Windows 11 Performance Issues on Ryzen Fixed by Updates from Microsoft and AMD

btarunr · Oct 22, 2021

Microsoft and AMD on Thursday released software updates that fix the two performance issues affecting AMD Ryzen processors with Windows 11. The two issues were abnormally high L3 cache latency, and a broken "Preferred Cores" system. The companies had assessed that the issues impact performance of Ryzen processors on Windows 11 by as much as 15%.

The two issues are fixed in separate methods. The L3 cache latency bug is improved through a Windows Update patch, which has been released now as an Update Preview (an Update Preview is not a "beta," but a software update released ahead of its designated "patch Tuesday"). The Update Preview is chronicled under KB5006746, and Windows 11 systems updated with this, get their OS build version set as "build 22000.282." The next update restores the Preferred Cores mechanism that leverages UEFI-CPPC2. This update comes in the form of an AMD Chipset Software update. You'll need to download and install both of the following:

DOWNLOAD: Windows 11 October 21, 2021 Update Preview KB5006746 | AMD Chipset Driver Software 3.10.08.506

View at TechPowerUp Main Site

Flanker · Oct 22, 2021

Well there goes the conspiracy theories

outpt · Oct 22, 2021

No bitching. What’s the world coming to. Oh the agony.

Zubasa · Oct 22, 2021

Flanker said:
Well there goes the conspiracy theories

Well the L3 bandwidth is still FUBAR.
From 1TB/s on Win10 to around 400GB/s on Win11 even after the patch.

InhaleOblivion · Oct 22, 2021

Zubasa said:
Well the L3 bandwidth is still FUBAR.
From 1TB/s on Win10 to around 400GB/s on Win11 even after the patch.
View attachment 221852

Appreciate the heads up. Still sticking with Win10 until this is fully resolved. Not a fan of performance regressions on hardware for the sake of new software.

Raiden85 · Oct 22, 2021

InhaleOblivion said:
Appreciate the heads up. Still sticking with Win10 until this is fully resolved. Not a fan of performance regressions on hardware for the sake of new software.

I've updated to the latest MS L3 patch and installed the latest AMD chipset drivers, speed is looking good here.

prtskg · Oct 22, 2021

Raiden85 said:
I've updated to the latest MS L3 patch and installed the latest AMD chipset drivers, speed is looking good here.

What was your latency in W10? Same, slightly better or slightly behind?

The King · Oct 22, 2021

Zubasa said:
Well the L3 bandwidth is still FUBAR.
From 1TB/s on Win10 to around 400GB/s on Win11 even after the patch.
View attachment 221852

Did you install the latest AMD chipset driver after installing the Windows 11 patch?

Raiden85 · Oct 22, 2021

prtskg said:
What was your latency in W10? Same, slightly better or slightly behind?

Pretty much identical on everything from what I remember. RAM latency has always been a bit crap but that was on 10 as well. Running 4x 16GB sticks so that probably doesn't help.

Zubasa · Oct 22, 2021

The King said:
Did you install the latest AMD chipset driver after installing the Windows 11 patch?

I did before hand, also Zen1 doesn't use CPPC and thus not affected by the other CPPC bug in the first place.
I find it ironic that the CPUs that Microsoft considers E-waste are the ones less affected.

Raiden85 · Oct 22, 2021

The King said:
Did you install the latest AMD chipset driver after installing the Windows 11 patch?

Installed the MS patch first and AMD driver straight after without rebooting after installing the MS patch.

SLObinger · Oct 22, 2021

I also applied both MSFT and AMD updates today for my 5900x on an X570 Asus Dark Hero MB. Latency is improved but still slightly above W10. W11 has definitely had an negatove impact on what I am able to achieve with PBO however. Much better results on W10. There is still some work to be done to make W11 a good idea for AMD.

R-T-B · Oct 22, 2021

Zubasa said:
Well the L3 bandwidth is still FUBAR.
From 1TB/s on Win10 to around 400GB/s on Win11 even after the patch.
View attachment 221852

Yeah it's far from fully resolved. Conspiracy unsolved.

The King · Oct 22, 2021

Zubasa said:
I did before hand, also Zen1 doesn't use CPPC and thus not affected by the other CPPC bug in the first place.
I find it ironic that the CPUs that Microsoft considers E-waste are the ones less affected.
View attachment 221857

I have a 1700X and noticed slightly improved L3 cache performance after installing the latest AMD chipset driver.
32ns on your 5950X is way off. My 1700X L3 is 10.3ns at 3.9Ghz.

Zubasa · Oct 22, 2021

The King said:
I have a 1700X and noticed slightly improved L3 cache performance after installing the latest AMD chipset driver.
32ns on your 5950X is way off. My 1700X L3 is 10.3ns at 3.9Ghz.

