Cas latency lower or higher. Go to topic listing CPUs, Motherboards, and Memory.

RAM CAS Latency (CL) and Timings. You want frequency as high as possible and timings as low as Nov 11, 2019 · Is a higher CAS latency better? The lower the CAS latency, the better A RAM kit with a CAS of 16 takes 16 RAM clock cycles to complete this task. The higher CAS numbers keep the real time latency similar to the real time latency for DDR3/4, but the RAM is much faster in all other ways. Lower latency means data starts to come sooner, however the higher the bandwidth the faster a burst can be transmitted. However to go from 14-14-14-31 timings to 12-13-13-28, I had to raise dimm voltage from 1. The BIOS stores detailed information about various hardware components, including the RAM. RAM latency (lower the better) = CAS Latency (CL) x 2000: Speed, CAS latency, module size, and module quantity Mar 19, 2024 · DDR4 typically has a latency of 16, whereas DDR5 will have at least 32. Simply put, the CAS Latency is how long it takes for the RAM unit to access its memory column and make that information available to the RAM output and, thus, the computer Dec 1, 2022 · Simply divide the speed by the latency and you can see which one will perform faster: Speed / CAS latency = value. The first primary timing, tCL, is the CAS Latency. Typically, Ryzen systems really benefit from better RAM. However, a lower CAS Latency can also result in higher power consumption. Dec 18, 2015 · Lower CAS Latency is wanted, all else being equal. Part of the reason the latency is so slow for DDR5 is because the memory controller is running at half speed (Gear 2), so data is only being transferred 1. No, the CAS latency is actually ~15% lower. Actually the base formula for calculating effective memory latency (in nanoseconds) = 2000 x CAS Latency ÷ Memory frequency in MHz Lower Effective Latency is also preferred. It reduces the lag time between sending instructions and executing them in-game. The following formula is used to calculate ram latency. With DDR5's higher data transfer speeds, you would think that alone translates to better gaming. g. As speeds increase, true latencies decrease and/or remain roughly the same, meaning faster speeds deliver better performance. But that is not always the case. Dec 1, 2013. Higher is better. Overall, the general rule of thumb is the lower the CAS latency, the better. 3. Go for whichever is cheaper. #1. If low latency is more important, prioritize lower CL values. Since both kits have similar memory latency, the DDR4-2400 memory Jun 28, 2018 · What makes the biggest difference for gaming high speeds or low CAS latency? Today we go over in detail to educate you on how to properly chose RAM to be the Dropping tCL from 14 to 12, yielded about 60% of the gains maxed out tREFI gives on latency and pretty much no gains to memory bandwidth. 0. Real time latency has been similar in DDR memory for a long time, not Oct 4, 2016 · A figure of merit for performance is to divide the speed by the cas number. tREFI is a temp sensitive timing, DRAM has to recharge at set Jul 25, 2023 · Ram Latency Formula. 6000 MHz @ CL38 is 12. Where RL is the ram latency (nanoseconds) CL is the CAS latency (CL) DR is the data rate (MHz) To calculate RAM latency, multiply the CAS latency by 2000 then divide by the data rate. In conclusion, both Clock Speed and CAS Latency are important metrics to consider when purchasing a DDR4 RAM module. An 8 GB RAM at 2,666 MHz can have CAS latencies from 15-19. Get the less expensive CL9 RAM and spend the extra on something Jun 23, 2019 · Rhaemond said: To answer your question, relatively, yes your game will be faster if you choose the lower latency RAM. 2. 89 nanoseconds. We would like to show you a description here but the site won’t allow us. This will make the latency numbers much easier to grasp. 