Is 36 cas latency good. 3 ns, while CL36 translates to 12 ns.
This delay is measured in milliseconds (ms) and is often called your "ping. For example, a RAM kit with a CAS latency of 16 takes 16 clock cycles to access the data and complete the task. It's a nice upgrade. Dec 5, 2022 · The CL16 memory kit is one that has a CAS latency of 16. DDR4 usually has a CAS latency of 16, while DDR5 will have a CAS latency of at least 32. 889 first word latency and 16 CAS latency or 3200mhz, 10 first word latency and 16 CAS latency. 778 3600cl16 latency is 8. Also where'd you get 36ns from? Theoretical first word latency for the slow 4800MT/s CL40 kits is 16. Here are a few examples: 3600cl14 latency is 7. What Is the Best CL16 Timing? The best CL16 timing is CL16-18-18. I only realised now that the latency timings for the RAM are really poor and not only that, there's isn't much a price difference between the kit I bought and the kits with lower latency timings like CL16. logicalincrements. 3333 (speed in MHz) / 15 (CAS latency) = 222. Most would think that the lower the CAS Latency the better, as this value refers to your memory's ability to quickly respond to new information. " The lower your latency, the better. Jul 2, 2018 · RAM (memory) timings are complicated. Latency is best measured in nanoseconds, which is a combination of speed and CAS latency; Both speed increases and latency decreases result in better system performance . Mar 20, 2022 · The combination of CAS latency (CL) and frequency gives you an absolute latency in nanoseconds, lower is better. There is a set of amazing looking ram with a CAS of 16 and a set of decent looking ram that has accents thta don't match my system with a CAS of 14. The effective latencies and latency times that are primarily relevant for gamers and are of interest with regard to the minimum FPS are calculated as follows: CAS latency ÷ effective memory clock × 2,000 ns Dec 24, 2021 · In that mindset G. Apr 24, 2022 · CAS Latency is expressed in clock cycles, so don't be fooled by higher numbers. For example, between 22 and 16, 16 is better. What is the rated speed? Higher speeds will naturally have higher CAS. CL ratings measure the latency, or delay, between the moment a command is issued to the memory module and the moment the data is retrieved. this is calculated like this: 1/((RAMspeed/2)/1000) x CL = random access latency. A CAS cycle latency of 15 is best for all mid-range gaming systems, and it is perfectly acceptable for most high-end gaming systems. Skill's 16GB and 32GB unbuffered DDR5-5600 memory modules with CL28 34-34-89 timings will be available as 32GB and 64GB dual-channel memory kits within the company's Trident Z5 RGB, Trident Z5 Aug 30, 2023 · Again, the RAMs with CAS latency 16 don’t overheat like CAS latency 15 RAMs. Since both are CL16, the higher clock speed obviously wins, but even 3600MHz CL18 would have the same total latency as 3200MHz CL16, while still having more bandwidth. 625 ns 800 MHz 1. --1 Godly, 2 Great, 3 Good, 4 Average, 5 Apr 24, 2024 · At the heart of the DDR5 RAM CL40 vs CL36 debate lies the concept of CL (Cas Latency) ratings. CAS Latency is the measured delay between the moment the memory controller queries or asks the RAM for information, and the time at which it becomes available. Let’s calculate the true memory latencies of DDR4-3200 CL22 and DDR5-4800 CL40 as an exercise. Nov 22, 2023 · In this article, we will explore the concept of CAS Latency and its significance in RAM performance. Mar 11, 2024 · Understanding DDR5 RAM CL. The smaller the CAS I'm building a new PC. 13 ns 10 CAS latency is only half of the (quick and easy) metric. 75 ns Sep 8, 2023 · What is a Good CAS Latency for RAM? Actually, the lower the value of CL, the better the RAM is. You are looking CAS latency (sometimes called ‘first word latency’), which is a just an indicator. We would like to show you a description here but the site won’t allow us. When it comes to CAS latency, the DDR5 4800 RAM has 40, while its extended timings are 40-39-39. g. So, there isn’t any particular value that can be referred to as a good CL value. Column address strobe latency, also called CAS latency or CL, 12. Knowing what makes a “good” latency is a bit more involved than just looking at a number. CL is referred to “CAS Latency” and the number after “CL” represent the CAS latency of that RAM