I think you miss read my post a bit, that result of the 5950X from the first post is not mine. It was just a pic from another review site.
Notice the CPU I am actually using is the 1950X and 10.2ns is inline with Zen1 latency, but both results are still slightly slower than Win10.

Mussels · Oct 22, 2021

Not reposting my scores yet again, but my results are all back to normal with the W11 update and the AMD driver installed.

Things are not *perfect* but they are massively better.

bug · Oct 22, 2021

Ha, I called bad driver for AMD! I was partially right.

halodies · Oct 22, 2021

My 5900x L3 numbers are back to Windows 10 time, the fix is working perfectly.

HD64G · Oct 22, 2021

bug said:
Ha, I called bad driver for AMD! I was partially right.

How was the AMD driver bad? The "broken one" works well on Win10.The only thing changed was the MS software between 10 and 11 that broke something and forced AMD to correct something that worked well on another cpu scheduler on the same OS kernel. Win11 is a major update to Win10. Don't forget that.

Metroid · Oct 22, 2021

It fixed for me. I can't see how it was on windows 10 though. This aida64 benchmark is on windows 11 after the fix, before the fix my 5900x could not even boot up to 4.6ghz, now at 4.9ghz no problem, cpu all default.

LocutusH · Oct 22, 2021

I dont see any improvement either.
4900HS laptop with Win11. Updated windows, and driver too.

Metroid · Oct 22, 2021

LocutusH said:
I dont see any improvement either.
4900HS laptop with Win11. Updated windows, and driver too.

I think this issue is only on zen 3 vermeer 5xxx series.

bug · Oct 22, 2021

HD64G said:
How was the AMD driver bad? The "broken one" works well on Win10.The only thing changed was the MS software between 10 and 11 that broke something and forced AMD to correct something that worked well on another cpu scheduler on the same OS kernel. Win11 is a major update to Win10. Don't forget that.

So you're telling me AMD simply repackaged their Win10 driver and called it day?
Something was obviously amiss, otherwise AMD didn't have to issue a new driver.

Raises the question of what kind of testing AMD (and Microsoft) did if they didn't notice that the preferred core detection wasn't working right. Makes you wonder what else they missed.

roberto888 · Oct 22, 2021

Before and after.

TomasK · Oct 22, 2021

The update seems to have fixed it for the most part, but I still have very slightly higher L3 latency and lower L3 transfer rates on Win 11 than I had on Win10.
The Win10 result is from May and is using older BIOS and AGESA but I don't think that's related. BIOS settings are all the same and I don't have anything overclocked, well, apart from PBO and XMP being enabled

Win10 (May, Agesa 1.2.0.2)

Win11 (yesterday, Agesa 1.2.0.3b)

System Name	RBMK-1000
Processor	AMD Ryzen 7 5700G
Motherboard	ASUS ROG Strix B450-E Gaming
Cooling	DeepCool Gammax L240 V2
Memory	2x 8GB G.Skill Sniper X
Video Card(s)	Palit GeForce RTX 2080 SUPER GameRock
Storage	Western Digital Black NVMe 512GB
Display(s)	BenQ 1440p 60 Hz 27-inch
Case	Corsair Carbide 100R
Audio Device(s)	ASUS SupremeFX S1220A
Power Supply	Cooler Master MWE Gold 650W
Mouse	ASUS ROG Strix Impact
Keyboard	Gamdias Hermes E2
Software	Windows 11 Pro

Processor	Intel Core i5 8400
Motherboard	Gigabyte Z370N-Wifi
Cooling	Silverstone AR05
Memory	Micron Crucial 16GB DDR4-2400
Video Card(s)	Gigabyte GTX1080 G1 Gaming 8G
Storage	Micron Crucial MX300 275GB
Display(s)	Dell U2415
Case	Silverstone RVZ02B
Power Supply	Silverstone SSR-SX550
Keyboard	Ducky One Red Switch
Software	Windows 10 Pro 1909

System Name	i'm done in
Processor	AMD 5950x
Motherboard	MSI MAG B550 Tomahawk
Cooling	Thermalright Peerless Assassin 120 SE
Memory	GSkil 64gb 3600 cl16
Video Card(s)	Power Color R7900xtx Hell Hound oh hell ya
Storage	2x wd sn770 2tb 1-4tb wd- hd 2x8tb wd hd actually 1 fire cuda
Display(s)	LG Ultra Gear 1440p 32" 165hz hdr monitor might go oled
Case	Corsair 4000D Air Flow
Power Supply	EVGA SuperNOVA 1000w G5 80+ Gold
Mouse	logitech and roccet wcord
Keyboard	logitech
Software	W10 forever