35v, that’s why you can’t use them on some laptop with the advertised Cas 16. [1] [2] In asynchronous DRAM, the interval is specified in nanoseconds (absolute time). If you can't, they'll work fine, and you may never actually see the difference. logicalincrements. , it takes 16 clock cycles for the RAM to provide the Dec 22, 2020 · This set has the biggest impact on the actual latency of the RAM kit and is a point of focus while overclocking too. Primary, secondary, and tertiary timings can impact benchmark performance on Intel and Ryzen CPUs, and we talk about th Nov 24, 2020 · Yes CAS Latency matters, ii is the number of clock cycles that pass from when an instruction is given. Aug 11, 2023 · RAM Latency depending on CAS Latency and Transfer Rate. 33 nanoseconds. 3200mhz CL14 and 3600 CL18 will be very similar in the real world. 02ns delay on the 333MHz model. 778. ) The common scenario has faster memory with higher CAS latencies (as measured in cycles). Still, if 3GHz CL15 was the same as 3. But no, decreasing CAS latency won't automatically cause problems, and low CAS latency is a good thing. I heard that sometimes the cas latency and speed can affect performance in CPU intensive titles. Jun 30, 2022 · RAM Speed vs. Aug 11, 2015 · Jan 27, 2016. But why does this timing matter? Well, lower CAS latency means the RAM can respond faster to data requests from the CPU. RL = CL *2000 / DR RL = C L ∗ 2000/DR. It is designed to be able to conduct more transfers per second, and one drawback to the increase bandwidth was higher latency. #5. Well 3200 has much shorter/faster clock cycles than 2400, so even though the CL number Oct 6, 2020 · Starting with the lowest data rate, the DDR5-3200A standard supports 22-22-22 sub-timings. Large packets of data will speed up ni Apr 1, 2017 · Is Ryzen's gaming performance based off higher RAM Clock speed or is CAS Latency also important? For example, TridentZ's 3200Mhz DDR4 has a CAS Latency of 16 and a more expensive one with a CAS Latency of 14. So lets start with his erroneous claim that DDR4 "Needs higher CAS Latency". CAS latency. You may have come across 16GB RAM kits where one of them costs 80$ while another costs 110$. In your example, the cas 14 ram would be faster. #2. Lower CAS Latency (CL): A lower CAS latency value indicates better RAM performance. Before we dive into calculating memory or RAM latency, there are Dec 2, 2020 · Dec 2, 2020. Therefore, the order of the number in the string 16-18-18-38 tells us which primary timing has what value at a glance. 66 ns first word latency. Reply. However, with modern processors the performance increase isn't really worth the cost unless you absolutely must squeeze that last percentage point out of your system. 25ns (0. May 17, 2016 · At lower frequencies, DDR4 does tend to have higher latency ( at least it's more common for DDR4-2133 and DDR402400 modules to have higher CAS than their DDR3 counterparts ) but that's hardly . Nothing has changed, as DDR3 memories, DDR4 memories does not differ much considering different cas latency and/or frequency. Use the RAM latency calculator . The higher the number you get for “value”, the better. I see a lot of 3200MHz CL16 16GB SODIMM kits on Amazon for reasonable prices. 67 ns CAS latency. As for why the timings are so much looser on DDR5, that's the way it goes for every new DDR release. I would prefer lower latency if the price is only like 5-10$ more. Column address strobe latency, also called CAS latency or CL, is the delay in clock cycles between the READ command and the moment data is available. By optimizing the balance between the maximum speed your processor is capable of and the lowest latency memory available within your budget, you can achieve a higher level of performance using newer, faster, and more efficient memory. Lower CAS latencies are helpful for specific tasks, but as I said, it depends on what you are doing. If you are unsure about choosing between two memory modules, we recommend getting a RAM with higher frequency and lower CL. 45. No, higher CAS latency is not better. Lower CAS latency values result in shorter delays and faster data retrieval, leading to improved overall system performance. 1. This boosts responsiveness and performance 11. They will perform pretty much identically. 17ns (0. The lower the CAS latency, the better. Nov 9, 2022 · With CAS Latency, you’re typically looking for a lower number—thus a lower latency—rather than a high number. 