Originally Posted by bluej511
Originally Posted by gtbtk
You should really be looking at tuning for the best latency and not worry so much about frequency once you get the memory above about 2666 as the bandwidth should be more than suffoicient. Obviously faster frequencies will help as long as you use the tightest timings to go with it. You may find that a 3600mhz c16 kit running at 3200c14-13-13-34 gives you the best compromise of frequency and timings to get the lowest latencies and best gaming performance
Doing that will get gaming performance closer to the realm of 6900K. Ryzen at 62ns, it is almost there if you look at Timespy CPU results. Latencies have improved from 100ns at launch down to about 62ns so far with the commensurate improvement in gaming performance but Ryzen will never match a 5Ghz 7700K in a pure IPC combined with frequency battle especially in light of how well tuned the intel memory subsystem is these days..
Eh. I forgot where i saw it but for Ryzen and gaming the latency made no where near the difference that going with a higher strap did. Getting 5fps across the board in one game just by going from 2933 to 3200 is pretty damn impressive, especially for an older game.
It needs both, the frequency increases bandwidth and the latency helps with the throughput ( the work done over a period of time) which is the root of the problem. For memory access, it gets to a point where there is already enough bandwidth to support requirements and the rest goes to waste. 2666Mhz at 45ns (like an intel platform) will perform better under a gaming load than 3600mhz at 70ns. If latency is the same at both frequencies, then the 3600 will perform better.
What happened to the memory latency when you changed strap? In all the experimentation done so far, the latency has dropped down to as low as 62ns as the frequencies have increased when combined with tighter timings. Remember it started out at 100ns on launch day. One post I saw shower Timespy CPU scores over 9000, up from 6500 at launch, using 3200mhzc14 memory, the latency also dropped down to 62ns.
Right now though, Ryzen is still in that transition period between slow and best performance, things are changing on an almost daily level. Until the last bit of memory performance has been eeked out of theses systems, any configuration that you choose today is going to have to be a compromise of some sort. The best approach if you are after useful gaming performance is to try different configurations within the available range that has been opened up and pick the one that provides the best balance of speed and latency you can get. Resist the temptation to only go for the highest frequency in isolation. That helps in some workloads but is not always the best if you want the best frame rates. Cinebench and it would seem Blender, are examples of workloads that is not that impacted by the higher latencies.