Intel Core i9-11900KB processor review

Core i9-11900KB processor released by Intel; release date: Q2'21. At the time of release, the processor cost $539. The processor is designed for desktop-computers and based on Tiger Lake microarchitecture.

CPU is locked to prevent overclocking. Total number of cores - 8, threads - 16. Maximum CPU clock speed - 4.90 GHz. Maximum operating temperature - 100°C. Manufacturing process technology - 10 nm SuperFin. Cache size: L1 - 768 KB, L2 - 10 MB, L3 - 24 MB.

Supported memory types: Up to 3200 MT/s. Maximum memory size: 128 GB.

Supported socket types: FCBGA1787. Maximum number of processors in a configuration - 1. Power consumption (TDP): 65 Watt.

The processor has integrated graphics Intel UHD Graphics for 11th Gen Intel Processors.


Single thread mark
Top 1 CPU
This CPU
CPU mark
Top 1 CPU
This CPU
Name Value
PassMark - Single thread mark 3469
PassMark - CPU mark 24537

Integrated graphics – Intel UHD Graphics 750

Technical info

Boost clock speed 1300 MHz
Compute units 32
Core clock speed 300 MHz
Manufacturing process technology 14 nm
Peak Double Precision (FP64) Performance 166.4 GFLOPS (1:4)
Peak Half Precision (FP16) Performance 1331 GFLOPS (2:1)
Peak Single Precision (FP32) Performance 665.6 GFLOPS
Pipelines 256
Pixel fill rate 10.40 GPixel/s
Texture fill rate 20.80 GTexel/s
Thermal Design Power (TDP) 15 Watt

Games performance

Days Gone (2021)

Low, 1280x72022.70
Medium, 1920x108012.40
High, 1920x108010.80

Mass Effect Legendary Edition (2021)

Low, 1280x72057.20
Ultra, 1920x108026.60

Resident Evil Village (2021)

Low, 1280x72023.50
Medium, 1920x108013.40

Outriders (2021)

Low, 1280x72029.10
Medium, 1920x108023.10
High, 1920x108017.40
Ultra, 1920x108015.40

Hitman 3 (2021)

Low, 1280x72042.60
Medium, 1920x108016.00
High, 1920x108013.10
Ultra, 1920x108011.80

Cyberpunk 2077 (2020)

Low, 1280x72012.40

Immortals Fenyx Rising (2020)

Low, 1280x72018.00
Medium, 1920x108012.00
High, 1920x108010.00

Crysis Remastered (2020)

Low, 1280x72033.20
Medium, 1920x10809.67

Yakuza Like a Dragon (2020)

Low, 1280x72029.20
Medium, 1920x10809.72
High, 1920x10809.30

Assassin´s Creed Valhalla (2020)

Low, 1280x72020.00
Medium, 1920x108011.00
High, 1920x10809.00

Dirt 5 (2020)

Low, 1280x72023.80
Medium, 1920x10809.50
High, 1920x10807.70

FIFA 21 (2020)

Low, 1280x72099.50
Medium, 1920x108047.30
High, 1920x108042.70
Ultra, 1920x108031.70

Star Wars Squadrons (2020)

Low, 1280x72074.40
Medium, 1920x108028.00
High, 1920x108024.00
Ultra, 1920x108022.00

Mafia Definitive Edition (2020)

Low, 1280x72022.30
Medium, 1920x10809.84

Serious Sam 4 (2020)

Low, 1280x72058.60
Medium, 1920x108012.00
High, 1920x10808.06

Death Stranding (2020)

Low, 1280x72027.40
Medium, 1920x108015.10
High, 1920x108014.90

F1 2020 (2020)

Low, 1280x72053.20
Medium, 1920x108023.50
High, 1920x108017.00
Ultra, 1920x108010.70

Strange Brigade (2018)

Low, 1280x72051.10
Medium, 1920x108019.00
High, 1920x108015.00
Ultra, 1920x108013.20

