Intel Core i9-11900KB vs Intel Core i9-11900F

Comparative analysis of Intel Core i9-11900KB and Intel Core i9-11900F processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score.

Intel Core i9-11900KB

Intel Core i9-11900F

Differences

Reasons to consider the Intel Core i9-11900KB

A newer manufacturing process allows for a more powerful, yet cooler running processor: 10 nm SuperFin vs 14 nm
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
5x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 1% better performance in PassMark - CPU mark: 22901 vs 22580

Specifications (specs)
Manufacturing process technology	10 nm SuperFin vs 14 nm
L1 cache	768 KB vs 512 KB
L2 cache	10 MB vs 2 MB
L3 cache	24 MB vs 16 MB
Benchmarks
PassMark - CPU mark	22901 vs 22580

Reasons to consider the Intel Core i9-11900F

Around 6% higher clock speed: 5.20 GHz vs 4.90 GHz
Around 4% better performance in PassMark - Single thread mark: 3421 vs 3304
Around 50% better performance in 3DMark Fire Strike - Physics Score: 11499 vs 7658

Specifications (specs)
Maximum frequency	5.20 GHz vs 4.90 GHz
Benchmarks
PassMark - Single thread mark	3421 vs 3304
3DMark Fire Strike - Physics Score	11499 vs 7658

Compare benchmarks

CPU 1: Intel Core i9-11900KB
CPU 2: Intel Core i9-11900F

PassMark - Single thread mark

CPU 1

CPU 2

3304

3421

PassMark - CPU mark

CPU 1

CPU 2

22901

22580

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

7658

11499

Name	Intel Core i9-11900KB	Intel Core i9-11900F
PassMark - Single thread mark	3304	3421
PassMark - CPU mark	22901	22580
3DMark Fire Strike - Physics Score	7658	11499

Compare specifications (specs)

	Intel Core i9-11900KB	Intel Core i9-11900F
Essentials
Architecture codename	Tiger Lake	Rocket Lake
Launch date	Q2'21	16 Mar 2021
Launch price (MSRP)	$539	$422 - $432
Place in performance rating	587	427
Processor Number	i9-11900KB	i9-11900F
Series	11th Generation Intel Core i9 Processors	11th Generation Intel Core i9 Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.30 GHz	2.50 GHz
Bus Speed	8 GT/s	8 GT/s
L1 cache	768 KB	512 KB
L2 cache	10 MB	2 MB
L3 cache	24 MB	16 MB
Manufacturing process technology	10 nm SuperFin	14 nm
Maximum core temperature	100°C	100°C
Maximum frequency	4.90 GHz	5.20 GHz
Number of cores	8	8
Number of threads	16	16
Memory
Max memory channels	2	2
Maximum memory bandwidth	51.2 GB/s	50 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	Up to 3200 MT/s	DDR4-3200
Graphics
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
Compatibility
Configurable TDP-down	55 Watt
Configurable TDP-up	65 Watt
Max number of CPUs in a configuration	1	1
Package Size	50mm x 26.5mm	37.5 mm x 37.5 mm
Sockets supported	FCBGA1787	FCLGA1200
Thermal Design Power (TDP)	65 Watt	65 Watt
Thermal Solution		PCG 2019C
Peripherals
Max number of PCIe lanes	20	20
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4
PCI Express revision		4.0
Scalability		1S Only
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 SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512
Intel 64
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Speed Shift technology
Thermal Monitoring
Intel® Stable Image Platform Program (SIPP)
Intel® Thermal Velocity Boost
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)