Intel Core Ultra 7 255HX vs Intel Core i7 11390H
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Intel Core i7 11390H with 4 cores 2.9GHz . 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 7 months late
Better graphics card performance
Higher specification of memory (6400 vs 4267)
Larger memory bandwidth (102.4GB/s vs 51.2GB/s)
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (30MB vs 12MB)
More modern manufacturing process (3nm vs 10nm)
Intel Core i7 11390H 's Advantages
Higher base frequency (3.4GHz vs 2.4GHz)
Lower TDP (35W vs 55W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255HX
+26%
2030
Intel Core i7 11390H
1599
Cinebench R23 Multi Core
Intel Core Ultra 7 255HX
+302%
25611
Intel Core i7 11390H
6358
Geekbench 6 Single Core
Intel Core Ultra 7 255HX
+63%
3102
Intel Core i7 11390H
1895
Geekbench 6 Multi Core
Intel Core Ultra 7 255HX
+179%
15879
Intel Core i7 11390H
5672
General Parameters
Jan 2025
Release Date
Jun 2021
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Tiger Lake-H35
255HX
Processor Number
i7-11390H
FCBGA-2114
Socket
BGA-1449
Arc Graphics (4-Cores)
Integrated Graphics
Iris Xe Graphics G7 96EU
Ultra 7 (Arrow Lake)
Generation
-
Package
3 nm
Manufacturing Process
10 nm
45-55 W
Power Consumption
28-35 W
160 W
Max Turbo Power Consumption
-
105 °C
Peak Operating Temperature
100 °C
Intel
Foundry
-
CPU Performance
8
Performance Cores
4
8
Performance Core Threads
8
2.4 GHz
Performance Core Base Frequency
2.9-3.4 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
4
20
Total Thread Count
8
100 MHz
Bus Frequency
100 MHz
24
Multiplier
29-34x
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
12 MB shared
Yes
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR5-6400
Memory Types
DDR4-3200, LPDDR4x-4267
192 GB
Max Memory Size
64 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
300 MHz
1850 MHz
GPU Max Dynamic Frequency
1400 MHz
512
Shader Units
768
32
Texture Units
48
16
Raster Operation Units
24
64
Execution Units
96
14
Power Consumption
15 W
1.9 TFLOPS
Graphics Performance
1.69 TFLOPS
Miscellaneous
5.0
PCIe Version
4.0
24
PCIe Lanes
16
