• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

Ryzen 7000 and 9000 see massive gains from Windows 11 24H2. Mostly.

Joxeon said:
I see this as the narrative being pushed that windows was broke but whose to say that MS weren’t making further software optimisations to enhance existing chips rather than fixing something that is broke.

When AMD make such optimisations it’s called fine wine and are congratulated yet MS are derided for not having these optimisations ready from the get go.
Click to expand...
Microsoft are rightly derided for it because this performance was already available on Linux. Windows is simply playing catch-up here. It's been the case for a long time that CPU-bound games run better on Linux. I remember World of Warcraft benchmarks from back in 2020 showing it running significantly better on Linux, long before Windows 11 was released. Wendell from Level1Techs also mentioned this in his recent video investigating Zen 5's performance. None of this is to say that gaming on Linux is better overall, as there are still very obvious downsides when it comes to compatibility and anti-cheat solutions, but for CPU-bound gaming it's been miles ahead for years. Even beyond the realm of gaming, CPU-reliant productivity benchmarks too are almost always in Linux's favour.

So yes, it's entirely fair to say that Microsoft very much are fixing something that was broken. This isn't extra performance being pulled out of thin air. It's performance that was always there and available on another operating system finally being made available to Windows users. Or at least partially so. I don't know how close this brings Windows to parity. There were some pretty big gaps to bridge (Shadow of the Tomb Raider ran 40% faster on Linux in Wendell's testing for example).
 
Last edited:
uscool said:
just did the update came up in windows update, interested to see what kind of increase on 5800x3d
Click to expand...
Zero improvement for my 3900X, but that was to be expected.

Some people are saying they are getting worse performance on 23H2 with the patch, so perhaps there's something else about 24H2 that's contributing to the performance increase.
 

Ryzen speed boosts get backported to Windows 11 23H2 with optional update

And it turns out that old Ryzen CPUs benefit almost as much as newer ones. See full article...
arstechnica.com arstechnica.com
tempt:
Rough short summary from my understanding so far:
  • Windows was purging some of the caches/buffers on the CPU, this was meant to mitigate/solve the Spectre/Meltdown problems that affected Intel CPUs. This has a negative impact on performance specially on Zen5 that has a larger branch prediction buffer and instruction window.
  • Running in super/hidden Admin mode disables/bypasses some of these security features hence giving more performance.
  • It appears that for Zen 3 to 5 those mitigations aren't necessary, or at least not in the way Windows was doing them, the new update addresses that.
Click to expand...
Sums up my suspicions
Meltdown/Spectre mitigation done differently or discarded

AMD Ohshit moment after admin mode difference discovered, and quick patch thrown together by MS.
All "branch prediction" story boils down to "do things less stupid"
 
I done a quick wee benchmark before and after installing KB5041587 .

Only Cyberpunk as I couln't be bothered running more or cinebench, etc.

Seen a small uplift, but nothing to shout about. More performance is always good tho!

Oh Windows 11 Education/Pro was fully up to date, Nvidia and AMD Chipset drivers updated last week. 5800X3D, 32GB @3600Mhz, ASUS 3080Ti TUF OC of some variety.

meh2.png

IMG_4726.JPEG


Ranging between .46% better to 3.67% better depending on highs, lows and averages.
 
Grim5 said:
14900k gains 20% performance with the new windows update in Cyberpunk




Click to expand...

Credit where due. That’s one of the better comparisons and explanations given of everything and in a succinct manner.

I just assumed any knowledgeable enthusiast already disabled vt-d and virtualisation in bios as part of standard tuning but clearly not lol
 
Robert896r1 said:
Credit where due. That’s one of the better comparisons and explanations given of everything and in a succinct manner.

I just assumed any knowledgeable enthusiast already disabled vt-d and virtualisation in bios as part of standard tuning but clearly not lol
Click to expand...
I thought these where disabled by default.

They where when I built my I7 9700K system with a Gigabyte Z390 Motherboard (Still using it now)
 
ED209 said:
I thought these where disabled by default.
Click to expand...

No, they are both enabled by default (VT-d and VMX) and they have differing features.

VMX is the one in question in this case, with VMX disabled you also disable VBS (Core Isolation).

However, unless you require virtualisation I would normally disable both.
 
Last edited:
Robert896r1 said:
Credit where due. That’s one of the better comparisons and explanations given of everything and in a succinct manner.

I just assumed any knowledgeable enthusiast already disabled vt-d and virtualisation in bios as part of standard tuning but clearly not lol
Click to expand...
Some of us prefer the extra security of VBS and will take the hit. I've seen very little difference on my 3900X in games and a tiny difference in Cinebench.

 
Last edited:
This was the same thing I found, with VBS enabled vs off I was only seeing margin of error differences, this was with memory integrity enabled as well. The performance hit with VBS is more visible on much older generation CPU's that lack Mode Based Execution Control (MBEC), if I recall the performance impact was up to something like 30%.

Extra performance is always nice so it will be interesting to see if it makes much difference to the games I play, but I'll hold of installing it until Patch Tuesday along with everyone else.
 
You must log in or register to reply here.
Back
Top Bottom