Intel Core i9 9900T vs Intel Core i9 9940X

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We compared two desktop CPUs: Intel Core i9 9900T with 8 cores 2.1GHz and Intel Core i9 9940X with 14 cores 3.3GHz . 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 6 months late

Integrated graphics card

Lower TDP (35W vs 165W)

Intel Core i9 9940X 's Advantages

Larger memory bandwidth (85GB/s vs 41.6GB/s)

Higher base frequency (3.3GHz vs 2.1GHz)

Larger L3 cache size (20MB vs 16MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i9 9900T

1201

Intel Core i9 9940X +2%

1228

Cinebench R23 Multi Core

Intel Core i9 9900T

10187

Intel Core i9 9940X +50%

15351

Geekbench 6 Single Core

Intel Core i9 9900T +10%

1461

Intel Core i9 9940X

1328

Geekbench 6 Multi Core

Intel Core i9 9900T

6776

Intel Core i9 9940X +44%

9787

Geekbench 5 Single Core

Intel Core i9 9900T

1150

Intel Core i9 9940X +3%

1189

Geekbench 5 Multi Core

Intel Core i9 9900T

6752

Intel Core i9 9940X +112%

14374

Passmark CPU Single Core

Intel Core i9 9900T

2470

Intel Core i9 9940X +5%

2608

Passmark CPU Multi Core

Intel Core i9 9900T

13472

Intel Core i9 9940X +110%

28355

Intel Core i9 9900T

VS

Intel Core i9 9940X

General Parameters

Apr 2019

Release Date

Oct 2018

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Skylake

i9-9900T

Processor Number

i9-9940X

LGA-1151

Socket

LGA-2066

UHD Graphics 630

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-2066

35 W

Power Consumption

165 W

100 °C

Peak Operating Temperature

88 °C

CPU Performance

8

Performance Cores

14

16

Performance Core Threads

28

2.1 GHz

Performance Core Base Frequency

3.3 GHz

4.4 GHz

Performance Core Turbo Frequency

4.4 GHz

8

Total Core Count

14

16

Total Thread Count

28

100 MHz

Bus Frequency

100 MHz

21x

Multiplier

33x

32 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

20 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128 GB

Max Memory Size

128 GB

2

Max Memory Channels

4

41.6 GB/s

Max Memory Bandwidth

85 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

350 MHz

GPU Base Frequency

-

1200 MHz

GPU Max Dynamic Frequency

-

192

Shader Units

-

24

Texture Units

-

3

Raster Operation Units

-

24

Execution Units

-

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i9 9900T

Official Website

Intel Core i9 9940X

3.0

PCIe Version

3.0

16

PCIe Lanes

44

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

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

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