Processor	Core i7-12700k
Motherboard	Z690 Aero G D4
Cooling	Custom loop water, 3x 420 Rad
Video Card(s)	RX 7900 XTX Phantom Gaming
Storage	Plextor M10P 2TB
Display(s)	InnoCN 27M2V
Case	Thermaltake Level 20 XT
Audio Device(s)	Soundblaster AE-5 Plus
Power Supply	FSP Aurum PT 1200W
Software	Windows 11 Pro 64-bit

System Name	Mass Effect/Lost Ark
Processor	AMD Ryzen 5 5600X/AMD Ryzen 7 2700X
Motherboard	Asus ROG Strix X470-F Gaming/Asus ROG Strix B450-F Gaming II
Cooling	Noctua NH-D15S/AMD Wraith Max
Memory	G.Skill Ripjaws V Series 16GB (2x8GB) DDR4-3200/Corsair Vengeance RGB Pro 16GB (2x8GB) DDR4-3200
Video Card(s)	MSI AMD Radeon RX 6750 XT Mech 2x/MSI AMD Radeon RX 5700 XT Mech OC
Storage	Samsung 860 Evo 500GB 2.5" SSDs x2, WD Black 4TB 3.5" 7200RPM, Samsung 970 EVO 500GB 1TB NVME M.2
Display(s)	Acer XF270H 1920x1080p @ 144Hz
Case	Thermaltake Core P3 TG ATX Mid Tower/CoolerMaster MasterCase Pro 5
Audio Device(s)	SteelSeries Actis Nova 3 RGB
Power Supply	Cooler Master V850 80+ Gold/Corsair CX650M 80+ Bronze
Mouse	Thermaltake Level 10 M/Logitech G502
Keyboard	Corsair K70 RGB MK.2 Wired Gaming Edition/Steelseries Apex 3 RGB
Software	Windows 10 Pro OEM 64bit/Ubuntu 22.04.1 64bit

Windows 11 Performance Issues on Ryzen Fixed by Updates from Microsoft and AMD

btarunr

Editor & Senior Moderator

Flanker

outpt

Zubasa

InhaleOblivion

Raiden85

prtskg

The King

Raiden85

Zubasa

Raiden85

SLObinger

R-T-B

The King

Attachments

Zubasa

Mussels

Freshwater Moderator

bug

halodies

HD64G

Metroid

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LocutusH

Metroid

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roberto888

TomasK

Processor	Ryzen 7950X3D
Motherboard	Asus ROG Crosshair X670E Hero
Cooling	Corsair iCUE H150i ELITE LCD
Memory	64GB (2X 32GB) Corsair Dominator Platinum RGB DDR4 60000Mhz CL30
Video Card(s)	Zotac GeForce RTX 4090 AMP Extreme AIRO 24GB
Storage	WD SN850X 4TB NVMe / Samsung 870 QVO 8TB
Display(s)	Asus PG43UQ / Samsung 32" UJ590
Case	Phanteks Evolv X
Power Supply	Corsair AX1600i
Mouse	Logitech MX Master 3
Keyboard	Corsair K95 RGB Platinum
Software	Windows 11 Pro 24H2

Processor	AMD R7 1700X @ 4100Mhz
Motherboard	MSI B450M MORTAR MAX (MS-7B89)
Cooling	Phanteks PH-TC14PE
Memory	Crucial Technology 16GB DR (DDR4-3600) - C9BLM:045M:E BL16G36C16U4W.M16FE1 X2 @ CL14
Video Card(s)	XFX RX480 GTR 8GB @ 1408Mhz (AMD Auto OC)
Storage	Samsung SSD 850 EVO 250GB
Display(s)	Acer KG271 1080p @ 81Hz
Power Supply	SuperFlower Leadex II 750W 80+ Gold
Keyboard	Redragon Devarajas RGB
Software	Microsoft Windows 10 (10.0) Professional 64-bit
Benchmark Scores	https://valid.x86.fr/mvvj3a

System Name	Pioneer
Processor	Ryzen R9 9950X
Motherboard	GIGABYTE Aorus Elite X670 AX
Cooling	Noctua NH-D15 + A whole lotta Sunon and Corsair Maglev blower fans...
Memory	64GB (4x 16GB) G.Skill Flare X5 @ DDR5-6000 CL30
Video Card(s)	XFX RX 7900 XTX Speedster Merc 310
Storage	Intel 905p Optane 960GB boot, +2x Crucial P5 Plus 2TB PCIe 4.0 NVMe SSDs
Display(s)	55" LG 55" B9 OLED 4K Display
Case	Thermaltake Core X31
Audio Device(s)	TOSLINK->Schiit Modi MB->Asgard 2 DAC Amp->AKG Pro K712 Headphones or HDMI->B9 OLED
Power Supply	FSP Hydro Ti Pro 850W
Mouse	Logitech G305 Lightspeed Wireless
Keyboard	WASD Code v3 with Cherry Green keyswitches + PBT DS keycaps
Software	Gentoo Linux x64 / Windows 11 Enterprise IoT 2024

