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Intel logo Core i5-6400
versus
Intel logo Core i5-2500K

Intel Core i5-6400 logo Intel Core i5-2500K logo
General information Core i5-6400 Core i5-2500K
Launched Q3 2015 Q4 2010
Used in Desktop Desktop
Factory Intel Intel
Socket LGA1151 LGA1155
Series Name Intel Core i5 Intel Core i5
Core Family Name Skylake-S Sandy Bridge
Clock 2.7 GHz 18.2 % 3.3 GHz 0 %
Turbo Clock 3.3 GHz 10.8 % 3.7 GHz 0 %
Cores 4 0 % 4 0 %
Threads 4 0 % 4 0 %
Thermal Design Power (TDP) 65 W 31.6 % 95 W 0 %
Lithography 14 nm 56.3 % 32 nm 0 %
L1 Cache 4 × 32 kB Instruction
4 × 32 kB Data
4 × 32 kB Instruction
4 × 32 kB Data
L2 Cache 4 × 256 kB
2 × 256 kB
L3 Cache 1 × 6 MB
1 × 6 MB
ECC Supported No No
Multithreading Supported No No
Integrated GPU Intel HD Graphics 530 Intel HD Graphics 3000
Performance Core i5-6400 Core i5-2500K
Overall Score 42756 0 % 40396 5.5 %
Future Proof 49 % 0 % 21 % 57.1 %
Benchmark Score 3342 0 % 2663 20.3 %
Single Thread Score 1945.3 0 % 1691.2 13.1 %
Encrypting Data 1473.1 MB/s 0 % 1029.7 MB/s 30.1 %
Compressing Data 70.5 MB/s 0 % 66 MB/s 6.4 %
String objects sorting 8852.5 thousand/s 2.8 % 9108.3 thousand/s 0 %
Prime numbers generation 26 millions/s 0.1 % 26 millions/s 0 %
Mathemathic operations (integer) 13694.7 millions/s 4.6 % 14361.2 millions/s 0 %
Mathemathic operations (float) 11633.2 millions/s 0 % 7425.2 millions/s 36.2 %

Comparison of average FPS

Comparison of average FPS count by settings on resolution 1920 × 1080 (FHD (1080p)) for Core i5-6400, Core i5-2500K.

Average frames per second Core i5-6400 Core i5-2500K
Screen resolution: 1920 × 1080 pixels   Change
Ultra settings 81.7 FPS 74.7 FPS
High settings 130.7 FPS 119.5 FPS
Medium settings 163.4 FPS 149.4 FPS
Low settings 204.2 FPS 186.8 FPS
Difference 0 % 8.5 %

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 i5-6400 Core i5-2500K
Screen resolution: 1920 × 1080 pixels   Change
Ultra settings 125.9 FPS 121.7 FPS
High settings 201.4 FPS 194.8 FPS
Medium settings 251.8 FPS 243.5 FPS
Low settings 314.7 FPS 304.3 FPS
Difference 0 % 3.3 %
Configuration Settings
Gaming astronaut image
Video game
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Screen resolution Screen resolution image
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