What is good CAS latency for DDR4?

Best overall DDR4 RAM: Team Xtreem ARGB DDR4-3600MHz

It's one of the few 3600MHz RAM kits that come with a CAS latency of just 14. A lot of other kits in this collection have a CAS latency of 15 and higher, which means their memory timings are higher.

Is CAS latency 14 better than 16?

Overall, the lower CAS latency the better the performance. It's not the only metric you should be looking at as all other specs of RAM dictate the overall performance. Edit: the difference isn't massive. In games, a few frames of a difference at best.

Is CAS latency 15 good?

A stick of DDR4-3600 RAM with a CAS of 15 has a true latency of 8.33 nanoseconds, while a same-size/same-speed stick with a CAS of 19 has a latency of 10.56 nanoseconds. In this case, the DDR4-3600 RAM with a CAS of 15 is objectively better than the DDR4-3600 RAM with a CAS of 19.

Is 32 CAS latency good?

It's important to note that while a CAS latency of 32 is very impressive for default operation, it's just one timing. The Trcd, Trp and Tras also play a part, and these are set at 39-39-102 though we're sure these can be lowered with some tweaking or adventurous voltage application.

What is the ideal CAS latency for Rams?

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. 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.

RANT: THE CAS LATENCY TIMING DOESN'T MATTER AS MUCH AS YOU THINK IT DOES

Is DDR4 CAS latency 16 better than 18?

In terms of CAS latency and speed, CL16 is a little better than CL18. But from the prices, the CL16 is more expensive than the CL18. So, if your budget is not too much, you can choose CL18 for your computer.

What is the CAS latency for 3600MHz?

The 3600MHz unit, for instance, has a CAS latency of 18 whereas the 3200MHz unit is a C16 kit.

What is the lowest CAS latency DDR4?

Skill announces DDR4 RAM with lower latency. Specifically, the company has announced the RAM memories of the Trident Z RGB, Trident Z Royal and Trident Z Neo families. These three families of drives arrive with CL14 latency, the lowest latency on the market for 3200MHz.

Does CAS latency make a big difference?

CAS latency is an accurate indicator of real world latency performance. As speeds increase, CAS latencies also increase, effectively nullifying some of the speed gain.

Why is my CAS latency so high?

If your CAS latency is higher than what is advertised (e.g. latency is advertised as 3000c15-18-18 but runs at 3000c16-18-18), this is because of a BIOS setting that helps with memory stability on Ryzen systems. You can disable this setting so that the memory runs at its rated speed.

What is the CAS latency for DDR4 3200?

Calculating RAM Latency or CAS Latency

However, because advertised CAS Latency is measured in clock cycles, we need to account for memory speed to get a real-world CAS latency in nanoseconds. So, say we have a DDR4-3200 CL16 memory kit. You get a latency in nanoseconds with (16*2000)/3200 = 10ns.

What is the CAS latency of DDR5 RAM?

Most DDR5 modules have CL40 CAS latency, which negates DDR5's high clock speeds. It's faster at completing tasks, but it takes longer for the RAM to register it needs to perform a task.

Why is DDR5 CAS latency so high?

DDR5 inherently has more bandwidth by the way it was designed. As for why the timings are so much looser on DDR5, that's the way it goes for every new DDR release.

Is CL18 faster than CL14?

3600 cl18 will give you higher frame rates and a lower effective latency but the 3200 cl 14 will give you better frame times. If you use a 3200MHz RAM the memory clock (also called MCLK) and FCLK has to be lowered to 1600MHz directly affecting the speed of data exchange inside the CPU.

Is 3200 CAS 16 better than 3600 CAS 18?

The difference will be extremely minimal. You can see that the effective latency is the same. 3600 CL18 is the same latency as 3200 CL16. These are MASSIVE numbers, and it takes some incredible demands to reach a maximum throughput that will be bottlenecked by DDR4.

Which is better 3200 CAS 14 or 3600 CAS 16?

On Ryzen, 3600 CL16 is better than 3200 CL14 because it lets you run the Infinity Fabric clock higher in 1:1 mode, which offsets the minor increase in RAM latency. As for which kit you should get, it comes down to price.

Does adding more RAM reduce latency?

In some instances, more RAM makes better sense. In other cases, you will see better results going with a higher frequency and less latency. You may also notice a difference depending on which operating system you run. Switching from one to another may be all the upgrade your computer needs.

Is 36 CAS latency bad?

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. They will not go down to anything close to 10-20 over time. 36 is pretty good already.

Does higher speed reduce latency?

Opting for a faster speed will improve your bandwidth while changing internet type — like going from cable to fiber or satellite to wireless home internet — can reduce latency. If you're ready to make a change, find out more about our home internet options or call our Internet Experts at 866-383-3080 today.

What are the best DDR4 timings?

In terms of memory speed, you should look for DDR4 memory that operates close to or above 2,400MHz—or 2400MT/s as it'll appear on the packaging and online. Users purchasing DDR3 RAM should look for memory operating at 1,866MHz at least, and the closer to 2,000MHz the better.

What is the slowest DDR4 RAM speed?

DDR4 operates at a voltage of 1.2 V with a frequency between 800 and 1600 MHz (DDR4-1600 through DDR4-3200), compared to frequencies between 400 and 1067 MHz (DDR3-800 through DDR3-2133) and voltage requirements of 1.5 V of DDR3.

What is the latency of DDR4 3600 CL16?

Latency starts off at 98ns at Default, Auto DDR4-2667 with the CL20 timings. When we enable D.O.C.P. at DDR4-3600 with the CL16 timings of the RAM that is reduced quite a bit down to 78ns, a good 20ns reduction.

Which RAM latency is best?

While DDR4 RAM is newer with better storage density and power efficiency than DDR3 RAM, it tends to have higher CAS latency. DDR3 RAM usually has a CAS latency of 9 or 10, while DDR4 will have a CAS latency of at least 15. However, because of its faster clock speeds, the newer standard has better performance overall.

Is DDR4 latency worse than DDR5?

DDR5-4800 CL40 memory adds only ~3% more to the system latency than DDR4-3200 CL22, which is apparent in synthetic benchmarking but virtually unnoticeable in a majority of real-world use cases and games.