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AMD: Windows 11 May Cause Performance Dips of Up to 15% on Ryzen CPUs
AMD: Windows 11 May Cause Performance Dips Of Up To 15% On Ryzen CPUs:
Wccftech reported a few days ago about known issues appearing after users have installed Microsoft's newest Windows 11 operating system—Oracle VirtualBox software and Cốc Cốc browser compatibility issues, as well as Intel networking issues. Today, AMD reported issues that their Windows 11 compatible AMD processors were having with performance while running certain applications after the new OS installation.
AMD urges users to stick with Windows 10 as a workaround, hotfix coming
[...] Known changes to performance affected areas such as
- Measured and functional L3 cache latency may increase by ~3X.
- UEFI CPPC2 ("preferred core") may not preferentially schedule threads on a processor's fastest core.
[...] To fix these issues, AMD and Microsoft have rolled out both updates to Windows 11, as well as software updates from AMD that will roll out over this month. Microsoft and AMD plan to update their separate knowledge bases with articles updating users with included version numbers and other information as they become available. AMD does state, that while these problems are happening, to continue to use a current supported version of Windows 10 instead of continuing utilizing Windows 11 until the problems have been actively concluded.
More details at AMD's Knowledge Base.
Intel Core i7-12700K 12 Core Alder Lake CPU-z Benchmark Leaks Out, Up to 45% Faster Than AMD Ryzen 7
Intel's Core i7-12700K Alder Lake CPU has been tested in the CPU-z benchmark and allegedly is up to 45% faster than the fastest 8 core CPUs based on Intel's Rocket Lake and AMD's Zen 3 processor lineups.
Intel Core i7-12700K Alder Lake 12 Core Up To 45% Faster Than Core i9-11900K & Ryzen 7 5800X In CPU-z Multi-Threaded Benchmark
The alleged CPU-z benchmark result has been tweeted by TUM_APISAK and shows the Intel Core i7-12700K scoring 800.2 points in the single-core and 9423.2 points in the multi-core benchmark tests. The Core i7-12700K is a 12 core chip but it should be positioned in the same price category as AMD Ryzen 7 5800X and Intel Core i7-11700K. Based on that, the performance improvement is huge for both single-core and multi-core tests.
In the single-core test, the Intel Core i7-12700K is around 17.3% faster than the Core i9-11900K, 24% faster than the Core i7-11700K, and 25% faster than the AMD Ryzen 7 5800X. In Multi-core tests, the Intel Core i7-12700K pushes on top with a 45% lead over the AMD Ryzen 7 5800X and Intel Core i9-11900K. Compared to its predecessor, the multi-core performance is improved by 50%. The CPU only loses to the AMD Ryzen 9 5900X which is a 12 core and 24 thread part and is around 2% faster than the Core i7-12700K.
(Score: 4, Insightful) by SomeGuy on Saturday October 09 2021, @12:17PM (7 children)
Windows 11 is a fucking joke.
A long, long, long time ago Microsoft could at least point to reasons why people should really want their new OSes. Even if many were bullshit and even undesirable, there was usually something under the hood that was some small improvement they could use as an excuse. Not any more. We have finally gotten to the point where their new hardware requirements are 100% artificial.
Meanwhile, Microsoft is dancing around about how "green" they are and how concerned they are about the environment, while making the entire planet throw out most of their existing computers and buying all new stuff.
(Score: 4, Insightful) by Marand on Saturday October 09 2021, @03:50PM (6 children)
I've seen a persistent trend of people saying the best thing so far about Windows 11 is WSLg, which gives you seamless installation and use of Linux applications via WSL2. Adds the icons to the appropriate places, has audio and GPU acceleration support, etc. so that to the end-user it's largely identical to using a native Windows application. I'm not surprised by this at all; I experimented with it on some secondary hardware using the Win10 insider preview (before 11 hit it) and it was really well done, with just about everything but Vulkan-based 3d applications working as expected (OpenGL was fine). I basically turned Windows 10 into a Linux distribution (Microsoft GNU/Windows, lol) for a bit by just installing and running basically everything through WSLg instead of native on a lark before wiping the drive again.
So, it actually does have a pretty strong selling point over Windows 10, it's just kind of sad that it's "You can run Linux programs on it seamlessly!" and not really surprising that Microsoft isn't hyping that up much. :)
(Score: 2) by takyon on Sunday October 10 2021, @12:51AM (1 child)
Microsoft® Windows® Linux® was never a meme, it was always THE PLAN.
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(Score: 3, Insightful) by Marand on Sunday October 10 2021, @11:57PM
I've been saying for years that it looked like they were moving toward some kind of unification, even if only to have an escape hatch for if they ever decide to get out of dealing with the OS and kernel. I wouldn't even mind that, I don't think; I'd be more likely to pay for some kind of officially supported, wine-like Windows userland than I would to use Windows itself on bare metal, even for free.
(Score: 2) by sjames on Sunday October 10 2021, @02:19AM (3 children)
If you run Windows 11 in a VM (you'll need a hacksaw to remove the compatibility check), you'll need to configure it to use WSL1. WSL2 won't run.
Source: a few lost hours last night.
(Score: 2) by Runaway1956 on Sunday October 10 2021, @06:17AM (1 child)
I use VBox and VMWare, on Linux. Both provide TPM, both can be optionally encrypted. And, no, I don't have a TPM chip on my machine, just an empty socket where one can be plugged in. In both cases, I've installed without any problems, then attacked the telemetry and other nonsense after installation.
I'm a little curious what virtualization you are using, and why you need a hacksaw.
Abortion is the number one killed of children in the United States.
(Score: 2) by sjames on Sunday October 10 2021, @07:42AM
QEMU/KVM. It didn't like the host CPU on my virtual host and I didn't want to mess with setting up a fake TPM.
The hacksaw is a powershell script you can run on an existing Win10 install (or a clone of one).
(Score: 2) by Marand on Monday October 11 2021, @12:06AM
That's not entirely accurate. If you're able to enable nested virtualisation with your hardware and software, it's possible to enable Hyper-V in a Windows VM and run VMs inside your VM, which should make WSL2 work as expected as well. Enabling Hyper-V using nested virt is also how some people are hiding their GPU passthrough configurations from games that have VM-detecting anti-cheat, because they have special-case exceptions for Hyper-V due to its use by things like Docker and WSL2, and the presence of the Hyper-V hypervisor OS obscures the presence of virtualisation "below" it. Though it has a performance impact in some cases, so it's not a silver-bullet solution there.
Using nested virt can be something of a problem at present because there are issues with nested virt on some kernels, especially with Ryzen CPUs, which is why I haven't been able to do it myself. Can't boot the Windows VM at all with nested virt enabled due to my CPU and kernel. :(
Though if you're running Windows in a VM already, there's not much need for WSL2 anyway. I have a Windows 10 VM using GPU passthrough and I keep WSL1 installed in it for convenience, but for anything GUI-based I have the host OS right there waiting so I've had no use for WSL2/WSLg.