Windows 11 update makes nasty gaming bug with AMD CPUs even worse

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Windows 11 has problems with game slowdowns for those running AMD Ryzen processors, as was officially confirmed last week — but a new patch from Microsoft reportedly makes these issues worse.

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Unfortunately, the first Patch Tuesday update for Windows 11, which arrived yesterday, seems to have thrown more spanners in the works when it comes to a pair of bugs — including a Gremlin with L3 cache latency that’s too high. Is – further dragging down gaming performance. (Note that this patching was not supposed to fix anything gaming-related – but certainly didn’t expect the situation to get worse).

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That’s according to PowerUp, which the tech site is testing using the Ryzen 7 2700X CPU, which originally had an L3 cache latency of 10ns, was driven by a cache bug to 17ns, and now has Microsoft’s new cumulative Even worse after the update. imposed on. In fact, latency is now at 31.9ns, so the problem isn’t twice as bad (and triple the original latency).

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There is some good news in the report, however, according to a post on Reddit, AMD has given us the release dates for the patching of these two bugs.

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The L3 cache issue has already been resolved by Microsoft – we’ve actually seen references to the cure in dev builds of Windows 11 a month ago – and the fix is ​​scheduled to be deployed on October 19th.

We’ll wait a little longer to get in touch with the second issue, which is a glitch affecting some apps and games with UEFI CPPC 2, but a fix is ​​expected on October 21. Note that these are target dates, so it’s not inconceivable that last-minute problems might make up for delaying things a bit more.


Analysis: A painful problem made worse – but don’t rush or rush a solution, Microsoft

Seeing cache latency go even further is an alarming measure — quite dramatically, in fact — implemented after a round of Windows 11 patching, and apparently it’s leaving some AMD processor owners more concerned with their gaming performance. can also disappoint.

That said, this is only a test scenario of a particular Ryzen chip, and as a result we can’t stress it too much. Other people may not have this with their PCs, and there are actually a few posts on the Reddit thread linked above where gamers are saying that they aren’t experiencing any noticeable difference with their performance levels.

The level of effect is, of course, based on a whole load of variables, including not only the exact hardware configuration of the PC, but also the game being played (and what settings it’s running with). .

As AMD made clear in its initial admission of the cache latency problem, the big performance hit – a drop in frame rate of up to 15%, apparently – describes it as ‘outliers’ so most systems shouldn’t see Such sluggishness.

It’s likely that these big slowdowns are related to those running the likes of CS:GO 1080p and higher frame rates, with a higher refresh rate monitor for ultra-smooth gameplay (AMD specifically rates shooters as a worst-case scenario). exports). Of course, these are the kind of competitive gamers who are going to pull their hair out even on the slightest slowdown, let alone a drop that’s in the double digits.

Others more likely to see their performance level affected include 8-core Ryzen chips, or CPUs with even more cores (and TDPs of more than 65W), as AMD previously clarified that UEFI CPPC2 In case of bug.

The tech powerup makes an interesting point about the urgency of these improvements, not only because of the potentially high level of slowdown that a clear minority is facing, but because of the impending launch of Intel’s Elder Lake chips.

Intel’s new 12th-gen processors are expected to arrive in early November, and are set to work with Windows 11. That means reviewers will be benchmarking in that OS, and will do the same to compare and contrast with the AMD Ryzen 5000 processor. Display. So, if Windows 11 results kitters with Ryzen chips are being put off by these bugs, it’s easy to see why AMD is so eager to get the fix out there — preventing Alder Lake from looking even better. For (with rumors already indicating it’s a strong performer).

However, if Microsoft is under pressure to make a fix for the next week, well, we can only look at the track record of wonky Windows cumulative updates that fix some while breaking something else, and hope it turns out to be one. Such a scenario would not happen. Facing again later in October.

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