just brew it! wrote:
Having tight timings should only matter if the workload tends to perform lots of random small memory accesses, where latency matters more than raw bandwidth. Also keep in mind that timings are specified in clock cycles, so "looser" timings at a higher clock speed may actually be a wash: 24 cycles at DDR4-3200 speed is exactly the same latency (in absolute terms) as 20 cycles at DDR4-2666 speed.
Hey JBI, want to piggyback off this thread. Where do you see the cycles on these sticks...?
I'm building a new rig, and looking at DDR4-3200~. There's a lot options, but something along the lines of G.Skills variant. I wanted to drop 16x2 sticks or 8x4,, but wasn't sure at what timing I should be aiming for, if it's going to make a really big difference. Seems like a few FPS at most in real world.
Timing 14-14-14-34 CAS Latency 14
Timing 15-15-15-35 CAS Latency 15
Timing 16-18-18-38 CAS Latency 16