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Intel logo Core i9-9940X
versus
Intel logo Core i5-6400T

Intel Core i9-9940X logo Intel Core i5-6400T logo
General information Core i9-9940X Core i5-6400T
Launched Q4 2018 Q4 2015
Used in Desktop Desktop
Factory Intel Intel
Socket FCLGA2066 LGA1151
Series Name Intel Core i9 Intel Core i5
Core Family Name Skylake-X Skylake-S
Clock 3.3 GHz 0 % 2.2 GHz 33.3 %
Turbo Clock 4.5 GHz 0 % 2.8 GHz 37.8 %
Cores 14 0 % 4 71.4 %
Threads 28 0 % 4 85.7 %
Thermal Design Power (TDP) 165 W 0 % 35 W 78.8 %
Maximum supported RAM 128 GB 0 % 64 GB 50 %
Lithography 14 nm 0 % 14 nm 0 %
L1 Cache 14 × 32 kB Instruction
14 × 32 kB Data
4 × 32 kB Instruction
4 × 32 kB Data
L2 Cache 14 × 1 MB
4 × 256 kB
L3 Cache 1 × 19.25 MB
1 × 6 MB
ECC Supported No No
Multithreading Supported Yes No
Performance Core i9-9940X Core i5-6400T
Overall Score 65263 0 % 40783 37.5 %
Future Proof 68 % 0 % 50 % 26.5 %
Benchmark Score 18141 0 % 2766 84.8 %
Single Thread Score 2621.5 0 % 1626.2 38 %
Encrypting Data 10594.1 MB/s 0 % 1228.2 MB/s 88.4 %
Compressing Data 457.2 MB/s 0 % 56.2 MB/s 87.7 %
String objects sorting 58746.3 thousand/s 0 % 7282.8 thousand/s 87.6 %
Prime numbers generation 96.2 millions/s 0 % 23.9 millions/s 75.2 %
Mathemathic operations (integer) 103750 millions/s 0 % 10969.5 millions/s 89.4 %
Mathemathic operations (float) 64837.6 millions/s 0 % 9491 millions/s 85.4 %

Comparison of average FPS

Comparison of average FPS count by settings on resolution 1920 × 1080 (FHD (1080p)) for Core i9-9940X, Core i5-6400T.

Average frames per second Core i9-9940X Core i5-6400T
Screen resolution: 1920 × 1080 pixels   Change
Ultra settings 148.6 FPS 75.8 FPS
High settings 237.7 FPS 121.3 FPS
Medium settings 297.2 FPS 151.6 FPS
Low settings 371.5 FPS 189.5 FPS
Difference 0 % 49 %

Grand Theft Auto V Frames per second

Comparison of FPS count by settings on resolution 1920 × 1080 (FHD (1080p)) in game 1920 × 1080 (FHD (1080p)) for Grand Theft Auto V.

Grand Theft Auto V Core i9-9940X Core i5-6400T
Screen resolution: 1920 × 1080 pixels   Change
Ultra settings 165.8 FPS 122.5 FPS
High settings 265.2 FPS 195.9 FPS
Medium settings 331.5 FPS 244.9 FPS
Low settings 414.4 FPS 306.2 FPS
Difference 0 % 26.1 %
Configuration Settings
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