Product Compare

Intel Core i7 1255U vs Intel Core i9 14900HX

	CPU Intel Core i7 1255U	CPU Intel Core i9 14900HX
General Parameters
Release Date	Feb 2022	Jan 2024
Manufacturer	Intel	Intel
Type	Laptop	Laptop
Instruction Set	x86-64	x86-64
Core Architecture	Alder Lake	Raptor Lake Refresh
Processor Number	i7-1255U	i9-14900HX
Integrated Graphics	Iris Xe Graphics (96EU)	UHD Graphics (32EU)
Package
Manufacturing Process	10 nm	10 nm
Socket	BGA-1744	BGA-1964
Power Consumption	12-15 W	45-55 W
Max Turbo Power Consumption	55 W	157 W
Peak Operating Temperature	100°C	100°C
CPU Performance
Performance Cores	2	8
Performance Core Threads	4	16
Performance Core Base Frequency	1.7 GHz	2.2 GHz
Performance Core Turbo Frequency	4.7 GHz	5.8 GHz
Efficiency Cores	8	16
Efficiency Core Threads	8	16
Efficiency Core Base Frequency	1.2 GHz	1.6 GHz
Efficiency Core Turbo Frequency	3.5 GHz	4.1 GHz
Total Core Count	10	24
Total Thread Count	12	32
Bus Frequency	100 MHz	100 MHz
Multiplier	17x	22x
L1 Cache	80 K per core	80 K per core
L2 Cache	1280 K per core	2 MB per core
L3 Cache	12 MB shared	36 MB shared
Unlocked Multiplier	No	Yes
Memory Parameters
Memory Types	DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267	DDR5-5600, DDR4-3200
Max Memory Size	64 GB	192 GB
Max Memory Channels	2	2
Max Memory Bandwidth	76.8 GB/s	89.6 GB/s
ECC Memory Support	No	Yes
Graphics Card Parameters
Integrated Graphics	true	true
GPU Base Frequency	300 MHz	300 MHz
GPU Max Dynamic Frequency	1250 MHz	1650 MHz
Shader Units	768	256
Texture Units	48	16
Raster Operation Units	24	8
Execution Units	96	32
Power Consumption	15 W	45 W
Miscellaneous
Official Website	Official Link ↗	Official Link ↗
PCIe Version	4.0	5.0
PCIe Lanes	20	20
Benchmarks
Cinebench R23 Single Core	1701	2176
Cinebench R23 Multi Core	8233	31592
Geekbench 6 Single Core	2248	3026
Geekbench 6 Multi Core	7162	18418
Blender	125	447
Passmark CPU Single Core	3308	4375
Passmark CPU Multi Core	13792	47406