Product Compare

Intel Core Ultra 7 251HX vs Intel Core Ultra 7 165U

	CPU Intel Core Ultra 7 251HX	CPU Intel Core Ultra 7 165U
General Parameters
Release Date	Apr 2026	Dec 2023
Manufacturer	Intel	Intel
Type	Laptop	Laptop
Instruction Set	x86-64	x86-64
Core Architecture	Arrow Lake	Meteor Lake
Processor Number	251HX	165U
Integrated Graphics	Arc Graphics (4-Cores)	Arc Graphics (4-Cores)
Generation		Ultra 7 (Meteor Lake)
Package
Manufacturing Process	3 nm	7 nm
Socket	FCBGA-2114	FCBGA-2049
Power Consumption	45-55 W	12-57 W
Max Turbo Power Consumption	160 W
Peak Operating Temperature	105 °C	110°C
Foundry		Intel
Package		FC-BGA
CPU Performance
Performance Cores	6	2
Performance Core Threads	6	4
Performance Core Base Frequency	2.9 GHz	1.7 GHz
Performance Core Turbo Frequency	5.1 GHz	4.9 GHz
Efficiency Cores	12	10
Efficiency Core Threads	12	10
Efficiency Core Base Frequency	2.5 GHz	1.2 GHz
Efficiency Core Turbo Frequency	4.5 GHz	3.8 GHz
Total Core Count	18	12
Total Thread Count	18	14
Bus Frequency	100 MHz	100 MHz
Multiplier	29	17x
L1 Cache	192 K per core	112 K per core
L2 Cache	2 MB per core	2 MB per core
L3 Cache	30 MB shared	12 MB shared
Unlocked Multiplier	Yes	No
SMP		1
Memory Parameters
Memory Types	DDR5-6400	LPDDR5-7467, LPDDR5x-7467, DDR5-5600
Max Memory Size	256 GB	96 GB
Max Memory Channels	2	2
Max Memory Bandwidth	102.4 GB/s	120 GB/s
ECC Memory Support	No	No
Graphics Card Parameters
Integrated Graphics	true	true
GPU Base Frequency	300 MHz
GPU Max Dynamic Frequency	1800 MHz	2000 MHz
Shader Units	512	64
Texture Units	32	4
Raster Operation Units	16	2
Execution Units	64	4
Power Consumption	14
Max Resolution		7680x4320 - 60 Hz
Miscellaneous
Official Website	Official Link ↗	Official Link ↗
PCIe Version	5.0	4.0
PCIe Lanes	24	20
Benchmarks
Geekbench 6 Single Core	2940	2384
Geekbench 6 Multi Core	15262	9763