Intel Core i9-11900KB vs Intel Xeon Platinum 8253

Physical Specifications

Socket Intel BGA 1499 Intel Socket 3647
Foundry Intel Intel
Process size 10 nm 14 nm
Transistors unknown 8,000 million
Die size unknown unknown
Package FC-BGA1499 FC-LGA3647
tCaseMax 72°C
tJMax 100°C


Frequency 3.3 GHz 2.2 GHz
Turbo clock up to 5.3 GHz up to 3 GHz
Base clock 100 MHz 100 MHz
Multiplier 33.0x 22.0x
Multiplier unlocked Yes No
TDP 65 W 125 W

Architecture Details

Vertical Segment Mobile Server/Workstation
Production status Active unknown
Release date 2021 Dec 11th, 2018
Codename Tiger Lake-H Cascade Lake-SP
Generation Core i9 Xeon Platinum
Part unknown SRF93CD8069504194601
Memory support DDR4-3200 MHz DDR4
ECC memory No Yes
PCI Express Gen 4, 20 Lanes(CPU only)


Total Cores 8 16
Total Threads 16 32
SMP # CPUs 1 8
Integrated graphics UHD Graphics 750


Cache L1 96K (per core) 64K (per core)
Cache L2 1.25MB (per core) 1MB (per core)
Cache L3 24MB (shared) 22MB (shared)

Features & Technologies

AES-NI Yes Yes
AVX Yes Yes
AVX-512 Yes
AVX2 Yes Yes
BMI1 Yes Yes
BMI2 Yes Yes
Boost 3.0 Yes
EIST Yes Yes
F16C Yes Yes
FMA3 Yes Yes
HTT Yes Yes
Intel 64 Yes Yes
MMX Yes Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4.2 Yes Yes
SSSE3 Yes Yes
TXT Yes Yes
VT-d Yes Yes
VT-x Yes Yes
XD bit Yes Yes
vPro Yes
x8 SDDC Yes


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