2ns, fourth word 9. Latency means delay, it determines how long the CPU has to wait to get a response when it makes a request to RAM. Feb 19, 2011. It is clear as day which of the two modules has the higher RAM speed. This might seem small, but in heavy-duty computing, it matters a lot. CAS latency stands for Column Address Strobe latency, which is the time taken by the RAM module to access the data requested by the processor. 20v (The Crucial as mentioned above operate at 1. Using the examples you provided to compare the CAS latency 16@3200 vs 18@3600, actual latency is 10ns for both. I'll take the 800 clock tick speed up over the 4 any day. So the biggest misconception is that faster memory has a higher absolute CAS latency - because the CAS latency as measured in cycles is higher, when in actual fact it has a lower absolute CAS latency, when measured in nanoseconds. Feb 19, 2022 · 4596 posts · Joined 2009. 36 is pretty good already. On the other side, the same DDR4-3600 RAM with a CAS latency of 16 has an actual latency of 8. The best ram should have low cas latency and bigger MHz. May 4, 2022 · These are somewhat higher speed kits too, at DDR5-5600 as opposed to DDR5-4800. 2400 CL 14 -> 11. g for the 3200MHz kit, the clock rate is actually 1600MHz because it's DDR RAM. As for the amount of FPS you'll get, that depends still on other factors. #2 · Feb 19, 2022. 00 ns Mar 18, 2023 · On Hynix DDR5 though, with the primaries the only real rule is that CAS latency has to be even on pretty much every board but the Z690/Z790 Dark from EVGA. The combination of RAM frequency and timings, especially cas, is what determines random access first word latency. Solution. IMO, it might have some significant difference in professional competency by using LN2, I'm not that sure, though. Nov 4, 2023 · I was just asking how does the higher speed but higher latency RAM kit logically exist, because the lower speed but lower latency RAM kit gives the same performance (or at least, by the numbers. 3200 CL 16 -> 10. This indicates that the CAS, tRCD and tRP values are all equal to five clock cycles, and that the tRAS value is equal to 15 clock cycles. May 17, 2022 · Contrary to our expectations, latency at this 6600MT/s overclock is lower than at the JEDEC standard of 4800MT/s. Therefore, there can be a trade-off between fast RAM speeds and lower latency. For instance, in gaming, DDR5 RAM CL36 can deliver smoother gameplay, reduced stuttering, and faster load times. It acts as a short-term data cache between slower storage like SSDs and the processor. Well, anytime you start overclocking and playing around with RAM frequency or timings, you need to make sure it's stable. 7ns, and actual to core latency is closer to 60ns+ on the slow kits and 50ns is on the good 6000+ kits with tight timings. . It depends on waht you are trying to use the computer for. So in theory a faster kit with higher latency can finish a read or write operation before a slower kit with lower latency, rendering the latency increase moot. If they're the same I'd probably go 3600 on Ryzen, and I'm not sure it even matters on Intel. Higher-density memory chips may require more time to access data, resulting in higher Cas latency is important and you should consider it when buying ram. I plan on playing bf1. In video editing, DDR5 RAM CL36 can Dec 21, 2023 · The lower the CAS Latency and RAS to CAS Delay values, the faster the RAM performance. For example, a RAM module with a CAS latency of CL14 has a faster response time than a module with a CAS latency of CL16. Although the difference isn’t significant, it can still affect Nov 21, 2023 · Method 4: Check the BIOS settings. CAS Latency, or CL for short, describes the clock cycles needed for the RAM to access and return a certain set of data from its columns to its pins, and the lower it is, the better. Dec 28, 2023 · CAS latency is one parameter that determines the performance of RAM. If you actually bought that CL22 RAM from a retailer , return it and get something CL16 or lower. The former is measured in MT/s (Megatransfers per second) and the latter in nanoseconds. What is more important, having high clock speed or low cas latency? the most common pairings seem to be 14 CL at 3200 MHz, 16 CL at 3600 