Windows 11 Performance Variation in Certain Applications on Compatible AMD Processors


  • Staff
Article Number PA-400

This documentation provides information on known performance impacts reported on Windows® 11 when running compatible AMD processors on certain applications.

Issue Description​

AMD and Microsoft have determined that compatible AMD processors may exhibit reduced performance in certain applications when running Windows® 11.

Known Performance Changes​

Impact​

Resolution​

Measured and functional L3 cache latency may increase by ~3X.
  • Applications sensitive to memory subsystem access time may be impacted.
  • Expected performance impact of 3-5% in affected applications, 10-15% outliers possible in games commonly used for eSports.
  • A Windows update is in development to address this issue with expected availability in October of 2021.
UEFI CPPC2 (“preferred core”) may not preferentially schedule threads on a processor’s fastest core.
  • Applications sensitive to the performance of one or a few CPU threads may exhibit reduced performance.
  • Performance impact may be more detectable in >8-core processors above 65W TDP.
  • A software update is in development to address this issue with expected availability in October of 2021.

Additional Information and Workaround​

AMD and Microsoft are actively investigating these known issues for resolution via software updates. This knowledge base article will be updated to include version numbers and delivery vehicle(s) when they are available. In the interim, customers using compatible AMD processors affected by these issues may continue to use a supported version of Windows® 10.


Source: https://www.amd.com/en/support/kb/faq/pa-400
 

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I don't know of I am the only one. But when running Corsair icue for my RGB lighting. My system will lag for a second. Until I end the task. It might have something to do with the CPU bug and Windows 11.
I haven't noticed that with mine but I'll keep an eye out and report back if I have any issues.
 

My Computer

System One

  • OS
    Windows 11 Home(Beta) - 23H2 - 22635.3350
    Computer type
    PC/Desktop
    Manufacturer/Model
    Banana Junior 5600- G Series
    CPU
    AMD Ryzen 5 5600G
    Motherboard
    Asus ROG Strix B550-F
    Memory
    G.SKILL Ripjaws V Series 64GB 4x16
    Graphics Card(s)
    NVIDIA GeForce GTX TITAN X
    Monitor(s) Displays
    Viotek 32", 28" ASUS VP28U
    Screen Resolution
    1080p
    Hard Drives
    Primary SAMSUNG 970 EVO Plus
    PSU
    EVGA BQ 700w 80+ Bronze
    Case
    Zalman i3 NEO
    Cooling
    ARCTIC Freezer 7 X
    Keyboard
    Corsair
    Mouse
    Amazon Generic with Cord
    Internet Speed
    Download: 295.11 mbps Upload: 65.35 mbps T-Mobile Internet
    Browser
    Firefox and Edge
    Antivirus
    MS - Defender
    Other Info
    Speakers: Klipsch ProMedia 2.1

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gbps Download and 35 Mbps Upload
    Browser
    Google Chrome
    Antivirus
    Microsoft Defender and Malwarebytes Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    HP Spectre x360 2in1 14-eu0098nr (2024)
    CPU
    Intel Core Ultra 7 155H 4.8 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Graphics card(s)
    Integrated Intel Arc
    Sound Card
    Poly Studio
    Monitor(s) Displays
    14" 2.8K OLED multitouch
    Screen Resolution
    2880 x 1800
    Hard Drives
    2 TB PCIe NVMe M.2 SSD
    Internet Speed
    Intel Wi-Fi 7 BE200 (2x2) and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender and Malwarebytes Premium
where is the update ??????

You can find at Windows 11 Hotfix Repository
But not all is fixed...
Some tests
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self build
    CPU
    5600x
    Motherboard
    Asus TUF Gaming B550-Plus
    Memory
    2x16 3200@3733 Crucial Ballistix
    Graphics Card(s)
    AMD Radeon RX 5600 XT (6128 MB)
    Monitor(s) Displays
    Acer XV280K
    Screen Resolution
    3840 x 2160
    Hard Drives
    Lots
    PSU
    Cooler Master MWE 650 Bronze
    Case
    Cooler Master HAF XB EVO
    Cooling
    Akasa Venom Medusa
    Keyboard
    E-BLUE K753
    Mouse
    Logitech G502SE
    Internet Speed
    OI Fibra 200 Mega
    Browser
    FireFox
    Antivirus
    none
i am not on insiders . L3 is still at 30 .
The fix only came out for insiders so far and the fix for everyone else may come out on the 21st of Oct.
 

My Computer

System One

  • OS
    Windows 11 Home(Beta) - 23H2 - 22635.3350
    Computer type
    PC/Desktop
    Manufacturer/Model
    Banana Junior 5600- G Series
    CPU
    AMD Ryzen 5 5600G
    Motherboard
    Asus ROG Strix B550-F
    Memory
    G.SKILL Ripjaws V Series 64GB 4x16
    Graphics Card(s)
    NVIDIA GeForce GTX TITAN X
    Monitor(s) Displays
    Viotek 32", 28" ASUS VP28U
    Screen Resolution
    1080p
    Hard Drives
    Primary SAMSUNG 970 EVO Plus
    PSU
    EVGA BQ 700w 80+ Bronze
    Case
    Zalman i3 NEO
    Cooling
    ARCTIC Freezer 7 X
    Keyboard
    Corsair
    Mouse
    Amazon Generic with Cord
    Internet Speed
    Download: 295.11 mbps Upload: 65.35 mbps T-Mobile Internet
    Browser
    Firefox and Edge
    Antivirus
    MS - Defender
    Other Info
    Speakers: Klipsch ProMedia 2.1
Fixed with today's update of W11 thru WU.
1634837731271.png
 

