Intel Core Ultra 7 255HX vs Intel Processor U300
We compared two laptop CPUs: Intel Core Ultra 7 255HX with 20 cores 2.4GHz and Intel Processor U300 with 5 cores 1.2GHz . 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 2 years late
Better graphics card performance
Higher specification of memory (6400 vs 5200)
Larger memory bandwidth (102.4GB/s vs 76.8GB/s)
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (2.4GHz vs 1.2GHz)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (3nm vs 10nm)
Intel Processor U300 's Advantages
Lower TDP (15W vs 55W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255HX
+29%
2030
Intel Processor U300
1571
Cinebench R23 Multi Core
Intel Core Ultra 7 255HX
+424%
25611
Intel Processor U300
4883
Geekbench 6 Single Core
Intel Core Ultra 7 255HX
+43%
3102
Intel Processor U300
2156
Geekbench 6 Multi Core
Intel Core Ultra 7 255HX
+211%
15879
Intel Processor U300
5096
General Parameters
Jan 2025
Release Date
Jan 2023
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Raptor Lake
255HX
Processor Number
U300
FCBGA-2114
Socket
BGA-1744
Arc Graphics (4-Cores)
Integrated Graphics
UHD Graphics (48EU)
Ultra 7 (Arrow Lake)
Generation
-
Package
3 nm
Manufacturing Process
10 nm
45-55 W
Power Consumption
12-15 W
160 W
Max Turbo Power Consumption
55 W
105 °C
Peak Operating Temperature
100 °C
Intel
Foundry
-
CPU Performance
8
Performance Cores
1
8
Performance Core Threads
2
2.4 GHz
Performance Core Base Frequency
1.2 GHz
5.2 GHz
Performance Core Turbo Frequency
4.4 GHz
12
Efficiency Cores
4
12
Efficiency Core Threads
4
1.8 GHz
Efficiency Core Base Frequency
0.9 GHz
4.5 GHz
Efficiency Core Turbo Frequency
3.3 GHz
20
Total Core Count
5
20
Total Thread Count
6
100 MHz
Bus Frequency
100 MHz
24
Multiplier
12
112 K per core
L1 Cache
80 K per core
2 MB per core
L2 Cache
1280 K per core
30 MB shared
L3 Cache
8 MB shared
Yes
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR5-6400
Memory Types
DDR5-5200,DDR4-3200,LPDDR5-5200,LPDDR5x-5200,LPDDR4x-4267
192 GB
Max Memory Size
96 GB
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
76.8 GB/s
Yes
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
400 MHz
1850 MHz
GPU Max Dynamic Frequency
1100 MHz
512
Shader Units
384
32
Texture Units
24
16
Raster Operation Units
12
64
Execution Units
48
14
Power Consumption
15
1.9 TFLOPS
Graphics Performance
0.8 TFLOPS
Miscellaneous
5.0
PCIe Version
4.0
24
PCIe Lanes
20
