Product Compare

Intel Core i9 9920X vs Intel Core Ultra 7 251HX

	CPU Intel Core i9 9920X	CPU Intel Core Ultra 7 251HX
General Parameters
Release Date	Oct 2018	Apr 2026
Manufacturer	Intel	Intel
Type	Desktop	Laptop
Instruction Set	x86-64	x86-64
Core Architecture	Skylake	Arrow Lake
Processor Number	i9-9920X	251HX
Integrated Graphics	N/A	Arc Graphics (4-Cores)
Package
Manufacturing Process	14 nm	3 nm
Socket	LGA-2066	FCBGA-2114
Power Consumption	165 W	45-55 W
Peak Operating Temperature	92 °C	105 °C
Max Turbo Power Consumption		160 W
CPU Performance
Performance Cores	12	6
Performance Core Threads	24	6
Performance Core Base Frequency	3.5 GHz	2.9 GHz
Performance Core Turbo Frequency	4.4 GHz	5.1 GHz
Total Core Count	12	18
Total Thread Count	24	18
Bus Frequency	100 MHz	100 MHz
Multiplier	35x	29
L1 Cache	64 K per core	192 K per core
L2 Cache	1 MB per core	2 MB per core
L3 Cache	19 MB shared	30 MB shared
Unlocked Multiplier	Yes	Yes
Efficiency Cores		12
Efficiency Core Threads		12
Efficiency Core Base Frequency		2.5 GHz
Efficiency Core Turbo Frequency		4.5 GHz
Memory Parameters
Memory Types	DDR4-2666	DDR5-6400
Max Memory Size	128 GB	256 GB
Max Memory Channels	4	2
Max Memory Bandwidth	85 GB/s	102.4 GB/s
ECC Memory Support	No	No
Miscellaneous
Official Website	Official Link ↗	Official Link ↗
PCIe Version	3.0	5.0
PCIe Lanes	44	24
Extended Instruction Set	SSE4.1, SSE4.2, AVX-2, AVX-512
Graphics Card Parameters
Integrated Graphics		true
GPU Base Frequency		300 MHz
GPU Max Dynamic Frequency		1800 MHz
Shader Units		512
Texture Units		32
Raster Operation Units		16
Execution Units		64
Power Consumption		14
Benchmarks
Geekbench 6 Single Core	1389	2940
Geekbench 6 Multi Core	3027	15262