kit. RAM speed defines the amount of data that a RAM can transfer in one second. Lower CAS latency means faster performance, regardless of the memory speed (assuming there isn’t a gap of more than 1,000Hz between the CL16 and . One is some T-force ddr5 6000mhz cl 38-38-38-78 that's going for $175 and the other is gskill ddr5 6000mhz cl 30-40-40-96 for $210. The difference is 1st one CAS Latency 30 & Memory Latency Timings 30-40-40-96 and the 2nd CAS Latency 36 & Memory Latency Timings 36-36-36-96. On the other hand, higher CAS latency can introduce delays, slowing down various tasks, especially those that require frequent RAM access. DDR5 RAM CL, also known as CAS latency, represents the number of clock cycles it takes for the memory to respond to a read or write request. With looser (higher) latency timings you may gain memory frequency. As a result, the other components on the PC remain safe from overheating. CL16 sticks are ideal for Ryzen CPUs. 36 is pretty good already. I've just spent a small fortune on building a PC, almost makes me wish I'd waited a few more months and gotten myself a DDR5 set up Nov 21, 2023 · The CAS latency of your RAM can significantly impact system performance. DDR4 CAS Latency. Jan 2, 2022 · The major difference between RAM Speed and CAS Latency is that the more RAM speeds the better, and the lesser the CAS Latency, the better. As for CAS latency, DDR5 has achieved optimized CAS latencies a lot faster than DDR4 did when it was first released. Higher Frequency is better then timings. May 4, 2022 · Not just one notch either, but two notches—G. Apr 30, 2024 · The CAS latency of the Corsair Vengeance RGB, CL36, is the first number of the timings and is one of the main factors in determining the latency and overall speed of RAM. 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 For DDR5 RAM, any CAS latency below 36-38 is good, and for DDR4 RAM, I would recommend going with any RAM that has CL18 CAS latency. PCP lists the value when you search for memory (First Word Latency). Primary, secondary, and tertiary timings can impact benchmark performance on Intel and Ryzen CPUs, and we talk about th What we have is the 32GB kit, so there are two 16GB modules included. Don’t fixate on latency. True memory latency is measured in nanoseconds and is a combination of RAM speed and CAS latency. Oct 6, 2020 · For latency calculations, we need both the data rate (3200 MT/s) and the CAS (24 clocks) to calculate the CAS in terms of nanoseconds, the real world latency (in this case, 15 nanoseconds). 2400 CL 14 -> 11. Latency is generally dictated by your physical distance and connection type. See full list on blog. Extended memory timings are usually ignored when calculating true memory latencies and system latencies. Both are same price and speed. The 'best' speed for a 3600 is the same as for any Ryzen 3000 CPU: that's 3600Mtps clock speed with synchronized infinity fabric and CAS 18. A typical DDR4-3600 RAM with CAS 15 latency has an actual latency of 8. CAS Latency. The general consensus is that memory timings and frequencies have marginal impact on real-world performance. 00 ns CAS latency The CL number states latency in terms of "number of clock cycles". The main timing you need to pay attention to is the first one, known as the CAS Latency or CL. 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. Apr 30, 2024 · The CAS latency of the Corsair Dominator Platinum RGB, CL36, is the first number of the timings and is one of the main factors in determining the latency and overall speed of RAM. CAS latency, or Column Access Strobe latency, is the time between when a memory controller tells the RAM to access a particular memory column on a RAM module and when the data from the given array location is available on the module’s output pins. What CAS latency does everyone else get when you disable XMP? Primary PC Tower: RAM CAS Latency Tested | 3000MHz (CL14) vs 3600MHz (CL16) vs 4000 (CL17) vs 4133MHz (CL19) vs 4400MHz (CL19) | Ryzen 9 5900X + RTX 3080 | PC Gameplay Benchma RAM Speed. I plan on playing bf1. 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 When comparing pure CAS latency versus transfer speed, you're looking at first word latency - yes, that can be important, but it's not the whole picture, and it is mitigated significantly by increasing cache allotments in the socket. For voltage, the memory kit has 1. 