I'm putting together a gaming PC for a Golf Simulator setup and seeing some pretty high RAM prices compared to my last build. I'm planning on 32GB to go with an Intel 14600 CPU and a 5070ti graphics card. Most good quality 32GB modules at 6000 MHz with a CAS latency of 36 are around $250. However, if I want to go for a CAS latency of 32 (often linked to 6400 MHz), it adds an extra $50 to $100 to the cost, and choosing CAS latency 30 can nearly double the price. I'm curious whether the difference between CAS latency 36 and 32 is noticeable enough to justify that extra cost. Which is more relevant for gaming and productivity: sticking with 6000/CL36, or should I invest in the lower CL options?
4 Answers
You probably won’t notice much difference between CL30 and CL36 unless you’re running benchmarks. Most people won’t feel the performance impact during regular use or gaming.
Understanding how latency works is key here. Going from DDR6000 with CL30 to DDR6400 with CL36 can actually be a downgrade for gaming due to increased latency. Higher bandwidth is nice, but it usually matters less for gaming.
When using an Intel CPU, you don’t need to stress over hitting exactly 6000MHz. In practice, the CAS value isn’t going to impact your experience that much, so the difference between 6000MHz CL30 and CL36 is pretty negligible.
Generally, lower timings are preferred, but for gaming, faster RAM matters more than tight timings. The exception is if you're using an integrated GPU (like an AMD 780) where you would want both faster RAM and tighter timings. Also, if your CPU has a faster or larger cache, you might not see as big an advantage from faster RAM and lower timings compared to a CPU with a slower cache. With current RAM prices, it might be better to invest in a higher-tier CPU instead of splurging on faster RAM right now.
Honestly, for me, it’d only be worth an extra $5 to consider paying for lower CAS latency. You likely won't gain any noticeable performance with those small differences.
It really depends on the game. Some might show a noticeable difference, while others won't see any change at all.