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Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 12 Jul 2020, 01:44
by MaxTendency
As far as my understanding goes:
1. Higher clock will lower input delay in every cpu , amd or intel doesnt matter.
2. Even at same clock speed intel (up to 10th gen atleast, since 11th gen might be scuffed) will still be faster than amd due to not having time wasted communicating inter-ccx as well as from having less cycles wasted waiting for information to arrive due to lower ram latency. Not to mention its very unrealistic and borderline stupid to run an intel chip at 4.4 ghz when majority of 10th gen are capable of 5ghz (and +)
deama wrote: ↑11 Jul 2020, 13:59
Well, when I disabled SMT it reduced input lag, so what are you trying to say? I shouldn't believe my own eyes?
3. I dont think schizo is saying disabling smt/ht doesnt reduce input lag, but rather that games don't use max bandwidth so the loaded latency on max bandwidth isnt a realistic measure. The reduced input delay by disabling SMT isnt necessarily coming from lower loaded ram latency.
"Simply put, SMT doubles the number of registers, but there is still only one execution unit (what does the actual calculation). Since you have two sets of registers, the code will have to wait in the second register until the code from the first register finishes executing, which results in roughly 5-40% higher interrupt to DPC latency." -Calypto
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 12 Jul 2020, 14:34
by Unixko
what is SMT
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 12 Jul 2020, 16:05
by deama
Unixko wrote: ↑12 Jul 2020, 14:34
what is SMT
It's AMD's version of hyperthreading, or I guess to be more precise, AMD's label of hyperthreading.
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 13 Jul 2020, 15:45
by Brainlet
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 17 Jul 2020, 08:53
by dervu
I made comparison on Ryzen 2600 SMT OFF and ON in UEFI:
https://imgur.com/a/auiKv2B
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 17 Jul 2020, 08:59
by BTRY B 529th FA BN
.
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 17 Jul 2020, 14:43
by deama
BTRY B 529th FA BN wrote: ↑17 Jul 2020, 08:59
What are people doing to lower their interrupt to process, and interrupt to dpc latency on Ryzen chips?
Disabling SMT lowered it for me.
Lowering timings on ram or increasing mhz would lower it.
Increasing Ghz?
I guess that's about it, other than tweaking your system.
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 18 Jul 2020, 11:06
by Brainlet
Disable all power saving features in BIOS and OS for starters. By all, I mean all. There are a lot of layers and all of them add latency but only save you a couple bucks a year.
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 23 Jul 2020, 10:27
by wzrd
I changed from ryzen
[email protected] to i5-10400F + MSI H410M pro and felt the mouse feel much better in games. Therefore, I can say that zen2 is not suitable for games where speed and results are important. The only thing I can note in some MMORPGs (for example, Archeage) ryzen 3600 feels better due to the smaller number of statters (MMORPGs, where there are a lot of objects, are very fond of L3 cache). I hope in zen3 AMD will fix this problem, since I still have a good AM4 motherboard (I sold the processor).
PS sorry for my english and google translate.
Re: Is it true Ryzen has higher input lag than Intel? Is there conclusive data to prove this?
Posted: 23 Jul 2020, 13:52
by deama
wzrd wrote: ↑23 Jul 2020, 10:27
I changed from ryzen
[email protected] to i5-10400F + MSI H410M pro and felt the mouse feel much better in games. Therefore, I can say that zen2 is not suitable for games where speed and results are important. The only thing I can note in some MMORPGs (for example, Archeage) ryzen 3600 feels better due to the smaller number of statters (MMORPGs, where there are a lot of objects, are very fond of L3 cache). I hope in zen3 AMD will fix this problem, since I still have a good AM4 motherboard (I sold the processor).
PS sorry for my english and google translate.
What was the Ghz of your i5-10400F?