CPU Comparison

Intel Core i7 7820X

8C / 16T

3.6 - 4.3 GHz

TDP: 140W

View full specs

Intel Core i9 9900X

10C / 20T

3.5 - 4.4 GHz

TDP: 165W

View full specs

Benchmark Scores

C23

Cinebench R23 (Single-Core)

Intel Core i7 7820X1,346

Intel Core i9 9900X1,182

Difference: 13.9% (Intel faster)

C23

Cinebench R23 (Multi-Core)

Intel Core i7 7820X13,468

Intel Core i9 9900X13,994

Difference: 3.9% (Intel faster)

C20

Cinebench R20 (Multi-Core)

Intel Core i7 7820X5,155

Intel Core i9 9900X4,855

Difference: 6.2% (Intel faster)

Geekbench 6 (Single-Core)

Intel Core i7 7820X1,252

Intel Core i9 9900X1,455

Difference: 16.2% (Intel faster)

Geekbench 6 (Multi-Core)

Intel Core i7 7820X7,510

Intel Core i9 9900X10,273

Difference: 36.8% (Intel faster)

Geekbench 5 (Single-Core)

Intel Core i7 7820X1,120

Intel Core i9 9900X1,165

Difference: 4.0% (Intel faster)

Geekbench 5 (Multi-Core)

Intel Core i7 7820X8,504

Intel Core i9 9900X10,704

Difference: 25.9% (Intel faster)

PassMark (Single-Core)

Intel Core i7 7820X2,536

Intel Core i9 9900X2,565

Difference: 1.1% (Intel faster)

PassMark (Multi-Core)

Intel Core i7 7820X17,189

Intel Core i9 9900X21,833

Difference: 27.0% (Intel faster)

Specifications

Cores

Threads

3.6 GHz

Base Frequency

3.5 GHz

4.3 GHz

Boost Frequency

4.4 GHz

140 W

TDP

165 W

LGA-2066

Socket

LGA-2066

Skylake

Architecture

Skylake

14nm

Manufacturing

14nm

2017

Release Year

2018

11MB shared

L3 Cache

20MB shared

DDR4-2666

Memory Support

DDR4-2666

128GB

Max Memory

128GB

PCIe Version

Related Comparisons

Intel Core i9 9900X vs Intel Core i9 9940X

Intel 10C/20T vs Intel 14C/28T

Same socket