Intel Core i7 9800X vs Intel Core i5 8400T

VS

Intel Core i7 9800X

Intel Core i5 8400T

We compared two desktop CPUs: Intel Core i7 9800X with 8 cores 3.8GHz and Intel Core i5 8400T with 6 cores 1.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 9800X 's Advantages

Released 6 months late

Larger memory bandwidth (79.47GB/s vs 41.6GB/s)

Higher base frequency (3.8GHz vs 1.7GHz)

Larger L3 cache size (17MB vs 9MB)

Intel Core i5 8400T 's Advantages

Integrated graphics card

Lower TDP (35W vs 165W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 9800X +63%

1263

Intel Core i5 8400T

774

Cinebench R23 Multi Core

Intel Core i7 9800X +258%

13055

Intel Core i5 8400T

3638

Geekbench 6 Single Core

Intel Core i7 9800X +17%

1314

Intel Core i5 8400T

1120

Geekbench 6 Multi Core

Intel Core i7 9800X +117%

7991

Intel Core i5 8400T

3670

Geekbench 5 Single Core

Intel Core i7 9800X +38%

1225

Intel Core i5 8400T

886

Geekbench 5 Multi Core

Intel Core i7 9800X +141%

9648

Intel Core i5 8400T

4000

Passmark CPU Single Core

Intel Core i7 9800X +34%

2573

Intel Core i5 8400T

1917

Passmark CPU Multi Core

Intel Core i7 9800X +143%

18121

Intel Core i5 8400T

7447

Intel Core i7 9800X

VS

Intel Core i5 8400T

General Parameters

Oct 2018

Release Date

Apr 2018

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Coffee Lake

i7-9800X

Processor Number

i5-8400T

LGA-2066

Socket

LGA-1151

N/A

Integrated Graphics

UHD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

165 W

Power Consumption

35 W

95 °C

Peak Operating Temperature

100 °C

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

6

3.8 GHz

Performance Core Base Frequency

1.7 GHz

4.4 GHz

Performance Core Turbo Frequency

3.3 GHz

8

Total Core Count

6

16

Total Thread Count

6

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

17x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

17 MB shared

L3 Cache

9 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

4

Max Memory Channels

2

79.47 GB/s

Max Memory Bandwidth

41.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1050 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i7 9800X

Official Website

Intel Core i5 8400T

3.0

PCIe Version

3.0

44

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2, AVX-512

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

Related CPU Comparisons

1

Intel Core i7 9800X vs Intel Core i5 7400

2

Intel Core i7 9800X vs AMD Ryzen 9 5900X

3

Intel Core i7 9800X vs AMD Threadripper PRO 7955WX

4

Intel Core i7 9800X vs Intel Core i7 9700KF

5

Intel Core i7 9800X vs Intel Core i7 12700K

6

Intel Core i7 9800X vs Intel Core i3 10100

7

Intel Core i7 9800X vs Intel Core i5 9400

8

Intel Core i7 9800X vs Intel Core i9 12900K

9

Intel Core i7 9800X vs Intel Core i9 10900KF

10

Intel Core i7 9800X vs Intel Core i3 9100F

Related News

1

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

2

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

3

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

4

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

5

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

6

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

7

CXMT Reportedly Achieves 80% Yield in DDR5 Production

8

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

9

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

10

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps