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Chrkeller said:

I have CL36 5600 ram, 32 gb.  With my new rig it defaulted to 4800.  Is this normal?  Worth cranking to 5600?  I wasn't sure if I would notice real life improvements.

It will vary from game to game.
It will mostly effect the 1% lows, more so than that avg fps.

Low latency is good on memory, which is what "cranking it to 5600" would do (compaired to 4800).
You could then manually tighten the timings, if your confortable with tons of stress testing and stability finding.

Linus Tech Tips has a video about "does ram speed really matter (ddr5 edition)?"

In it he shows Cyberpunk 2077 going from 187fps -> 205fps (4800 cl40-> 5600 cl36) (about 10% avg. fps increase) (on a amd system)
The minimum fps (1% lows) go from 119fps -> 137fps (over 15%)

So yes.... you should load the right profile for your ram.
If not, your looking at about 10-15% "less" performance, and less stable fps while gaming.


Fast ram is esp good for competitive shooters, when you already run fast fps, and have a monitor that can work it.
Its less impactfull if your running something "heavy" graphically, at 4k, and your barely able to break say 60fps.
(granted, that close to 60fps, any gain is good, even if its smaller by %)

Also for some reason, amd systems seem to benefit more from ram speeds than intel ones.
However amd systems seem to not gain much of anything past the 6000-6400 speeds (currently).
While on Intel, gains are smaller, but you can keep cranking up past say DDR5 7800 speeds and still see small gains.

Last edited by JRPGfan - on 13 November 2023