Intel Core Ultra 7 255HX vs Intel Core i9 14900K
CPU · Specs Compare
General Parameters
Release Date
Jan 2025
Oct 2023
Manufacturer
Intel
Intel
Type
Laptop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Raptor Lake Refresh
Processor Number
255HX
i9-14900K
Integrated Graphics
Arc Graphics (4-Cores)
UHD Graphics 770
Generation
Ultra 7 (Arrow Lake)
Core i9 (Raptor Lake Refresh)
Package
Manufacturing Process
3 nm
10 nm
Socket
FCBGA-2114
LGA-1700
Power Consumption
45-55 W
125 W
Max Turbo Power Consumption
160 W
253 W
Peak Operating Temperature
105 °C
100°C
Foundry
Intel
Intel
Package
FC-LGA18V
FC-LGA16A
Die Size
—
257 mm²
CPU Performance
Performance Cores
8
8
Performance Core Threads
8
16
Performance Core Base Frequency
2.4 GHz
3.2 GHz
Performance Core Turbo Frequency
5.2 GHz
6 GHz
Efficiency Cores
12
16
Efficiency Core Threads
12
16
Efficiency Core Base Frequency
1.8 GHz
2.4 GHz
Efficiency Core Turbo Frequency
4.5 GHz
4.4 GHz
Total Core Count
20
24
Total Thread Count
20
32
Bus Frequency
100 MHz
100 MHz
Multiplier
24
32x
L1 Cache
112 K per core
80 K per core
L2 Cache
2 MB per core
2 MB per core
L3 Cache
30 MB shared
36 MB shared
Unlocked Multiplier
Yes
Yes
SMP
1
1
Memory Parameters
Memory Types
DDR5-6400
DDR5-5600, DDR4-3200
Max Memory Size
192 GB
192 GB
Max Memory Channels
2
2
Max Memory Bandwidth
102.4 GB/s
89.6 GB/s
ECC Memory Support
Yes
Yes
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
300 MHz
GPU Max Dynamic Frequency
1850 MHz
1650 MHz
Shader Units
512
256
Texture Units
32
16
Raster Operation Units
16
8
Execution Units
64
32
Power Consumption
14
15 W
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
24
20
Benchmark
Cinebench R23
2,030
2,358
Cinebench R23
25,611
38,497
Geekbench 6
3,102
3,169
Geekbench 6
15,879
22,637
Cinebench 2024
132
136
Cinebench 2024
1,590
2,130
Blender
—
671
Passmark CPU
—
4,770
Passmark CPU
—
61,120
▲ Specs Compare
Data sourced from official specifications and benchmark tests.