Hi All,
I have a Ryzen 1700x in a Aorus AX-370 K7
I am using 4x 8GB 2400mhz CL15 HyperX Fury dimms. I got a great deal at the time and I originally planned on splitting the set with a friend last year. I thought they said yes ordered and they went ahead bought their own ram anyway.
I have a Vega 64 now in the system, I generally run at 1440P 60hz.
So:
am I slowing down my system running all 4 sticks?
would OC’ing 16GB of the ram be better?
Am I better to cash the whole matched set in and get faster ram?
ie how much performance am I leaving on the table? I don’t care if its sub-10% difference between 2400 and 3200 in most games, more than that its starting to make me wonder.
I run 2x dual rank 16 GB sticks in a 2700x at 2800mhz, and it benches faster than a bunch of machines running 2x single rank faster clocked DIMMs (e.g., DDR4-3200 b-die) in firestrike - with dual vegas running marginally faster gpu clocks than mine - i suspect maybe they’re trying too hard and getting heat soaked or something). Not much, but we’re talking a config here that plenty of people would tell you is bad (non b-die, dual rank DIMMs).
Either way, it is strong in the CPU test.
I wouldn’t worry so much about the dual rank (or the similar 4-stick) penalty and just buy the amount of RAM you want.
Most of the time at sensible resolutions for your hardware you’ll be GPU limited in any case.
For the marginal frame rate advantage you MIGHT (and probably won’t)) get in the real world - it definitely is NOT worth giving up half of your memory capacity.
32 GB means bigger disk cache, ability to run bigger VMs, etc. Some games are starting to push for 10+ GB of memory now anyway, it won’t be long before 16 GB is baseline and 32 GB will definitely give improved performance at that point.
Performance boosts from high speed RAM are marginal at best in most cases and it comes down to system configuration and software (in this case mostly games). A few review sites made their usual gaming tests and everyone was like “WOW YOU NEED FAST RAM!!!”. Truth is, you will only notice gains in CPU limited situations (for games) which is almost never (unless you like running weird and suboptimal hardware configurations). 2133-3200MHz sees a bit of gains in regular and sensible game usage, and almost none after 3200MHz.
32GB right now it the sweet spot for general performance computing. Your money is best spent elsewhere.
Depends from the game if its boosting fps which doesnt seem to scale from 0 onwards, although there may be some unicorn out there
So with that 3200mhz CL14 stick, some game bumps that free 20fps from 70fps onwards, and other game gives 10fps from 45fps onwards
Nobody has really sorted this shit since Ryzen launch, which in fact was just confirmation that yeah it does affect after all
This is super complex thing to sort by value, I really dont even know how to think that
What I’m thinking is that I’ll get fastest ram if setup can run above 60fps
it’s fairly well known that ryzen likes fast memory. what wasn’t well known before @wendell put out his video just now is that dual rank (or 4 single-rank sticks instead of 2) can help via interleaving (which matches what i see in the real world with firestrike benchmarks on my 2700x vs other similar systems (crossfire vega 64, 2700x)). i.e., the clock penalty for running higher capacity or more DIMMs is somewhat offset by the performance gains from interleaving, outside of memory channel count.
Also, those “issues” ryzen has with slower or suboptimal memory configurations are only really seen at extreme situations like running 1080p (or lower) on a 1080ti.
I can hit 200 FPS (in 2560x1080 ultra-wide - i believe 200 is the frame-rate cap) at times with basically max settings in doom with my theoretically “sub optimal” non-b-die dual rank memory configuration. Thus, my advice is “don’t worry about it” (where “it” is the scenario of filling all 4 slots, or running dual-rank to get more memory and wearing a clock penalty to do so) unless you’re a total twitch gamer who wants 144 fps at low resolution. In which case, what are you doing with Ryzen anyway…?