40V. The lower the latency, the better the speed at which the RAM completes its cycle. Nov 9, 2022 · With CAS Latency, you’re typically looking for a lower number—thus a lower latency—rather than a high number. Debating on whether or not to spend the extra $30 AUD and lose some RGB for 3600mhz, 8. Latency refers to the time it takes for data to make a round trip between your device and the server you‘re connected to. Feb 6, 2022 · You may notice the RAM timings while buying a RAM such as CL16-18-18-38 or CL14-14-14-34 or CL 16-18-18-36. However, it can be misleading at times. Get a 3200MHz CL16, do not bother with this kit you are looking at. Skuill shipped out their best DDR5 memory, the G. In this case, the 3333 MHz with C15 will be the better Nov 24, 2020 · Yes CAS Latency matters, ii is the number of clock cycles that pass from when an instruction is given. Can I Mix CAS Latency RAM? Yes, you can but it won’t be a good idea. The IC used wasn't revealed, though we'd expect it's either Samsung or Hynix. Oct 4, 2016 · I have been looking at RAM for my new build and am wondering how much CAS will affect gaming and everyday performance. Jan 27, 2022 · The Trident Z5 and Trident Z5 RGB 32GB (2x16GB) kits are rated to run at DDR5-6400 CL32-39-39-102 at 1. Jan 8, 2021 · I have a single ram kit of 32GB 3200Mhz with cas latency of cl22-22-22-52 and i'm planning to buy a second one next month to have a 64GB dual channel memory Could this ram wok fine with a Ryzen 9 3900X and a b550 Aorus pro AC firstly with single ram kit and then i will add a second ram stick. 67 ns CAS latency 3200 CL 16 -> 10. . 3400 (speed in MHz) / 16 (CAS latency) = 212. A higher number at a higher frequency can very well translate to the same absolute latency (in nanoseconds) CL 16 at a transfer rate of 3200 MT/s translates to 10 ns CL 38 at a transfer rate of 5200 MT/s translates to 14. CAS Latency (CL) is often the most discussed among these – it’s the delay between the memory controller asking for data and the RAM being able to provide it. While we have a longer discussion on the topic , the short answer is you should expect to see 1ms of latency for every 60 miles between you and your endpoint, plus a base Jun 5, 2017 · Hi I found some G. So higher CL = slower clock cycles, so effectively your 3200MHz ram would perform closer to that of a 2133-2400MHz CL16 kit. But you can frequently get CAS 16 or (rarely) 14 for even better latency with higher quality DIMM kits. Jul 18, 2024 · Primary RAM timings are a set of numbers, like 16-18-18-36, reflecting four key latency measurements. We've also observed that, in addition to memory speed, memory timings affect performance. CAS Latency is the most prominent primary timing and it is defined as the number of cycles between sending a column address to the memory and the beginning of the data in response. 6000 MHz @ CL38 is 12. 75 ns 15. 36 ns DDR3-1600 1600 MT/s 0. (2x 16GB). CAS stands for Column Address Strobe, a key aspect of RAM functionality. The lower the CAS latency, the better the RAM’s Dec 19, 2016 · I heard that sometimes the cas latency and speed can affect performance in CPU intensive titles. It has a UDIMM module and an unbuffered DIMM. DDR5-6000 CL40 translates to 13. 63 ns 18. 250 ns 11 13. Because I would hate for you to be confused, I'll sum it up. This means that the RAM takes up to 16 cycles to complete a function or task. I know the first number is the Latency, but not sure about the others. Thus, higher frequency numbers and lower latency numbers both improve overall memory performance. Dec 22, 2020 · CAS Latency (tCL/CL/tCAS) CAS Latency – Image: MakeTechEasier. This has a very simple explanation: their complex nature, given the large amount of 3D modeling that must be processed (whose information must be sent by the CPU to the GPU), means that they need to access RAM much more often than in other Applications. DDR4 CAS Latency ranges from 15 to 19 clock cycles, with the most common latencies being 15 and 16 Apr 30, 2024 · Upon analyzing the model F5-6000J3636F16GX2-FX5, we determined that it has a latency of 12 ns, based on 36-36-36-96 (CL36) timings and the module's clock rate. Gives you the fastest stable FCLK and RAM speed at 1:1 with low latency, and timings can be We would like to show you a description here but the site won’t allow us. Measured in