Intel Core Ultra 7 255HX vs Intel Core i9 11950H
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Intel Core i9 11950H with 8 cores 2.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 7 255HX 's Advantages
Released 3 years and 8 months late
Better graphics card performance
Higher specification of memory (6400 vs 3200)
Larger memory bandwidth (102.4GB/s vs 51.2GB/s)
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (30MB vs 24MB)
More modern manufacturing process (3nm vs 10nm)
Intel Core i9 11950H 's Advantages
Higher base frequency (2.6GHz vs 2.4GHz)
Lower TDP (45W vs 55W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255HX
+30%
2030
Intel Core i9 11950H
1550
Cinebench R23 Multi Core
Intel Core Ultra 7 255HX
+102%
25611
Intel Core i9 11950H
12649
Geekbench 6 Single Core
Intel Core Ultra 7 255HX
+54%
3102
Intel Core i9 11950H
2010
Geekbench 6 Multi Core
Intel Core Ultra 7 255HX
+98%
15879
Intel Core i9 11950H
7997
General Parameters
Jan 2025
Release Date
May 2021
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Tiger Lake H45
255HX
Processor Number
i9-11950H
FCBGA-2114
Socket
BGA-1787
Arc Graphics (4-Cores)
Integrated Graphics
UHD Graphics for 11th Gen (32 EU)
Ultra 7 (Arrow Lake)
Generation
-
Package
3 nm
Manufacturing Process
10 nm
45-55 W
Power Consumption
35-45 W
160 W
Max Turbo Power Consumption
-
105 °C
Peak Operating Temperature
100 °C
Intel
Foundry
-
CPU Performance
8
Performance Cores
8
8
Performance Core Threads
16
2.4 GHz
Performance Core Base Frequency
2.1-2.6 GHz
5.2 GHz
Performance Core Turbo Frequency
5 GHz
12
Efficiency Cores
-
12
Efficiency Core Threads
-
1.8 GHz
Efficiency Core Base Frequency
-
4.5 GHz
Efficiency Core Turbo Frequency
-
20
Total Core Count
8
20
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
24
Multiplier
21-26x
112 K per core
L1 Cache
96 K per core
2 MB per core
L2 Cache
1280 K per core
30 MB shared
L3 Cache
24 MB shared
Yes
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR5-6400
Memory Types
DDR4-3200
192 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
51.2 GB/s
Yes
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
350 MHz
1850 MHz
GPU Max Dynamic Frequency
1450 MHz
512
Shader Units
256
32
Texture Units
16
16
Raster Operation Units
8
64
Execution Units
32
14
Power Consumption
15 W
1.9 TFLOPS
Graphics Performance
0.742 TFLOPS
Miscellaneous
5.0
PCIe Version
4.0
24
PCIe Lanes
20
