i9-11900KB vs i9-10900KF

VS

Aggregate performance score

Core i9-10900KF
2020
10 cores / 20 threads, 125 Watt
14.71
Core i9-11900KB
2021
8 cores / 16 threads, 65 Watt
14.97
+1.8%

Core i9-11900KB outperforms Core i9-10900KF by a minimal 2% based on our aggregate benchmark results.

Primary details

Comparing Core i9-10900KF and Core i9-11900KB processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking507491
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation15.0117.86
Market segmentDesktop processorDesktop processor
Power efficiency10.7321.00
Architecture codenameComet Lake (2020)Tiger Lake-H (2021)
Release date30 April 2020 (4 years ago)May 2021 (3 years ago)
Launch price (MSRP)$509$539

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-11900KB has 19% better value for money than i9-10900KF.

Detailed specifications

Core i9-10900KF and Core i9-11900KB basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores10 (Deca-Core)8 (Octa-Core)
Threads2016
Base clock speed3.7 GHz3.3 GHz
Boost clock speed5.2 GHz4.9 GHz
Bus rate8 GT/s8 GT/s
L1 cache64 KB (per core)80K (per core)
L2 cache256 KB (per core)1.25 MB (per core)
L3 cache20 MB (shared)24 MB (shared)
Chip lithography14 nm10 nm SuperFin
Die sizeno data190 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility+-
Unlocked multiplier++

Compatibility

Information on Core i9-10900KF and Core i9-11900KB compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11
SocketFCLGA1200FCBGA1787
Power consumption (TDP)125 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-10900KF and Core i9-11900KB. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology2.0no data
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Turbo Boost Max 3.0++
Deep Learning Boost-+

Security technologies

Core i9-10900KF and Core i9-11900KB technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Key++
Identity Protection++
SGXYes with Intel® MEYes with Intel® ME
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-10900KF and Core i9-11900KB are enumerated here.

VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-10900KF and Core i9-11900KB. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2933DDR4
Maximum memory size128 GB128 GB
Max memory channels22
Maximum memory bandwidth45.8 GB/s51.2 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AIntel® UHD Graphics for 11th Gen Intel® Processors
Quick Sync Video-+
Graphics max frequencyno data1.45 GHz
Execution Unitsno data32

Graphics interfaces

Available interfaces and connections of Core i9-10900KF and Core i9-11900KB integrated GPUs.

Number of displays supportedno data4

Graphics image quality

Maximum display resolutions supported by Core i9-10900KF and Core i9-11900KB integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@60Hz
Max resolution over eDPno data4096 x 2304@60Hz
Max resolution over DisplayPortno data7680x4320@60Hz

Graphics API support

APIs supported by Core i9-10900KF and Core i9-11900KB integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.6

Peripherals

Specifications and connection of peripherals supported by Core i9-10900KF and Core i9-11900KB.

PCIe version3.04.0
PCI Express lanes1620

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i9-10900KF 14.71
i9-11900KB 14.97
+1.8%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i9-10900KF 22518
i9-11900KB 22917
+1.8%

Gaming performance

Pros & cons summary


Performance score 14.71 14.97
Physical cores 10 8
Threads 20 16
Chip lithography 14 nm 10 nm
Power consumption (TDP) 125 Watt 65 Watt

i9-10900KF has 25% more physical cores and 25% more threads.

i9-11900KB, on the other hand, has a 1.8% higher aggregate performance score, a 40% more advanced lithography process, and 92.3% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i9-10900KF and Core i9-11900KB.


Should you still have questions on choice between Core i9-10900KF and Core i9-11900KB, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i9-10900KF
Core i9-10900KF
Intel Core i9-11900KB
Core i9-11900KB

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Community ratings

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Questions & comments

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