nanoseconds (ns), it indicates the time delay between when a command is issued to the memory and when the data is retrieved or Jun 9, 2022 · Not necessarily, because latency is specified in clock cycles and DDR5 clocks much higher – so a clock cycle takes less time. Nov 22, 2021 · This is because memory speed and CAS latency are two different things. These are somewhat We would like to show you a description here but the site won’t allow us. 85 ns first word latency. In the end though, those ram stick will perform real close to each other. They are pretty much the inverse of each other. com Latency is best measured in nanoseconds, which is a combination of speed and CAS latency; Both speed increases and latency decreases result in better system performance . Sep 20, 2021 · Clockspeed matters more than timings for performance, especially subtimings. Skill Ripjaws V 3200 with timings of 16-16-16-36 at 140 euro. Skill's new extreme low latency DDR5 memory kits boast a CAS latency of 28 in both 64GB (32GBx2) and 32GB (16GBx2) packages. 5600 MHz @ CL36 is 12. Jul 25, 2023 · Moreover, C36 RAM boasts a CAS latency of 16. Apr 23, 2022 · CL is another way of describing CAS latency. 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 Apr 18, 2023 · DDR4 RAM modules are generally available with CAS latency values in CL14 to CL18, which are considered good. In simpler terms, CAS Latency is the time it takes for the memory controller to access a specific Apr 2, 2009 · With tighter (lower) latency timings you may sacrifice memory frequency. Is it worth spending more? thanks Latency is best measured in nanoseconds, which is a combination of speed and CAS latency; Both speed increases and latency decreases result in better system performance . Total latency and performance depend on a dozen other factors. How CAS Latency Affects Performance. I'm looking at some ddr5 64gb (2x32) ram and I'm down to 2 options. More cache is why the 12900K (and KF / KS variants) outrun the 12600K and 12700K, and why the slower R7 5800X3D Aug 11, 2013 · If you Google CAS Latency, you get a load of technical jargon with a side of understandable information. You want to have a lower CAS latency to improve the performance. Jul 1, 2022 · You've never used a Ryzen CPU 5000 series then, 55ns measured latency is considered about as good as you can get with daily stable settings. E. Nov 21, 2023 · The CAS latency value represents the number of clock cycles required for the RAM module to respond to the memory controller’s command. Lower Nov 20, 2022 · So from what I can see, getting the 5600@28 (or 6000@30) will yield me 25% more performance than the 6400@40 which is incredible as the 5600@28 is a fair bit cheaper. For example, here is a comparison of two RAM kits, one with 3333MHz and C15 and the other with 3400 MHz and C16. This value is typically synonymous with performance. Overall, we conclude that the effective frequency, latency, and capacity of this Corsair Vengeance LPX RAM are good for gaming and professional tools. 889 ns 3600cl18 latency is 10 ns 3200cl14 latency is 8. May 4, 2022 · G. 0 switch will load the only profile on board, for DDR5-6000 with 36-36-36-76 timings and 1. Ram Model is Team Group Elite TED432G3200C2201 Mar 1, 2024 · DDR5 RAM CL32 modules have a CAS latency of 32 clock cycles, while DDR5 RAM CL36 modules have a CAS latency of 36 clock cycles. 35V DRAM voltage. Sometimes, CAS latency is called CL. Overall, we conclude that the effective frequency, latency, and capacity of this G. Nov 17, 2023 · Understanding Latency and Ping. Although the difference might seem negligible in nanoseconds, it could significantly impact performance for gamers or users doing intensive work. Lower CAS latency values indicate faster response times, meaning the RAM module can retrieve and deliver data more rapidly. The CAS latency stands for Column Access Strobe latency, which refers to the delay between instruction to transfer data and the response time of the execution. Skill Trident Z5 RGB DIMM kit 32GB, rated DDR5-6000 and offering CL36-36-36-76 with on-die ECC. What Are the Characteristics of a CL18 RAM? A CL18 RAM is a RAM stick that has a CAS Apr 30, 2024 · Upon analyzing the model CMK16GX4M2D3600C16, we determined that it has a latency of 9 ns, based on 16-19-19-36 (CL16) timings and the module's clock rate. If a RAM kit has a CAS latency of 8, it will take 8 RAM clock cycles to perform the task. And as we mentioned previously, this is a two-quantity memory kit. I don't know which is better for a Gaming PC. In the example I mentioned above, I used 14-14-14-34. 