Intel Core i9 14900KF vs Intel Core Ultra 7 255HX
CPU · Specs Compare
General Parameters
Release Date
Oct 2023
Jan 2025
Manufacturer
Intel
Intel
Type
Desktop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Raptor Lake Refresh
Arrow Lake
Processor Number
i9-14900KF
255HX
Integrated Graphics
No
Arc Graphics (4-Cores)
Generation
Core i9 (Raptor Lake Refresh)
Ultra 7 (Arrow Lake)
Package
Manufacturing Process
10 nm
3 nm
Socket
LGA-1700
FCBGA-2114
Power Consumption
125 W
45-55 W
Max Turbo Power Consumption
253 W
160 W
Peak Operating Temperature
100°C
105 °C
Foundry
Intel
Intel
Die Size
257 mm²
—
Package
FC-LGA16A
FC-LGA18V
CPU Performance
Performance Cores
8
8
Performance Core Threads
16
8
Performance Core Base Frequency
3.2 GHz
2.4 GHz
Performance Core Turbo Frequency
6 GHz
5.2 GHz
Efficiency Cores
16
12
Efficiency Core Threads
16
12
Efficiency Core Base Frequency
2.4 GHz
1.8 GHz
Efficiency Core Turbo Frequency
4.4 GHz
4.5 GHz
Total Core Count
24
20
Total Thread Count
32
20
Bus Frequency
100 MHz
100 MHz
Multiplier
32x
24
L1 Cache
80 K per core
112 K per core
L2 Cache
2 MB per core
2 MB per core
L3 Cache
36 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
SMP
1
1
Memory Parameters
Memory Types
DDR5-5600, DDR4-3200
DDR5-6400
Max Memory Size
192 GB
192 GB
Max Memory Channels
2
2
Max Memory Bandwidth
89.6 GB/s
102.4 GB/s
ECC Memory Support
Yes
Yes
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
20
24
Graphics Card Parameters
Integrated Graphics
—
true
GPU Base Frequency
—
300 MHz
GPU Max Dynamic Frequency
—
1850 MHz
Shader Units
—
512
Texture Units
—
32
Raster Operation Units
—
16
Execution Units
—
64
Power Consumption
—
14
Benchmark
Cinebench R23
2,358
2,030
Cinebench R23
38,497
25,611
Geekbench 6
3,176
3,102
Geekbench 6
22,411
15,879
Cinebench 2024
139
132
Cinebench 2024
2,177
1,590
Blender
670
—
Passmark CPU
4,722
—
Passmark CPU
60,232
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.