My Computer

System One

  • OS
    W10 and Insider Dev.+ Linux Mint
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home brewed
    CPU
    AMD Ryzen 9 7900x
    Motherboard
    ASROCK b650 PRO RS
    Memory
    2x8GB Kingston 6000MHz, Cl 32 @ 6200MHz Cl30
    Graphics Card(s)
    Gigabyte Rx 6600XT Gaming OC 8G Pro
    Sound Card
    MB, Realtek Ac1220p
    Monitor(s) Displays
    3 x 27"
    Screen Resolution
    1080p
    Hard Drives
    Kingston KC3000. 1TBSamsung 970 evo Plus 500GB, Crucial P1 NVMe 1TB, Lexar NVMe 2 TB, Silicon Power M.2 SATA 500GB
    PSU
    Seasonic 750W
    Case
    Custom Raidmax
    Cooling
    Arctic Liquid Freezer III 360mm
    Internet Speed
    20/19 mbps

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Ryzen 9 3900x
    Motherboard
    Asus Strix x570-E
    Memory
    Corsair Dominator Platinum 32Gb@3600MHz
    Graphics Card(s)
    Asus Strix 3080 Ti OC
    Monitor(s) Displays
    Samsung Odyssey G7 32" Curved Gaming Monitor, IIYAMA XUB2792QSU-W1 27"
    Screen Resolution
    2560x1440@240Hz, 2560x1440@70Hz
    Hard Drives
    Samsung 980 Pro 1 Tb (OS), Samsung 970 Pro 1 Tb (games), Samsung 860 Evo 1Tb (data), Samsung 860 Evo 4 Tb (games), Crucial MX500 1Tb (photos), Synology DS920+ 32 Tb NAS.
    PSU
    Corsair RM850x
    Case
    Corsair Crystal 680x
    Cooling
    Corsair H100i Se Platinum, 8 Corsair QL120/140 fans
    Keyboard
    Corsair K70 RGB Mk 2 SE Rapid Fire
    Mouse
    Corsair M65 Elite
    Internet Speed
    58/12 Mbps
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender + Malwarebytes
    Other Info
    Astro a50 Headset, Samsung Galaxy Tab S3 Tablet.
    Creative T6300 5.1 Speakers. TPM 2.0 Module.
  • Operating System
    Arch Linux KDE
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Ryzen 5600x
    Motherboard
    Asus Strix B550-E
    Memory
    Corsair Vengeance 32Gb@3200MHz
    Graphics card(s)
    Gigabyte RTX2070 Super Gaming OC
    Sound Card
    Creative Soundblaster AE-5
    Monitor(s) Displays
    Asus Strix XG43VQ 43" Ultrawide
    Screen Resolution
    3840x1200 @ 120Mhz
    Hard Drives
    Aorus Gen 4 NVMe 1 Tb (Windows Insider), Samsung 850 Pro 512Gb (data), Samsung 850 Evo 1Tb (backups), Samsung 860 Evo 2Tb (Home folder), Blu-ray player
    PSU
    Corsair RM750i
    Case
    Fractal Define R6
    Cooling
    Scythe Mugen 5 rev B and Corsair QL fans
    Mouse
    Glorious Model D
    Keyboard
    Corsair K70 RGB MK.2 Low Profile Rapidfire
    Internet Speed
    58/12 Mbps
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender + Malwarebytes
    Other Info
    Corsair Virtuoso Headset
Includes AMD Ryzen L3 cache fix.

 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gbps Download and 35 Mbps Upload
    Browser
    Google Chrome
    Antivirus
    Microsoft Defender and Malwarebytes Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    HP Spectre x360 2in1 14-eu0098nr (2024)
    CPU
    Intel Core Ultra 7 155H 4.8 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Graphics card(s)
    Integrated Intel Arc
    Sound Card
    Poly Studio
    Monitor(s) Displays
    14" 2.8K OLED multitouch
    Screen Resolution
    2880 x 1800
    Hard Drives
    2 TB PCIe NVMe M.2 SSD
    Internet Speed
    Intel Wi-Fi 7 BE200 (2x2) and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender and Malwarebytes Premium
Microsoft's suggested fix - stay with Windows 10!

 

My Computer

System One

  • OS
    Fedora 39 Silverblue and Rhino Linux . Kernels 6.6x and 6.7
    Computer type
    PC/Desktop
    Manufacturer/Model
    HomeBrew
    CPU
    AMD Ryzen 7 2700X Eight-Core Processo
    Motherboard
    Gigabyte
    Memory
    32GB
    Graphics Card(s)
    Nvidia
    Monitor(s) Displays
    Dell
    Hard Drives
    4 2 in Linuz raid0
    Keyboard
    Eluktronics
    Mouse
    Eluktronics
    Browser
    Firefox and Chromium
    Other Info
    Gnome 45
That Betanews (clickbait article) article is from October and there is already a patch out to fix the issue. LOL
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    AMD Ryzen 5 2600
    Motherboard
    Gigabyte
    Memory
    16 GB G-Skill
    Graphics Card(s)
    Nvidia 3060ti
    Monitor(s) Displays
    27 inch Westinghouse
    Screen Resolution
    1920X1080
    Hard Drives
    512 GB Samsung M2 980
    2 X 1TB Western Digital Black HDs
    Case
    Thermaltake
    Internet Speed
    250mbs

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