Blur Busters Forums

Hyote wrote: ↑

17 Feb 2025, 17:45

No, as with everything else the honeymoon phase goes away. Tighter timings with lower frequency used to give me faster feeling inputs but in reality I was doing worse in games. Underclocking can be worth it but only as long as the stability gain is worth the performance loss.

Slender wrote: ↑

18 Feb 2025, 21:27

yes, that's true. For some reason, the memory with default settings feels better.
What does xmp do?
xmp changes the memory frequency, timings and voltage.
In order to better understand the reason, let's take the memory 3600cl14-14-14-34 1.45v dr real 1n (SA 1.35v), and turn off xmp.
Without xmp, the memory takes the values ​​2133 cl15 1.2v (1.2v SA).
I go into the game and see a noticeable drop in fps, but expectedly better input. What could be the reason? Since the timings in my case do not matter (cl15 def vs cl14 xmp), the voltage and memory frequency remain. In order to exclude the frequency from the equation, i will take the default value of 2133 and change the timings to approximately match 3600cl14. For our memory, this will be 8-8-8-20 or 9-9-9-21 (both options work without errors). The voltage in this case remains 1.45v (1.35 SA).
Launch the game - the fps has increased, but the input has become the same as before.
The voltage remains.
I turned on the xmp profile and lowered the SA voltage to the default 1.20v. The memory worked without errors, but this did not improve input.
I lower the memory settings to the default 2133 cl15 1.2v and enter the game (to exclude placebo). And expectedly low fps and good input.
I increase the voltage of the default memory to 1.45 (sa 1.35) and observe the same problems as with xmp.

TN_fun wrote: ↑

19 Feb 2025, 15:54

Slender wrote: ↑

18 Feb 2025, 21:27

yes, that's true. For some reason, the memory with default settings feels better.
What does xmp do?
xmp changes the memory frequency, timings and voltage.
In order to better understand the reason, let's take the memory 3600cl14-14-14-34 1.45v dr real 1n (SA 1.35v), and turn off xmp.
Without xmp, the memory takes the values ​​2133 cl15 1.2v (1.2v SA).
I go into the game and see a noticeable drop in fps, but expectedly better input. What could be the reason? Since the timings in my case do not matter (cl15 def vs cl14 xmp), the voltage and memory frequency remain. In order to exclude the frequency from the equation, i will take the default value of 2133 and change the timings to approximately match 3600cl14. For our memory, this will be 8-8-8-20 or 9-9-9-21 (both options work without errors). The voltage in this case remains 1.45v (1.35 SA).
Launch the game - the fps has increased, but the input has become the same as before.
The voltage remains.
I turned on the xmp profile and lowered the SA voltage to the default 1.20v. The memory worked without errors, but this did not improve input.
I lower the memory settings to the default 2133 cl15 1.2v and enter the game (to exclude placebo). And expectedly low fps and good input.
I increase the voltage of the default memory to 1.45 (sa 1.35) and observe the same problems as with xmp.

So it turns out that voltage and timings make the input better. or just voltage?

How about undervolting the GPU? I notice that undervolting makes my games smoother. I can't say about reducing input lag, it seems to me that it remains the same. But the fact that undervolting makes my games smoother is 100% I checked several games. (these are only 1660s)

Reducing the voltage on the CPU seems to also improve the input and make games smoother. I specifically checked this in old games (quake live), so that reducing the frequency and voltage of the CPU does not affect the fps