MHz and 18 CL at 4000 MHz though there are some in-betweeners. Mismatched CAS latency values can result in stability issues or poor performance. It's measured in clock cycles so higher frequency RAM at the same CAS has a lower actual latency also. May 4, 2022 · To throw a brief bit of maths at things, the real-world CAS latency is measured as (CAS Latency x 2,000)/Memory Speed, which in the case of the DDR5-5600 CL28 kit comes in at 10ns. So CL 16 RAM will be a faster unit than CL 18 RAM. Higher-end systems and applications may benefit from lower CAS Latency and RAS to CAS Delay values. To access the BIOS, restart your computer Jun 30, 2019 · This is a fair bit more than my DDR4000 CL 19 kit, with a total latency of 9. Lower CAS latency means that the RAM can access data more quickly, which can lead to improved performance. Nov 21, 2023 · Lower CAS latency values combined with higher clock speeds can deliver excellent performance gains, but it requires careful monitoring and adjustment to ensure system stability. Nov 13, 2023 · Before we jump into timings, let‘s recap how RAM works under the hood. This makes lower CAS Latency RAMS better than those having higher CAS Latencies. Both timings measure different aspects of memory access. This clearly makes the memory module with lower CAS Latency the winner, given that the RAM speed is the same. The CL number states latency in terms of "number of clock cycles". In short, the lower the CAS cycle latency, the higher the speed of your computer. I'd recommend getting a 3200mhz CL16 kit as it shouldn't be too much more than a 3000mhz CL16 kit and will make a bit of a difference. Aug 25, 2014 · In simple number, the difference between 1600 and 2400 Mhz is 800 clock ticks. CAS Latency (tCL/CL/tCAS) CAS Latency – Image: MakeTechEasier Apr 23, 2022 · Lower CAS latency is an excellent choice to get the most out of your gaming experience. 3200mhz CL20 is terrible, and 3000mhz CL18 isn't much better. T he 1600MHz model is about 71. So higher CL = slower clock cycles, so effectively your 3200MHz ram would perform closer to that of a 2133-2400MHz CL16 kit. 00 ns CAS latency. DDR3-2400 CAS 12, for example, has 50 percent more bandwidth than DDR3-1600 CAS 8, but both of them take the same amount of time to initiate a transfer. Dec 19, 2016 · Followers 1. Latency. 35 to 1. Jan 2, 2022 · This means that the fewer cycles the RAM has to go through, the faster the data would be retrieved making your computer more efficient. In addition, you should consider the chip because it should be divided when calculating the latency timing. Consider the overall RAM speed and other timings when evaluating the performance of a memory module. Nov 20, 2023 · 1. BUT having RAM with massively high frequency and high latency is not beneficial, there needs to be a balance somewhere depending on the usage you have. 3333 (speed in MHz) / 15 (CAS latency) = 222. if Trc must be >= 40ns that's a CAS delay of 1 clock cycle at a 40ns (25MHz) clock, but 2 cycles ( 60ns) at a 30ns (33MHz) clock, so the faster clock reduces that aspect Feb 25, 2016 · The article seems to point out that higher frequency can overcome the drawbacks of lower latency. If raw speed is your priority, opt for higher MHz values. However, the faster clock speeds seen with DDR5 deliver better performance, resulting in quick speeds and minimal latency. Both speed increases and latency decreases result in better system performance. 83 clock cycle × 17 CL), and a 16GB CL19 DDR4-2666 kit’s memory latency is 14. Dec 1, 2013 · 32,640. E. From DDR3 to DDR4, there’s been a shift. 75 clock cycle × 19 CL). 5ns. For example, a typical RAM of DDR4-3600 with a CAS 15 latency has an actual latency of 8. Skill has tested its 16GB and 32GB DDR5-5600 memory modules with CL28 34-34-89 latency settings on a system featuring Intel's Core i7-12700K processor as well as Asus's ROG Maximus Z690 Hero Maybe the actual retail specs shifted a little towards freq than cas timing, which is actually adventagous because the higher MT/s does increase the data transfer rate with identical latency and 6000 MT/s appears to be a "safe" freq the Intel 12gen IMC and ddr5 boards have been handling well. 85 ns first word latency. Otherwise, our results are logical, with the fastest overclock resulting in a 33 Latency is best measured in nanoseconds, which is a combination of speed and CAS latency. 