Gears Tactics (2020)

Low, 1280x72065.90
Medium, 1920x108023.40
High, 1920x108014.00
Ultra, 1920x108010.00

Red Dead Redemption 2 (2019)

Low, 1280x72028.60
Medium, 1920x108013.40
High, 1920x10807.39

Star Wars Jedi Fallen Order (2019)

Medium, 1920x108015.00
High, 1920x108011.50

Borderlands 3 (2019)

Low, 1280x72026.10
Medium, 1920x108011.00
High, 1920x10806.29

Control (2019)

Low, 1280x72029.00
Medium, 1920x10808.40

Anno 1800 (2019)

Low, 1280x72042.00
Medium, 1920x108014.30
High, 1920x10808.56

The Division 2 (2019)

Low, 1280x72035.90
Medium, 1920x108014.10
High, 1920x108010.50

Metro Exodus (2019)

Low, 1280x72024.00
Medium, 1920x108010.60
High, 1920x10807.74

Apex Legends (2019)

Low, 1280x72059.00
Medium, 1920x108021.80
High, 1920x108015.70
Ultra, 1920x108015.70

Battlefield V (2018)

Low, 1280x72048.70
Medium, 1920x108018.40
High, 1920x108015.50
Ultra, 1920x108014.50

Far Cry 5 (2018)

Low, 1280x72031.00
Medium, 1920x108014.00
High, 1920x108013.00
Ultra, 1920x108012.00

X-Plane 11.11 (2018)

Low, 1280x72022.80
Medium, 1920x108017.30
High, 1920x108016.60

Final Fantasy XV Benchmark (2018)

Low, 1280x72023.00
Medium, 1920x108012.40
High, 1920x10808.46

Dota 2 Reborn (2015)

Low, 1280x72084.75
Medium, 1366x76861.65
High, 1920x108033.90
Ultra, 1920x108031.30

GTA V (2015)

Low, 1024x768108.00
Medium, 1366x76884.10
High, 1920x108018.10
Ultra, 1920x10807.43

Specifications (specs)


Architecture codename Tiger Lake
Launch date Q2'21
Launch price (MSRP) $539
Place in performance rating 54
Processor Number i9-11900KB
Series 11th Generation Intel Core i9 Processors
Status Launched
Vertical segment Desktop


64 bit support
Base frequency 3.30 GHz
Bus Speed 8 GT/s
L1 cache 768 KB
L2 cache 10 MB
L3 cache 24 MB
Manufacturing process technology 10 nm SuperFin
Maximum core temperature 100°C
Maximum frequency 4.90 GHz
Number of cores 8
Number of threads 16


Max memory channels 2
Maximum memory bandwidth 51.2 GB/s
Maximum memory size 128 GB
Supported memory types Up to 3200 MT/s


Execution Units 32
Graphics base frequency 350 MHz
Graphics max dynamic frequency 1.45 GHz
Intel® Quick Sync Video
Processor graphics Intel UHD Graphics for 11th Gen Intel Processors

Graphics interfaces

Number of displays supported 4

Graphics image quality

4K resolution support
Max resolution over DisplayPort 7680x4320@60Hz
Max resolution over eDP 4096 x 2304@60Hz

Graphics API support

DirectX 12
OpenGL 4.6


Configurable TDP-down 55 Watt
Configurable TDP-up 65 Watt
Max number of CPUs in a configuration 1
Package Size 50mm x 26.5mm
Sockets supported FCBGA1787
Thermal Design Power (TDP) 65 Watt


Max number of PCIe lanes 20
PCIe configurations Up to 1x16+1x4, 2x8+1x4, 1x8+3x4

Security & Reliability

Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot

Advanced Technologies

Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions Intel SSE4.1, Intel SSE4.2, Intel AVX2
Intel 64
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Speed Shift technology
Thermal Monitoring


Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)