Home Comparison Intel Core i5 8400T vs Intel Core Ultra 9 285K

Intel Core i5 8400T vs Intel Core Ultra 9 285K

We compared two desktop CPUs: Intel Core i5 8400T with 6 cores 1.7GHz and Intel Core Ultra 9 285K with 24 cores 3.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 8400T 's Advantages
Lower TDP (35W vs 125W)
Intel Core Ultra 9 285K 's Advantages
Released 6 years and 6 months late
Better graphics card performance
Higher specification of memory (6400 vs 2666)
Larger memory bandwidth (102.4GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (3.7GHz vs 1.7GHz)
Larger L3 cache size (36MB vs 9MB)
More modern manufacturing process (3nm vs 14nm)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i5 8400T
774
Intel Core Ultra 9 285K +199%
2318
Cinebench R23 Multi Core
Intel Core i5 8400T
3638
Intel Core Ultra 9 285K +1041%
41540
Geekbench 6 Single Core
Intel Core i5 8400T
1120
Intel Core Ultra 9 285K +201%
3377
Geekbench 6 Multi Core
Intel Core i5 8400T
3670
Intel Core Ultra 9 285K +529%
23094
Blender
Intel Core i5 8400T
35
Intel Core Ultra 9 285K +1577%
587
Passmark CPU Single Core
Intel Core i5 8400T
1917
Intel Core Ultra 9 285K +170%
5190
Passmark CPU Multi Core
Intel Core i5 8400T
7447
Intel Core Ultra 9 285K +783%
65816
VS

General Parameters

Apr 2018
Release Date
Oct 2024
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Arrow Lake
i5-8400T
Processor Number
285K
LGA-1151
Socket
FCLGA-1851
UHD Graphics 630
Integrated Graphics
Arc Xe2 (Arrow Lake-S)
-
Generation
Ultra 9(Arrow Lake)

Package

14 nm
Manufacturing Process
3 nm
35 W
Power Consumption
125 W
-
Max Turbo Power Consumption
250 W
100 °C
Peak Operating Temperature
105 °C
-
Foundry
TSMC

CPU Performance

6
Performance Cores
8
6
Performance Core Threads
8
1.7 GHz
Performance Core Base Frequency
3.7 GHz
3.3 GHz
Performance Core Turbo Frequency
5.5 GHz
-
Efficiency Cores
16
-
Efficiency Core Threads
16
-
Efficiency Core Base Frequency
3.2 GHz
-
Efficiency Core Turbo Frequency
4.6 GHz
6
Total Core Count
24
6
Total Thread Count
24
100 MHz
Bus Frequency
100 MHz
17x
Multiplier
37
64 K per core
L1 Cache
112 K per core
256 K per core
L2 Cache
3 MB per core
9 MB shared
L3 Cache
36 MB shared
No
Unlocked Multiplier
Yes
-
SMP
1

Memory Parameters

DDR4-2666
Memory Types
DDR5-6400
128 GB
Max Memory Size
192 GB
2
Max Memory Channels
2
41.6 GB/s
Max Memory Bandwidth
102.4 GB/s
No
ECC Memory Support
Yes

Graphics Card Parameters

true
Integrated Graphics
true
350 MHz
GPU Base Frequency
300 MHz
1050 MHz
GPU Max Dynamic Frequency
2000 MHz
192
Shader Units
512
24
Texture Units
16
3
Raster Operation Units
8
24
Execution Units
64
15 W
Power Consumption
-
4096x2304 - 60 Hz
Max Resolution
-
0.38 TFLOPS
Graphics Performance
2.05 TFLOPS

Miscellaneous

3.0
PCIe Version
5.0
16
PCIe Lanes
24
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-

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