Product Compare

Intel Core i3 1305U vs Intel Core Ultra 7 251HX

	CPU Intel Core i3 1305U	CPU Intel Core Ultra 7 251HX
General Parameters
Release Date	Jan 2023	Apr 2026
Manufacturer	Intel	Intel
Type	Laptop	Laptop
Instruction Set	x86-64	x86-64
Core Architecture	Raptor Lake	Arrow Lake
Processor Number	i3-1305U	251HX
Integrated Graphics	UHD Graphics (64EU)	Arc Graphics (4-Cores)
Package
Manufacturing Process	10 nm	3 nm
Socket	BGA-1744	FCBGA-2114
Power Consumption	12-15 W	45-55 W
Max Turbo Power Consumption	55 W	160 W
Peak Operating Temperature	100°C	105 °C
CPU Performance
Performance Cores	1	6
Performance Core Threads	2	6
Performance Core Base Frequency	1.6 GHz	2.9 GHz
Performance Core Turbo Frequency	4.5 GHz	5.1 GHz
Efficiency Cores	4	12
Efficiency Core Threads	4	12
Efficiency Core Base Frequency	1.3 GHz	2.5 GHz
Efficiency Core Turbo Frequency	3.3 GHz	4.5 GHz
Total Core Count	5	18
Total Thread Count	6	18
Bus Frequency	100 MHz	100 MHz
Multiplier	16x	29
L1 Cache	80 K per core	192 K per core
L2 Cache	1280 K per core	2 MB per core
L3 Cache	10 MB shared	30 MB shared
Unlocked Multiplier	No	Yes
Memory Parameters
Memory Types	DDR5-5200, DDR4-3200, LPDDR5-5200, LPDDR5x-5200, LPDDR4x-4267	DDR5-6400
Max Memory Size	64 GB	256 GB
Max Memory Channels	2	2
Max Memory Bandwidth	76.8 GB/s	102.4 GB/s
ECC Memory Support	No	No
Graphics Card Parameters
Integrated Graphics	true	true
GPU Base Frequency	300 MHz	300 MHz
GPU Max Dynamic Frequency	1250 MHz	1800 MHz
Shader Units	512	512
Texture Units	32	32
Raster Operation Units	16	16
Execution Units	64	64
Power Consumption	45 W	14
Miscellaneous
Official Website	Official Link ↗	Official Link ↗
PCIe Version	4.0	5.0
PCIe Lanes	20	24
Benchmarks
Geekbench 6 Single Core	1803	2940
Geekbench 6 Multi Core	3566	15262