66% faster than the 333 model Jun 7, 2015 · Neither. Also, consider the clock speeds of RAM. True latency is best measured in nanoseconds. Apr 25, 2023 · Generally, lower CAS latency and higher frequency result in better performance, but these factors also tend to increase the cost of the memory module. Example: because the latency in nanoseconds for DDR4-2400 CL17 and DDR4-2666 CL19 is roughly the same, the higher speed DDR4-2666 RAM will provide better performance. Ideally we would have lower CL and higher frequency but in order to keep memory stable at higher frequencies the CL needs to be increased. You can use something like memtest86. Apr 25, 2017 · The total CAS latency takes 7 x 1,25 = 8,75ns, which is considerably lower from the 15. Ram is meant mostly for tasks like rendering or benchmarking. Apr 24, 2024 · The lower CL rating of DDR5 RAM CL36 translates to faster response times and improved overall performance compared to DDR5 RAM CL40. The lower the latency, the quicker the CPU can access the data temporarily stored in the RAM, resulting in a more responsive system. The higher the frequency the better the RAM. Skill is releasing an extremely low-latency Jul 1, 2022 · Theoretical first word latency for the slow 4800MT/s CL40 kits is 16. 3600cl16 latency is 8. Therefore, for two memory modules with the same frequency, a higher CL means a longer delay time. It's a nice upgrade. RAM memory timings usually appear as sequences of four numbers separated by dashes, as in 5-5-5-15. They are typically listed as something like CL36-38-38. Obviously this makes the dimms hotter. Mar 11, 2024 · The Verdict: DDR5 RAM MHz vs CL. (obviously a small difference, but this one is faster) Also - Ryzen 7000 series is designed to work with 6000 MHz, and in the past has been pretty sensitive to clock timings due to its FCLK. 92ns, and eighth word 10. What is CAS latency? CL: Short for CAS latency, refers to how long the computer needs to wait before it can actually start reading data from memory. [1] For example, CL16 indicates that the CAS latency is 16 clock cycles, i. what would make the most sense when choosing ram for the new ryzen chips and 3000 cards? Solution. 5T for lower-cost memory Apr 20, 2010 · 21,460. One of the reasons behind this price Nov 21, 2023 · Higher-speed RAM modules tend to have higher CL values, as they require more clock cycles to access data. Dec 6, 2021 · The stock primary timings will be provided by the RAM manufacturer. I parents bought me some corsair lpx ddr4 ram at 2666 MHz cas latency 16. Four ranks perform better than two, to the point that 32GB of DDR4-3200 often outperforms 16GB of DDR4-3600. RAM Density: The density of the RAM chips on the module can impact CL. The smaller the numbers that appear in these sequences, the tighter memory timings are said to be. A RAM kit with a CAS latency of 16, for example, can be described as CAS 16 or CL16 or as having CAS 16 timings. Apr 24, 2022 · DDR5 inherently has more bandwidth by the way it was designed. Go to topic listing CPUs, Motherboards, and Memory. If you want to find the CAS Latency (CL) of your RAM modules and have access to your computer’s BIOS settings, you can easily retrieve this information directly from the BIOS. No, getting lower speed RAM to get lower CAS latency is usually not worth it, it's the net latency that matters. Higher clock speeds give slightly more performance than lower CAS latency does so the 3600mhz CL 18 would be the better option. Get a 3200MHz CL16, do not bother with this kit you are looking at. Technology isn't a person, it doesn't need anything. Dec 21, 2004 · DDR4-4133 with CAS 19 (some of the most expensive DDR4 kits you can buy) has a first word latency of 9. Alternatively, a DDR5 8000mhz module would need a CAS latency of 40 to achieve a slightly higher latency of 10. The memory latency (measured in nanoseconds) is the combination of the memory clock cycle and CAS latency. For a balanced approach, aim for a combination of moderate MHz and low CL. For example 3600 CL16 is the same latency as 3200 CL14 so they are equal (except on Ryzen where the higher clock speed is a little better). However, if you’re on a Jul 2, 2018 · RAM (memory) timings are complicated. Typical values are 3T or 2. The sweet spot is a RAM kit with a low latency but high speed. 