Intel Core Ultra 7 255HX vs Intel Pentium Gold 5405U
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Intel Pentium Gold 5405U with 2 cores 2.3GHz . 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 6 years late
Better graphics card performance
Higher specification of memory (6400 vs 2133)
Larger memory bandwidth (102.4GB/s vs 37.5GB/s)
Newer PCIe version (5.0 vs 2.0)
Higher base frequency (2.4GHz vs 2.3GHz)
Larger L3 cache size (30MB vs 2MB)
More modern manufacturing process (3nm vs 14nm)
Intel Pentium Gold 5405U 's Advantages
Lower TDP (15W vs 55W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255HX
+41%
2030
Intel Pentium Gold 5405U
1434
Cinebench R23 Multi Core
Intel Core Ultra 7 255HX
+1229%
25611
Intel Pentium Gold 5405U
1926
Geekbench 6 Single Core
Intel Core Ultra 7 255HX
+503%
3102
Intel Pentium Gold 5405U
514
Geekbench 6 Multi Core
Intel Core Ultra 7 255HX
+1489%
15879
Intel Pentium Gold 5405U
999
General Parameters
Jan 2025
Release Date
Jan 2019
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Whiskey Lake
255HX
Processor Number
5405U
FCBGA-2114
Socket
BGA-1528
Arc Graphics (4-Cores)
Integrated Graphics
UHD Graphics 610
Ultra 7 (Arrow Lake)
Generation
-
Package
3 nm
Manufacturing Process
14 nm
45-55 W
Power Consumption
15 W
160 W
Max Turbo Power Consumption
-
105 °C
Peak Operating Temperature
100 °C
Intel
Foundry
-
CPU Performance
8
Performance Cores
2
8
Performance Core Threads
4
2.4 GHz
Performance Core Base Frequency
2.3 GHz
5.2 GHz
Performance Core Turbo Frequency
-
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
2
20
Total Thread Count
4
100 MHz
Bus Frequency
-
24
Multiplier
-
112 K per core
L1 Cache
128 K per core
2 MB per core
L2 Cache
512 K per core
30 MB shared
L3 Cache
2 MB shared
Yes
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR5-6400
Memory Types
DDR4-2133, LPDDR3-1866
192 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
37.5 GB/s
Yes
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
200 MHz
1850 MHz
GPU Max Dynamic Frequency
950 MHz
512
Shader Units
96
32
Texture Units
12
16
Raster Operation Units
2
64
Execution Units
12
14
Power Consumption
5 W
-
Max Resolution
4096x2304 - 30 Hz
1.9 TFLOPS
Graphics Performance
0.06 TFLOPS
Miscellaneous
5.0
PCIe Version
2.0
24
PCIe Lanes
12
-
Extended Instruction Set
SSE4.1, SSE4.2
