Intel Core Ultra 7 255HX vs Intel Core 3 305
CPU Specs Compare
General Parameters
Release Date
Jan 2025
Apr 2026
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
-
Core Architecture
Arrow Lake
Wildcat Lake
Processor Number
255HX
-
Integrated Graphics
Arc Graphics (4-Cores)
Intel Xe3 Graphics (1 Xe)
Generation
Ultra 7 (Arrow Lake)
Core 3 (Wildcat Lake)
Package
Manufacturing Process
3 nm
3 nm
Socket
FCBGA-2114
Intel BGA 1516
Power Consumption
45-55 W
15 W
Max Turbo Power Consumption
160 W
-
Peak Operating Temperature
105 °C
100°C
Foundry
Intel
Intel
Package
FC-LGA18V
FC-BGA
CPU Performance
Performance Cores
8
2
Performance Core Threads
8
4
Performance Core Base Frequency
2.4 GHz
1.5 GHz
Performance Core Turbo Frequency
5.2 GHz
4.3 GHz
Efficiency Cores
12
4
Efficiency Core Threads
12
4
Efficiency Core Base Frequency
1.8 GHz
1400 MHz
Efficiency Core Turbo Frequency
4.5 GHz
3.3 GHz
Total Core Count
20
6
Total Thread Count
20
6
Bus Frequency
100 MHz
100 MHz
Multiplier
24
15.0
L1 Cache
112 K per core
192 KB
L2 Cache
2 MB per core
2.5 MB
L3 Cache
30 MB shared
6 MB shared
Unlocked Multiplier
Yes
No
SMP
1
1
Memory Parameters
Memory Types
DDR5-6400
DDR5-6400, LPDDR5-6400X-7467
Max Memory Size
192 GB
64 GB
Max Memory Channels
2
1
Max Memory Bandwidth
102.4 GB/s
59.7 GB/s
ECC Memory Support
Yes
No
Graphics Card Parameters
Integrated Graphics
true
-
GPU Base Frequency
300 MHz
-
GPU Max Dynamic Frequency
1850 MHz
-
Shader Units
512
-
Texture Units
32
-
Raster Operation Units
16
-
Execution Units
64
-
Power Consumption
14
-
📊 Benchmark
Cinebench R23
2,030
-
Cinebench R23
25,611
-
Geekbench 6
3,102
-
Geekbench 6
15,879
-
Cinebench 2024
132
-
Cinebench 2024
1,590
-