Intel Core Ultra 7 255H 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
255H
—
Integrated Graphics
Arc Graphics 140T
Intel Xe3 Graphics (1 Xe)
Generation
—
Core 3 (Wildcat Lake)
Package
Manufacturing Process
3 nm
3 nm
Socket
FCBGA-2049
Intel BGA 1516
Power Consumption
20-28 W
15 W
Max Turbo Power Consumption
115 W
—
Peak Operating Temperature
110 °C
100°C
Foundry
—
Intel
Package
—
FC-BGA
CPU Performance
Performance Cores
6
2
Performance Core Threads
6
4
Performance Core Base Frequency
2.0 GHz
1.5 GHz
Performance Core Turbo Frequency
5.1 GHz
4.3 GHz
Efficiency Cores
10
4
Efficiency Core Threads
10
4
Efficiency Core Base Frequency
1.5 GHz
1400 MHz
Efficiency Core Turbo Frequency
4.4 GHz
3.3 GHz
Total Core Count
16
6
Total Thread Count
16
6
Bus Frequency
100 MHz
100 MHz
Multiplier
20
15.0
L1 Cache
112 K per core
192 KB
L2 Cache
2 MB per core
2.5 MB
L3 Cache
24 MB shared
6 MB shared
Unlocked Multiplier
No
No
SMP
—
1
Memory Parameters
Memory Types
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
DDR5-6400, LPDDR5-6400X-7467
Max Memory Size
128 GB
64 GB
Max Memory Channels
2
1
ECC Memory Support
No
No
Max Memory Bandwidth
—
59.7 GB/s
Graphics Card Parameters
Integrated Graphics
true
—
GPU Max Dynamic Frequency
2250 MHz
—
Miscellaneous
PCIe Version
5.0
4
PCIe Lanes
28
6
Benchmark
Cinebench R23
2,029
—
Cinebench R23
20,521
—
Geekbench 6
2,823
—
Geekbench 6
15,662
—
Cinebench 2024
115
—
Cinebench 2024
1,102
—
Blender
278
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.