6 GB/s bandwidth per channel, this equates to a single access latency of 13. But, often such ram needs higher than stock voltage and that can impact your overclocking. When selecting RAM modules or optimizing existing ones, it’s crucial to consider the supported CAS latency by your system’s memory controller. Jan 4, 2006 · The safest and most correct value for "SDRAM CAS Latency" is usually printed on a label or etched directly onto the memory module itself. I didn't realize that the cas latency was so high when I recommended it to them. A higher number means more clock cycles. See full list on blog. Budget Considerations: If you’re on a tight budget, choosing RAM with slightly higher CAS latency values, such as CL18 or CL20, can still provide satisfactory Apr 29, 2021 · The latency is cas18 (xmp) and this model is compatible with all the laptop, because this timing are validated for 1. I would imagine that both kits would perform similarly, but the 866mhz difference between the 13 and 15 CAS might allow the 3000mhz to pull ahead slightly, but the article also suggests that except for extreme circumstances, memory performance doesn't effect framerates as much. Ultimately, the choice between DDR5 RAM MHz and CL depends on your specific needs and preferences. Would the higher CAS latency actually be a DOWNGRADE. This is in order of tCL-tRCD-tRP. For example a good balance for your average system is 1600/1866 CAS 9 RAM. Latency is best measured in nanoseconds, which is a combination of speed and CAS latency. Aug 30, 2023 · Differences Between the CAS Latency 15 VS 16. Technically, lower RAM timings are better (example: 8-8-8-21 is better than 9-9-9-24). Further, all memory brands have more or less the same quality. Is CL18 Better Than CL16? No, it’s not. Real world might be different between speed and latency?) but the memory controller will have an easier time communicating with the RAM at those speeds. Latency is often misunderstood because on product flyers and spec comparisons, it's noted in terms of CAS latency (CL), which is only half the formula for calculating latency. 16ns. If you’re building a gaming or video editing PC and want to maximize performance, a memory module with a low CAS latency and high frequency may be a good choice. However, it is essential to consider CAS latency in conjunction with the RAM’s clock frequency to determine the most appropriate RAM setup for your system. So if you have a ram 3200MHz and 16 cas latency you should have: (2000/3200)*16 = 10 Now the smaller the result is,the fastest the ram will be. The higher latency means a longer clock cycle delay, which cancels out any gains from a high clock speed. e. Ram does matter if you are comparing something like ddr4 3000 and ddr5 5600. Also not sure why you’re hoping for low latency at higher May 13, 2020 · Ryzen 3000 prefers faster memory but having a lower CL also helps. A 16GB CL17 DDR4-2400 kit’s memory latency is 14. RAM or random access memory stores data for quick access by the CPU. Jan 21, 2017 · Jan 21, 2017. What this tells me me, is that a DDR5 4800mhz module would need a CAS Latency of 22, for a reduced latency of 9. If you’re still having problems understanding what CAS latency is then consider a line at the checkout counter of a grocery store. CAS Latency in Different RAM Generations. The number in the timing is what is referred to as a memory clock cycle. 3600cl18 latency is 10 ns. Given the same frequency (1333, 1600, other) lower CAS is better. Ideally you want RAM such as 3600MHz at CAS latency 15 or 16 which is in a happy place. They will not go down to anything close to 10-20 over time. Dec 5, 2023 · In general, a lower CAS Latency is better. [3] In synchronous DRAM, the interval is specified in clock cycles. 5600 MHz @ CL36 is 12. 