Intel Core i5 8600K vs Intel Core Ultra 7 255H
CPU · Specs Compare
General Parameters
Release Date
Oct 2017
Jan 2025
Manufacturer
Intel
Intel
Type
Desktop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Coffee Lake
Arrow Lake
Processor Number
i5-8600K
255H
Integrated Graphics
UHD Graphics 630
Arc Graphics 140T
Package
Manufacturing Process
14 nm
3 nm
Socket
LGA-1151
FCBGA-2049
Power Consumption
95 W
20-28 W
Peak Operating Temperature
100 °C
110 °C
Max Turbo Power Consumption
—
115 W
CPU Performance
Performance Cores
6
6
Performance Core Threads
6
6
Performance Core Base Frequency
3.6 GHz
2.0 GHz
Performance Core Turbo Frequency
4.3 GHz
5.1 GHz
Total Core Count
6
16
Total Thread Count
6
16
Bus Frequency
100 MHz
100 MHz
Multiplier
36x
20
L1 Cache
64 K per core
112 K per core
L2 Cache
256 K per core
2 MB per core
L3 Cache
9 MB shared
24 MB shared
Unlocked Multiplier
Yes
No
Efficiency Cores
—
10
Efficiency Core Threads
—
10
Efficiency Core Base Frequency
—
1.5 GHz
Efficiency Core Turbo Frequency
—
4.4 GHz
Memory Parameters
Memory Types
DDR4-2666
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Max Memory Size
128 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
41.6 GB/s
—
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
350 MHz
—
GPU Max Dynamic Frequency
1150 MHz
2250 MHz
Shader Units
192
—
Texture Units
24
—
Raster Operation Units
3
—
Execution Units
24
—
Power Consumption
15 W
—
Max Resolution
4096x2304 - 60 Hz
—
Miscellaneous
PCIe Version
3.0
5.0
PCIe Lanes
16
28
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
—
Benchmark
Cinebench R23
1,201
2,029
Cinebench R23
6,612
20,521
Geekbench 6
1,649
2,823
Geekbench 5
1,163
—
Geekbench 6
6,050
15,662
Geekbench 5
5,367
—
Passmark CPU
2,603
—
Passmark CPU
10,201
—
Cinebench 2024
—
115
Cinebench 2024
—
1,102
Blender
—
278
▲ Specs Compare
Data sourced from official specifications and benchmark tests.