higher input lag since switching to zen 2 (high speed test)
Re: higher input lag since switching to zen 2 (high speed te
Motherboard came and is functional, will do some testing soon
Re: higher input lag since switching to zen 2 (high speed te
Ryzen has higher input lag than Intel and there is little you can do about it. It's why I switched to a 9700K from a 2700 only a year later. I noticed the input lag right away after building my PC having been using Intel before. What you can do to mitigate the issue is to disable SMT.
Re: higher input lag since switching to zen 2 (high speed te
I did some testing with my old cpu and yes, I can definitely tell a difference. Not sure if it's due to amds architecture or this motherboards usb design in particular. I used this cpu with a b450 board before i bought an x570 board due to booting issues and I didn't notice any latency issues while using it. Might've been because I was busy trying to fix the booting issues all day instead of gaming.Calypto wrote:Ryzen has higher input lag than Intel and there is little you can do about it. It's why I switched to a 9700K from a 2700 only a year later. I noticed the input lag right away after building my PC having been using Intel before. What you can do to mitigate the issue is to disable SMT.
Re: higher input lag since switching to zen 2 (high speed te
Ryzen has higher memory latency and has CCXs is what it boils down to. For pure gaming and latency, Intel is vastly better.ko4 wrote:I did some testing with my old cpu and yes, I can definitely tell a difference. Not sure if it's due to amds architecture or this motherboards usb design in particular. I used this cpu with a b450 board before i bought an x570 board due to booting issues and I didn't notice any latency issues while using it. Might've been because I was busy trying to fix the booting issues all day instead of gaming.
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Re: higher input lag since switching to zen 2 (high speed test)
I don't see how Intel can be considered lower latency when we're talking microseconds - not milliseconds... Meanwhile for the rest of the components that are increasing latency a lot we are talking milliseconds (especially input devices & display).
I do wonder how AMD's new memory sharing architecture between GPU & CPU might decrease latency, though.
I do wonder how AMD's new memory sharing architecture between GPU & CPU might decrease latency, though.
Re: higher input lag since switching to zen 2 (high speed test)
I have to agree and this was essentially debunked by Gamers Nexus. Regardless, Ryzen can be an incredible challenge to fine tune. 3933 1:1 completely stable all around in every single benchmark. CPU, memory, all of it. One title in particular I’d see 200 FPS drops. Coming full circle, it was the memory *and likely a beta bios. Instead of an all core OC on my 5950X (didn’t have this issue on my 5900 but bios wouldn’t allow the memory to be stretched). I opted to stay with Beta Bios (AGESA 1.2.0.0) and just tuned every CPU. By undervolting each CPU, I hit over 5ghz on almost across the board though I do have 2 weaker cpus. I ended up just staying screw it, literally not worth the time or hassle and stuck it @ 3800 CL14 1t and if I had to guess, despite not throwing errors in memtest with one title in particular (not one I’d seen anywhere else period) it took care of it. I believe the memory was maybe being temperamental with heat but not in a way that would throw a memtest error. The final result ended up being, wow you can pass every test but the real world one is sketchy. More importantly though, I hit boss mode multi core R20 scores while maintaining high single core scores and not a single WHEA error. The alternative was 46.75 all core OC but I find the PBO2 optimization much better, just literally dependent on a per chip basis and time consuming.life_at_1ms wrote: ↑13 Feb 2021, 06:19I don't see how Intel can be considered lower latency when we're talking microseconds - not milliseconds... Meanwhile for the rest of the components that are increasing latency a lot we are talking milliseconds (especially input devices & display).
I do wonder how AMD's new memory sharing architecture between GPU & CPU might decrease latency, though.
Are you mentioning AMD’s Rage? This is a PCIe 4.0 spec not exclusive to AMD. I am definitely interested to see REBAR when Nvidia brings this for their GPUs this month I believe. Is there something else AMD has in the pipe?
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Re: higher input lag since switching to zen 2 (high speed test)
I'm very interested in this topic in general. My AMD 3800X memory latency was around 62~63ns with 1:1 1900/3800. My AMD 5800X can get as low as 52.9ns with single rank 1:1 1900/3800. From the little bit that I've seen Intel systems are around ? mid 40ns. Correct me if I am wrong. The last intel system I used was a X58 rig I used up until the Ryzen 3k series came out so I don't have a fair comparison. I almost went with a 10850k for my second build but went AMD instead. So unfortunately I can't give my experience between the two.