Intel Core Ultra 5 250K Plus vs Intel Core i5 8400
CPU · Specs Compare
General Parameters
Release Date
Mar 2026
Oct 2017
Manufacturer
Intel
Intel
Type
Desktop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Coffee Lake
Processor Number
250K+
i5-8400
Integrated Graphics
Arc iGPU (4-Cores)
UHD Graphics 630
Package
Transistor Count
17.8 billions
—
Manufacturing Process
3 nm
14 nm
Socket
FCLGA-1851
LGA-1151
Power Consumption
125 W
65 W
Max Turbo Power Consumption
159 W
—
Peak Operating Temperature
105 °C
100 °C
CPU Performance
Performance Cores
6
6
Performance Core Threads
6
6
Performance Core Base Frequency
4.2 GHz
2.8 GHz
Performance Core Turbo Frequency
5.3 GHz
4 GHz
Efficiency Cores
12
—
Efficiency Core Threads
12
—
Efficiency Core Base Frequency
3.3 GHz
—
Efficiency Core Turbo Frequency
4.6 GHz
—
Total Core Count
18
6
Total Thread Count
18
6
Bus Frequency
100 MHz
100 MHz
Multiplier
42
28x
L1 Cache
192 K per core
64 K per core
L2 Cache
3 MB per core
256 K per core
L3 Cache
30 MB shared
9 MB shared
Unlocked Multiplier
Yes
No
Memory Parameters
Memory Types
DDR5-7200
DDR4-2666
Max Memory Bandwidth
115.2 GB/s
41.6 GB/s
ECC Memory Support
Yes
No
Max Memory Size
—
128 GB
Max Memory Channels
—
2
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
350 MHz
GPU Max Dynamic Frequency
1900 MHz
1050 MHz
Shader Units
512
192
Texture Units
32
24
Raster Operation Units
16
3
Execution Units
64
24
Power Consumption
14
15 W
Max Resolution
—
4096x2304 - 60 Hz
Miscellaneous
PCIe Version
5.0
3.0
PCIe Lanes
24
16
Extended Instruction Set
—
SSE4.1, SSE4.2, AVX-2
Benchmark
Cinebench R23
2,319
1,026
Cinebench R23
28,965
5,798
Geekbench 6
3,231
1,298
Geekbench 6
21,067
4,677
Cinebench 2024
141
—
Cinebench 2024
1,680
—
Cinebench 2026
7,413
—
Passmark CPU
4,904
2,387
Passmark CPU
52,031
9,214
Geekbench 5
—
1,032
Geekbench 5
—
4,611
Blender
—
83
▲ Specs Compare
Data sourced from official specifications and benchmark tests.