Intel Core i9 11900K vs Intel Core Ultra 7 255HX
CPU · Specs Compare
General Parameters
Release Date
Mar 2021
Jan 2025
Manufacturer
Intel
Intel
Type
Desktop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Rocket Lake
Arrow Lake
Processor Number
i9-11900K
255HX
Integrated Graphics
UHD Graphics 750
Arc Graphics (4-Cores)
Generation
—
Ultra 7 (Arrow Lake)
Package
Manufacturing Process
14 nm
3 nm
Socket
LGA-1200
FCBGA-2114
Power Consumption
125 W
45-55 W
Peak Operating Temperature
100°C
105 °C
Max Turbo Power Consumption
—
160 W
Foundry
—
Intel
Package
—
FC-LGA18V
CPU Performance
Performance Cores
8
8
Performance Core Threads
16
8
Performance Core Base Frequency
3.5 GHz
2.4 GHz
Performance Core Turbo Frequency
5.3 GHz
5.2 GHz
Total Core Count
8
20
Total Thread Count
16
20
Bus Frequency
100 MHz
100 MHz
Multiplier
35x
24
L1 Cache
64 K per core
112 K per core
L2 Cache
512 K per core
2 MB per core
L3 Cache
16 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
Efficiency Cores
—
12
Efficiency Core Threads
—
12
Efficiency Core Base Frequency
—
1.8 GHz
Efficiency Core Turbo Frequency
—
4.5 GHz
SMP
—
1
Memory Parameters
Memory Types
DDR4-3200
DDR5-6400
Max Memory Size
128 GB
192 GB
Max Memory Channels
2
2
Max Memory Bandwidth
50 GB/s
102.4 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
1300 MHz
1850 MHz
Shader Units
256
512
Texture Units
64
32
Raster Operation Units
32
16
Execution Units
32
64
Power Consumption
15 W
14
Max Resolution
3840x2160 - 60 Hz
—
Miscellaneous
PCIe Version
4.0
5.0
PCIe Lanes
20
24
Benchmark
Cinebench R23
1,653
2,030
Cinebench R23
16,211
25,611
Geekbench 6
2,492
3,102
Geekbench 5
1,829
—
Geekbench 6
11,197
15,879
Geekbench 5
11,033
—
Blender
205
—
Passmark CPU
3,520
—
Passmark CPU
25,343
—
Cinebench 2024
—
132
Cinebench 2024
—
1,590
▲ Specs Compare
Data sourced from official specifications and benchmark tests.