89ns So even though CAS 19 is much higher than CAS 13, the high frequency makes up the difference and the CAS 19 is far lower latency than the CAS 13. The 4 is really 8 or 10 but still a pittance. May 2, 2021 · Lower latency increases performance without increasing the data rate. S. It isn't significant, but the cas 36 would be faster. CAS Latency gets more and more important the faster the frequency. 0 ns. May 4, 2022 · G. Aug 18, 2021 · The higher the speed, and the lower the CL, the better the overall performance. Therefore, it is important to strike a balance between performance and power consumption when choosing a RAM module. Ram doesn't matter much on gaming as many people think it does. Ultimately ram speed for Intel chips means little when looking at real app performance or fps. The only advantage of DDR4 over DDR5 is that DDR4 has lower CAS latency. \$\begingroup\$ Also, sometimes you find as you lower the clock period, you need to increase a delay to meet a memory's timing requirements (published in its datasheet) - e. Here are a few examples: 3600cl14 latency is 7. CL timings are just a part in the calculation, and it only differs in a matter of nanoseconds The lower latency RAM at 16 provides faster data access. It is usually expressed in terms of the number of clock cycles, with a lower value indicating faster performance. 889 ns. The difference between CAS7 and CAS11 is 4 clock ticks. This is especially important on Intel and lesser so on AMD, but still important for both to a degree Nov 2, 2023 · The CAS latency or CL represents this delay duration in clock cycles. So for memory rated at CAS 12 @ 2666 MHz; effective latency = 2000 x 12 ÷ 2666 = 9. Here is an article by PC Gamer which tries to explain it simply Apr 18, 2023 · CAS latency is the time it takes for RAM to make the data available for use requested by the CPU. DDR3, for example, had kits going down to around CL8, whereas getting anything lower than CL12 on DDR4 is near impossible, but because DDR4 clocks so much higher the latency is much Feb 7, 2022 · With the same RAM speed, the lower CAS latencies will improve the performance, but they typically come at a higher cost. tRP usually does one tick lower than tRCD though that's not really guaranteed, and you can often trade tRP to tRAS as long as their sum adds up to the same number, but if you're lazy just Feb 23, 2021 · You can calculate the actual latency to compare. 2GHz CL16 then the price of ram would be the same for both. Nov 21, 2023 · These tasks require a high level of data transfer and can greatly benefit from a lower CAS latency. Nov 4, 2013 · The lower the CAS Latency or CL for short, the better the RAM. But I know the price also goes up as the CAS goes down and frequency or speed goes up. Dec 16, 2022 · I’d say whatever CAS latency you’ve already got is the correct one As with anything latency related in a PC, lower CAS latency is better but RAM clock speed will override CAS latency as the deciding performance factor so this is the last place you should be looking for gains. 5. Calculate by multiplying the CAS value with the clock cycle time. The lower the CAS latency, the faster the RAM can send data to the processor, and the higher the overall system performance. In real-world applications, this can manifest in various ways. this is calculated like this: 1/ ( (RAMspeed/2)/1000) x CL = random access latency. While memory speed (or data rate) addresses how fast your memory controller can access or write data to memory, RAM latency focuses on how soon it can start the process. At a theoretical peak of 25. For DDR4 RAM, you‘ll see CAS latencies ranging from CL14 up to CL22 at common speeds. "With a focus on breaking the limits of low latency with DDR5 memory, G. com May 2, 2017 · Most programs, including games, perform better with higher frequency. the algorithm to calculate is (2000/MHZ)*CAS. For example, here is a comparison of two RAM kits, one with 3333MHz and C15 and the other with 3400 MHz and C16. Generally, you will want RAM with a higher clock speed and lower CAS latency. So, lower CAS latency really can give an edge in certain apps 11. From the above table, you can see that a DDR4-3600 RAM with the CAS 15 latency has an actual latency of 8. jm pg at ql zj yd or lp zz nm