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Intel logo Core i7-990X
versus
Intel logo Core i5-660

Intel Core i7-990X logo Intel Core i5-660 logo
General information Core i7-990X Core i5-660
Launched Q1 2011 Q4 2009
Used in Desktop Desktop
Factory Intel Intel
Socket LGA1366 LGA1156
Series Name Intel Core i7 Extreme Intel Core i5
Core Family Name Gulftown Clarkdale
Clock 3.5 GHz 0 % 3.3 GHz 5.7 %
Turbo Clock 3.7 GHz 0 % 3.6 GHz 2.7 %
Cores 6 0 % 2 66.7 %
Threads 12 0 % 4 66.7 %
Thermal Design Power (TDP) 130 W 0 % 73 W 43.8 %
Lithography 32 nm 0 % 32 nm 0 %
L1 Cache 6 × 32 kB Instruction
6 × 32 kB Data
2 × 32 kB Instruction
2 × 32 kB Data
L2 Cache 6 × 256 kB
2 × 256 kB
L3 Cache 1 × 12 MB
1 × 4 MB
ECC Supported No No
Multithreading Supported Yes Yes
Performance Core i7-990X Core i5-660
Overall Score 46297 0 % 35227 23.9 %
Future Proof 23 % 0 % 15 % 34.8 %
Benchmark Score 4594 0 % 1540 66.5 %
Single Thread Score 1568 0 % 1408.1 10.2 %
Encrypting Data 2647.3 MB/s 24.6 % 3509.6 MB/s 0 %
Compressing Data 119.2 MB/s 0 % 37.7 MB/s 68.4 %
String objects sorting 16069.4 thousand/s 0 % 5186 thousand/s 67.7 %
Prime numbers generation 33 millions/s 0 % 10.9 millions/s 66.8 %
Mathemathic operations (integer) 29413.9 millions/s 0 % 9223.3 millions/s 68.6 %
Mathemathic operations (float) 12605.2 millions/s 0 % 3994.9 millions/s 68.3 %

Comparison of average FPS

Comparison of average FPS count by settings on resolution 1920 × 1080 (FHD (1080p)) for Core i7-990X, Core i5-660.

Average frames per second Core i7-990X Core i5-660
Screen resolution: 1920 × 1080 pixels   Change
Ultra settings 92.2 FPS 59.3 FPS
High settings 147.5 FPS 94.9 FPS
Medium settings 184.4 FPS 118.7 FPS
Low settings 230.5 FPS 148.3 FPS
Difference 0 % 35.7 %

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 i7-990X Core i5-660
Screen resolution: 1920 × 1080 pixels   Change
Ultra settings 132.2 FPS 112.6 FPS
High settings 211.5 FPS 180.2 FPS
Medium settings 264.3 FPS 225.3 FPS
Low settings 330.4 FPS 281.6 FPS
Difference 0 % 14.8 %
Configuration Settings
Gaming astronaut image
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Screen resolution Screen resolution image
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