Intel Core i9 9900T vs Intel Core i5 8400

VS

We compared two desktop CPUs: Intel Core i9 9900T with 8 cores 2.1GHz and Intel Core i5 8400 with 6 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9900T 's Advantages

Released 1 years and 6 months late

Larger L3 cache size (16MB vs 9MB)

Lower TDP (35W vs 65W)

Intel Core i5 8400 's Advantages

Higher base frequency (2.8GHz vs 2.1GHz)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9900T +15%

1201

Intel Core i5 8400

1038

Cinebench R23 Multi Core

Intel Core i9 9900T +72%

10187

Intel Core i5 8400

5893

Geekbench 6 Single Core

Intel Core i9 9900T +12%

1461

Intel Core i5 8400

1298

Geekbench 6 Multi Core

Intel Core i9 9900T +44%

6776

Intel Core i5 8400

4677

Blender

Intel Core i9 9900T +28%

104

Intel Core i5 8400

81

Geekbench 5 Single Core

Intel Core i9 9900T +11%

1150

Intel Core i5 8400

1032

Geekbench 5 Multi Core

Intel Core i9 9900T +46%

6752

Intel Core i5 8400

4611

Passmark CPU Single Core

Intel Core i9 9900T +3%

2470

Intel Core i5 8400

2387

Passmark CPU Multi Core

Intel Core i9 9900T +46%

13472

Intel Core i5 8400

9214

Intel Core i9 9900T

VS

Intel Core i5 8400

General Parameters

Apr 2019

Release Date

Oct 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Coffee Lake

i9-9900T

Processor Number

i5-8400

LGA-1151

Socket

LGA-1151

UHD Graphics 630

Integrated Graphics

UHD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

35 W

Power Consumption

65 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

6

2.1 GHz

Performance Core Base Frequency

2.8 GHz

4.4 GHz

Performance Core Turbo Frequency

4 GHz

8

Total Core Count

6

16

Total Thread Count

6

100 MHz

Bus Frequency

100 MHz

21x

Multiplier

28x

32 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

16 MB shared

L3 Cache

9 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

41.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

350 MHz

1200 MHz

GPU Max Dynamic Frequency

1050 MHz

192

Shader Units

192

24

Texture Units

24

3

Raster Operation Units

3

24

Execution Units

24

15 W

Power Consumption

15 W

4096x2304 - 60 Hz

Max Resolution

4096x2304 - 60 Hz

0.38 TFLOPS

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i9 9900T

Official Website

Intel Core i5 8400

3.0

PCIe Version

3.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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