Home Comparison Intel Core Ultra 9 285HX vs Intel Core i5 8400H

Intel Core Ultra 9 285HX vs Intel Core i5 8400H

Intel Core Ultra 9 285HX
VS
Intel Core i5 8400H
Intel Core Ultra 9 285HX
Intel Core i5 8400H
We compared two laptop CPUs: Intel Core Ultra 9 285HX with 24 cores 2.8GHz and Intel Core i5 8400H with 4 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core Ultra 9 285HX 's Advantages
Released 6 years and 9 months late
Higher specification of memory (6400 vs 2666)
Larger memory bandwidth (102.4GB/s vs 41.8GB/s)
Newer PCIe version (5 vs 3.0)
Higher base frequency (2.8GHz vs 2.5GHz)
Larger L3 cache size (24MB vs 8MB)
More modern manufacturing process (3nm vs 14nm)
Intel Core i5 8400H 's Advantages
Lower TDP (45W vs 55W)

Score

Intel Core Ultra 9 285HX
VS
Intel Core i5 8400H

General Parameters

Jan 2025
Release Date
Apr 2018
Intel
Manufacturer
Intel
Laptop
Type
Laptop
-
Instruction Set
x86-64
Arrow Lake
Core Architecture
Coffee Lake
-
Processor Number
i5-8400H
Intel Socket 1851
Socket
BGA-1440
Arc Xe-LPG
Integrated Graphics
UHD Graphics 630
Ultra 9 (Arrow Lake)
Generation
-

Package

3 nm
Manufacturing Process
14 nm
17-55 W
Power Consumption
45 W
100 °C
Peak Operating Temperature
100 °C
Intel
Foundry
-

CPU Performance

8
Performance Cores
4
8
Performance Core Threads
8
2.8 GHz
Performance Core Base Frequency
2.5 GHz
5.5 GHz
Performance Core Turbo Frequency
4.2 GHz
16
Efficiency Cores
-
16
Efficiency Core Threads
-
2.1 GHz
Efficiency Core Base Frequency
-
4.6 GHz
Efficiency Core Turbo Frequency
-
24
Total Core Count
4
24
Total Thread Count
8
100 MHz
Bus Frequency
100 MHz
28
Multiplier
25x
112 KB per core
L1 Cache
64 K per core
23 MB
L2 Cache
256 K per core
24 MB shared
L3 Cache
8 MB shared
No
Unlocked Multiplier
No
1
SMP
-

Memory Parameters

DDR5-6400
Memory Types
DDR4-2666, LPDDR3-2133
256 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
102.4 GB/s
Max Memory Bandwidth
41.8 GB/s
Yes
ECC Memory Support
No

Graphics Card Parameters

true
Integrated Graphics
true
-
GPU Base Frequency
350 MHz
2000 MHz
GPU Max Dynamic Frequency
1100 MHz
-
Shader Units
192
-
Texture Units
24
-
Raster Operation Units
3
64
Execution Units
24
-
Power Consumption
15 W
-
Max Resolution
4096x2304 - 60 Hz
-
Graphics Performance
0.38 TFLOPS

Miscellaneous

Official Website
Intel Core i5 8400H
5
PCIe Version
3.0
PCIe Lanes
16
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2

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