Intel Core i9-11900KB vs Intel Core i9-9900X

Table of Contents

Physical Specifications

Socket Intel BGA 1499 Intel Socket 2066
Foundry Intel Intel
Process size 10 nm 14 nm
Transistors unknown unknown
Die size unknown unknown
Package FC-BGA1499 FC-LGA2066
tCaseMax 72°C 72°C
tJMax 100°C

Performance

Frequency 3.3 GHz 3.5 GHz
Turbo clock up to 5.3 GHz up to 4.5 GHz
Base clock 100 MHz 100 MHz
Multiplier 33.0x 35.0x
Multiplier unlocked Yes Yes
TDP 65 W 165 W

Architecture Details

Vertical Segment Mobile Desktop
Production status Active Active
Release date 2021 Oct 19th, 2018
Codename Tiger Lake-H Skylake-X
Generation Core i9 Core i9
Part unknown BX80673I99900XBXC80673I99900XCD8067304126200SREZ7
Memory support DDR4-3200 MHz DDR4 Quad-channel
ECC memory No No
PCI Express Gen 4, 20 Lanes(CPU only) Gen 3

Cores

Total Cores 8 10
Total Threads 16 20
SMP # CPUs 1 1
Integrated graphics UHD Graphics 750

Cache

Cache L1 96K (per core) 64K (per core)
Cache L2 1.25MB (per core) 1MB (per core)
Cache L3 24MB (shared) 19.25MB (shared)

Features & Technologies

AES-NI Yes Yes
AVX Yes Yes
AVX-512 Yes Yes
AVX2 Yes Yes
BMI1 Yes Yes
BMI2 Yes Yes
Boost 2.0 Yes
Boost 3.0 Yes Yes
CLMUL Yes 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
TSX Yes Yes
TXT Yes Yes
VT-d Yes Yes
VT-x Yes Yes
XD bit Yes Yes

Notes

Notes This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking.

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