1V. 33 nanoseconds, while the same type of RAM with CAS 19 latency has an actual latency of 10. The stunning heat spreader keeps the temperature of CL 16 RAMs as low as possible. 35: Gear 1 officially supports DDR4-3200, while good samples can go higher. This week, I put together a pc with an i5-12400F, Crucial 8X2 gb DDR4 RAM @3200 22CL and Crucial 1 tb nvme with GPU to be purchased later. CAS latency is shown in multiple different ways such as CSA 16, CL 16, or CSA 16 timings. If the frequency were increased to 3600 MHz, the CAS latency would remain the same, but the time it takes to read data from the module would decrease. Jun 27, 2013 · CAS# latency (CL) 11. Feb 19, 2022 · 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. Faster CAS latency means quicker data retrieval, resulting in a more responsive computer. Perfect for Intel platforms, the Dominator Titanium No, the CAS latency is actually ~15% lower. 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 May 23, 2024 · The most widely recognized timing for memory would be CAS Latency. In most cases you'd only see the tangible differences in synthetic benchmarks. Well 3200 has much shorter/faster clock cycles than 2400, so even though the CL number is larger the actual latency is lower (better). And what I noticed is that on all the currently available DDR5 modules, the lowest CL value was 36, and the cheaper ones are 40, but the bandwidth is so much higher that it still performs a lot better. 66 ns first word latency. CAS Latency is a measurement of how many clock cycles it takes your RAM to process a command from your processor. CAS latency is how quickly the RAM can deliver data to the CPU. 3 ns, while CL36 translates to 12 ns. What is CAS latency? CAS latency is the first type of timing latency that tells us how quickly the RAM can send back the data your CPU has asked for. For PC gaming, CL38 would be a good starting point to run games lag-free. They will not go down to anything close to 10-20 over time. However, lower CAS Latency can also increase power consumption and may require more aggressive cooling. It marks the first part of a sequence of memory timings. Mar 21, 2024 · CORSAIR Dominator Titanium RGB DDR5 7200MHz CL36 is a highly stable RAM kit that boasts a crazy good clock speed of 7200MHz with low latency. This is the most widely compared and advertised timing. Dec 24, 2020 · However, I noticed that the CAS latency of my RAM, when XMP is disabled, is CL15 (15-15-15-15-36). (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. Mar 19, 2024 · What is CAS Latency? CAS latency, or timings, refers to how many clock cycles it takes for the RAM module to output data needed by your CPU. Which should I go with? While DDR5 RAM is newer with better storage density and power efficiency than DDR4, it tends to have higher CAS latency. For example, CL16 means that the RAM has a CAS latency of 16 clock cycles. In simpler terms, CL ratings indicate how long it takes for the memory module to respond to a read or write Use the RAM latency calculator. 6 ns Sep 6, 2023 · Good to Know – RAM latency has a greater impact on games and productivity applications than on other types of applications. 0 RAS# to CAS# delay (tRCD) 11 RAS# Precharge (tRP) 11 Cycle Time (tRAS) 28 Very good to hear the memory vendor is being so helpful. We will delve into what is considered a good CAS Latency, factors to consider when choosing RAM with good CAS Latency, and its implications on your computer’s overall speed and responsiveness. In essence, lower CL means faster memory access. The RAM with a CAS latency of 15 is faster than the RAM with a CAS latency of 16. Oct 14, 2022 · Flipping the XMP 3. Beyond that, you get lower latency and better performance but you’re paying too much for it; that money would be better off saved for a new CPU, or DDR5. May 14, 2020 · You get higher access speed with no loss in latency. Also, 3200 cas 16 is pretty much equal to 3000 cas 15, but because 3200 mhz is faster, 3200 cas 16 will perform slightly better. At the same time, other CAS latencies in the range of CL15 and CL18 are also common in DDR4 RAM modules, providing good performance