System Name	Rainbow Sparkles (Power efficient, <350W gaming load)
Processor	Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard	Asus x570-F (BIOS Modded)
Cooling	Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory	2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s)	Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage	2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s)	Phillips 32 32M1N5800A (4k144), LG 32" (4K60) \| Gigabyte G32QC (2k165) \| Phillips 328m6fjrmb (2K144)
Case	Fractal Design R6
Audio Device(s)	Logitech G560 \| Corsair Void pro RGB \|Blue Yeti mic
Power Supply	Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse	Logitech G Pro wireless + Steelseries Prisma XL
Keyboard	Razer Huntsman TE ( Sexy white keycaps)
VR HMD	Oculus Rift S + Quest 2
Software	Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores	Nyooom.

Processor	Intel i5-12600k
Motherboard	Asus H670 TUF
Cooling	Arctic Freezer 34
Memory	2x16GB DDR4 3600 G.Skill Ripjaws V
Video Card(s)	EVGA GTX 1060 SC
Storage	500GB Samsung 970 EVO, 500GB Samsung 850 EVO, 1TB Crucial MX300 and 2TB Crucial MX500
Display(s)	Dell U3219Q + HP ZR24w
Case	Raijintek Thetis
Audio Device(s)	Audioquest Dragonfly Red :D
Power Supply	Seasonic 620W M12
Mouse	Logitech G502 Proteus Core
Keyboard	G.Skill KM780R
Software	Arch Linux + Win10

Processor	AMD Ryzen 5 5600@80W
Motherboard	MSI B550 Tomahawk
Cooling	ZALMAN CNPS9X OPTIMA
Memory	2*8GB PATRIOT PVS416G400C9K@3733MT_C16
Video Card(s)	Sapphire Radeon RX 6750 XT Pulse 12GB
Storage	Sandisk SSD 128GB, Kingston A2000 NVMe 1TB, Samsung F1 1TB, WD Black 10TB
Display(s)	AOC 27G2U/BK IPS 144Hz
Case	SHARKOON M25-W 7.1 BLACK
Audio Device(s)	Realtek 7.1 onboard
Power Supply	Seasonic Core GC 500W
Mouse	Sharkoon SHARK Force Black
Keyboard	Trust GXT280
Software	Win 7 Ultimate 64bit/Win 10 pro 64bit/Manjaro Linux

System Name	Ryzen shine, Mr Freeman
Processor	5900X
Motherboard	ASUS X570 Dark Hero
Cooling	Arctic Liquid Freezer II 360 ARGB
Memory	32GB TridentZ Neo 3600 CL14
Video Card(s)	3080TI FE with Alphacool Eiswolf AIO
Storage	2TB 970 EVO PLUS, 1TB 980
Display(s)	LG OLED 55CX
Case	O11D XL Black
Audio Device(s)	Xonar Essence STU, Mackie MR5+MR10S, HD598
Power Supply	Seasonic Prime Titanium 850W
Mouse	GPW
Keyboard	G815

System Name	ASUS Vivobook Pro 15
Processor	AMD® Ryzen™ 9 7940HS Processor 8C/16T 4.0 GHz (16M Cache, up to 5.25 GHz)
Cooling	Dual Fan 3 heatpipes
Memory	16GB LPDDR5X 7500MT/s CL20-16-19-37
Video Card(s)	NVIDIA® GeForce™ RTX 4060 8GB GDDR6 128-bit 3072 SM TGP 75W @ 105W
Storage	WD Black SN850X 2TB NVMe
Display(s)	15.6" FHD 144Hz (1920x1080) 16:9 IPS
Power Supply	200W
Keyboard	Backlit
Software	Windows 11 Home 64-bit

Processor	Ryzen 7 5800X
Motherboard	B550 Aorus Elite v2
Cooling	Arctic Liquid Freezer II 240 ARGB w/ Conductonaut
Memory	4x8 GB HyperX Fury 3600MHz
Video Card(s)	MSI RTX 3080 Ti Gaming X Trio
Storage	970 EVO 1TB, 970 EVO Plus 2TB
Display(s)	Omen 32q
Case	SilentiumPC Regnum RG6V EVO TG ARGB
Audio Device(s)	Topping D10s+L30, Emu Teak, AH-D5200&D2000, HD660S2, Focal Elegia, SR325x, 7Hz Zero:2, MDR-1AM2, etc
Power Supply	Corsair RM850
Mouse	Xtrfy M4
Keyboard	Alloy Origins 60
Software	Win11
Benchmark Scores	very high of course