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CPU Comparison

Intel Core i9 9900X

10C / 20T

3.5 - 4.4 GHz

TDP: 165W

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VS

Intel Core i9 9940X

14C / 28T

3.3 - 4.4 GHz

TDP: 165W

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Benchmark Scores

C23

Cinebench R23 (Single-Core)

Intel Core i9 9900X1,182
Intel Core i9 9940X1,231
Difference: 4.1% (Intel faster)
C23

Cinebench R23 (Multi-Core)

Intel Core i9 9900X13,994
Intel Core i9 9940X15,373
Difference: 9.9% (Intel faster)
C20

Cinebench R20 (Single-Core)

Intel Core i9 9900X455
Intel Core i9 9940X457
Difference: 0.4% (Intel faster)
C20

Cinebench R20 (Multi-Core)

Intel Core i9 9900X4,855
Intel Core i9 9940X5,912
Difference: 21.8% (Intel faster)
G6

Geekbench 6 (Single-Core)

Intel Core i9 9900X1,455
Intel Core i9 9940X1,328
Difference: 9.6% (Intel faster)
G6

Geekbench 6 (Multi-Core)

Intel Core i9 9900X10,273
Intel Core i9 9940X9,787
Difference: 5.0% (Intel faster)
G5

Geekbench 5 (Single-Core)

Intel Core i9 9900X1,165
Intel Core i9 9940X1,189
Difference: 2.1% (Intel faster)
G5

Geekbench 5 (Multi-Core)

Intel Core i9 9900X10,704
Intel Core i9 9940X14,374
Difference: 34.3% (Intel faster)
P

PassMark (Single-Core)

Intel Core i9 9900X2,565
Intel Core i9 9940X2,608
Difference: 1.7% (Intel faster)
P

PassMark (Multi-Core)

Intel Core i9 9900X21,833
Intel Core i9 9940X28,355
Difference: 29.9% (Intel faster)

Specifications

10
Cores
14
20
Threads
28
3.5 GHz
Base Frequency
3.3 GHz
4.4 GHz
Boost Frequency
4.4 GHz
165 W
TDP
165 W
LGA-2066
Socket
LGA-2066
Skylake
Architecture
Skylake
14nm
Manufacturing
14nm
2018
Release Year
2018
20MB shared
L3 Cache
20MB shared
DDR4-2666
Memory Support
DDR4-2666
128GB
Max Memory
128GB
3
PCIe Version
3