EPYC 9275F vs i9-11900KB

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Primary details

Comparing Core i9-11900KB and EPYC 9275F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking491not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation17.86no data
Market segmentDesktop processorServer
Power efficiency21.00no data
Architecture codenameTiger Lake-H (2021)Turin (2024)
Release dateMay 2021 (3 years ago)10 October 2024 (recently)
Launch price (MSRP)$539$3,439

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-11900KB and EPYC 9275F 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 cores8 (Octa-Core)24 (Tetracosa-Core)
Threads1648
Base clock speed3.3 GHz4.1 GHz
Boost clock speed4.9 GHz4.8 GHz
Bus rate8 GT/sno data
L1 cache80K (per core)80 KB (per core)
L2 cache1.25 MB (per core)1 MB (per core)
L3 cache24 MB (shared)256 MB (shared)
Chip lithography10 nm SuperFin4 nm
Die size190 mm28x 70.6 mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data66,520 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on Core i9-11900KB and EPYC 9275F 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 configuration12
SocketFCBGA1787SP5
Power consumption (TDP)65 Watt320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-11900KB and EPYC 9275F. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2no data
AES-NI++
AVX++
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
Turbo Boost Max 3.0+no data
Precision Boost 2no data+
Deep Learning Boost+-

Security technologies

Core i9-11900KB and EPYC 9275F technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Secure Key+no data
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-11900KB and EPYC 9275F are enumerated here.

AMD-V-+
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-11900KB and EPYC 9275F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth51.2 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel® UHD Graphics for 11th Gen Intel® ProcessorsN/A
Quick Sync Video+-
Graphics max frequency1.45 GHzno data
Execution Units32no data

Graphics interfaces

Available interfaces and connections of Core i9-11900KB and EPYC 9275F integrated GPUs.

Number of displays supported4no data

Graphics image quality

Maximum display resolutions supported by Core i9-11900KB and EPYC 9275F integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@60Hzno data
Max resolution over eDP4096 x 2304@60Hzno data
Max resolution over DisplayPort7680x4320@60Hzno data

Graphics API support

APIs supported by Core i9-11900KB and EPYC 9275F integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.6no data

Peripherals

Specifications and connection of peripherals supported by Core i9-11900KB and EPYC 9275F.

PCIe version4.05.0
PCI Express lanes20128

Pros & cons summary


Physical cores 8 24
Threads 16 48
Chip lithography 10 nm 4 nm
Power consumption (TDP) 65 Watt 320 Watt

i9-11900KB has 392.3% lower power consumption.

EPYC 9275F, on the other hand, has 200% more physical cores and 200% more threads, and a 150% more advanced lithography process.

We couldn't decide between Core i9-11900KB and EPYC 9275F. We've got no test results to judge.

Note that Core i9-11900KB is a desktop processor while EPYC 9275F is a server/workstation one.


Should you still have questions on choice between Core i9-11900KB and EPYC 9275F, ask them in Comments section, and we shall answer.

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Intel Core i9-11900KB
Core i9-11900KB
AMD EPYC 9275F
EPYC 9275F

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