for most gaming needs. Even with high latencies, DDR5’s massive bandwidth improvements are enough to compensate for its high latencies. It's an Intel build if that matters at all. That can improve level loading when still using a HDD with 32GB RAM. Mar 2, 2024 · What is CAS Latency? CAS latency is a measure of how long it takes for the RAM to respond to a request for data. Apr 30, 2024 · Upon analyzing the model F5-5600J3636C16GX2-FX5, we determined that it has a latency of 13 ns, based on 36-36-36-89 (CL36) timings and the module's clock rate. For users who prioritize absolute performance and are willing to pay a premium, DDR5 RAM CL32 modules offer the lowest CAS latency and the best overclocking potential. Semiconductor engineers know that CAS latencies are an inaccurate indicator of performance; Latency is best measured in nanoseconds, which is a combination of speed and CAS latency; Both speed increases and latency decreases result in better system performance Feb 7, 2022 · You can also think of CAS latency as the number of RAM clock cycles needed for RAM to output data that the CPU calls. 7ns, and actual to core latency is closer to 60ns+ on the slow kits and 50ns is on the good 6000+ kits with ti Is CAS latency 36 good? 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. DDR, DDR2, and DDR3 RAM memories are classified according to the maximum speed at which they can work, as well as their timings. Jun 2, 2023 · 30-36-36-76: 1. So CL 16 RAM will be a faster unit than CL 18 RAM. The combination of RAM frequency and timings, especially cas, is what determines random access first word latency. Dec 1, 2022 · Speed / CAS latency = value The higher the number you get for “value”, the better. However, because of its faster clock speeds, the newer standard has better performance overall. Skill Ripjaws V 3200 with the timings of 16-18-18-38 at 130 euro. EDIT: Here is where I get speed is more important then Cas. This is an issue we’ve run into before: we had two kits identical in frequency and capacity, but with different latencies; however, the 16-18-18-36 Corsair kit somehow outperformed the 14-14-14 Apr 10, 2023 · The Importance of CAS Latency (CL) What is CAS Latency? Let's zoom in on the first number in that RAM timing series, the CAS Latency (CL). Random Access Memory Timings are numbers such as 3-4-4-8 Dec 5, 2023 · CAS Latency can affect the performance of your memory, with lower CAS Latency generally resulting in better performance. But this discussion is academic if you want to overclock, as the 3200MHz C14 kits are known for good overclocking potential. 56 nanoseconds. It stands for Column Address Strobe Latency, and it's the star of the show when it comes to RAM timings. The lower the CAS latency, the faster the RAM. See our PC Memory 101 feature and How to Shop for RAM story for more Which is why I was curious about the difference between 16-16-16-36 and 16-19-19-39 timings, as it seems to me the later is more like most C18 sticks timings, unless the CAS matters a lot more than the other timings. Also, what CPU do you have? Are you comfortable with manually tuning RAM? Ryzen seems more sensitive to RAM speeds than Intel. I'm looking at RAM for my new build and I found some that are almost identical except for the CAS Latency & Memory Latency Timings. The same online shops sells G. CAS latency is measured in clock cycles, and it is typically expressed as a number followed by the letter “CL”. Apr 25, 2023 · For example, if a memory module has a CAS latency of 16 at a frequency of 3200 MHz, it means that it takes 16 clock cycles to read data from the module. This gets broken down according to CL or CAS latency, Trcd, Trp, and Tras. Skill Flare X5 RAM are excellent for gaming and professional tools. Another thing to keep in mind: Modern OSes use all the remaining RAM for disk cache. CL14 is regarded as an excellent CAS latency for DDR4 memory. CAS latency and "true" latency are not distinct quantities -- they are both CAS latency described in different units there is no "truth" gained from "calculating true latency" -- this is just a simple unit conversion to a common unit, which allows us to make meaningful comparisons May 7, 2021 · The relationship between cycle time and frequency means that a CAS Latency of 8 cycles at 800 MHz is only as quick as a CAS of 16 at 1600 MHz. ig nv tc sp cx le er wh pg yy