Intel Core i9 11900K vs Intel Core Ultra 7 255H
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
255H
Integrated Graphics
UHD Graphics 750
Arc Graphics 140T
Package
Manufacturing Process
14 nm
3 nm
Socket
LGA-1200
FCBGA-2049
Power Consumption
125 W
20-28 W
Peak Operating Temperature
100°C
110 °C
Max Turbo Power Consumption
-
115 W
CPU Performance
Performance Cores
8
6
Performance Core Threads
16
6
Performance Core Base Frequency
3.5 GHz
2.0 GHz
Performance Core Turbo Frequency
5.3 GHz
5.1 GHz
Total Core Count
8
16
Total Thread Count
16
16
Bus Frequency
100 MHz
100 MHz
Multiplier
35x
20
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
24 MB shared
Unlocked Multiplier
Yes
No
Efficiency Cores
-
10
Efficiency Core Threads
-
10
Efficiency Core Base Frequency
-
1.5 GHz
Efficiency Core Turbo Frequency
-
4.4 GHz
Memory Parameters
Memory Types
DDR4-3200
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Max Memory Size
128 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
50 GB/s
-
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
-
GPU Max Dynamic Frequency
1300 MHz
2250 MHz
Shader Units
256
-
Texture Units
64
-
Raster Operation Units
32
-
Execution Units
32
-
Power Consumption
15 W
-
Max Resolution
3840x2160 - 60 Hz
-
📊 Benchmark
Cinebench R23
1,653
2,029
Cinebench R23
16,211
20,521
Geekbench 6
2,492
2,823
Geekbench 5
1,829
-
Geekbench 6
11,197
15,662
Geekbench 5
11,033
-
Blender
205
278
Passmark CPU
3,520
-
Passmark CPU
25,343
-
Cinebench 2024
-
115
Cinebench 2024
-
1,102