Winner
AMD Radeon HD 7770
GPUBoss recommends the AMD Radeon HD 7770 based on its benchmarks and compute performance.
See full details Radeon HD 7770 vs GeForce GT 640 |
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GPUBoss Review Our evaluation of 7770 vs 640 among Desktop GPUs
Gaming | |
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| Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more | |
Graphics | |
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| T-Rex, Manhattan, Cloud Gate Factor, Sky Diver Factor and 1 more | |
Computing | |
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| Face Detection, Ocean Surface Simulation and 3 more | |
Performance per Watt | |
| | |
| Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more | |
Value | |
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| Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more | |
Noise and Power | |
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| TDP, Idle Power Consumption, Load Power Consumption and 2 more | |
| 6.6 | Overall Score |
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 | Winner |
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Differences What are the advantages of each
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| Much higher effective memory clock speed | 4,500 MHz | vs | 1,800 MHz | 2.5x higher effective memory clock speed | |||
|---|---|---|---|---|---|---|---|
| Better PassMark score | 2,194 | vs | 1,282 | More than 70% better PassMark score | |||
| Higher memory bandwidth | 72 GB/s | vs | 28.8 GB/s | 2.5x higher memory bandwidth | |||
| Higher clock speed | 1,000 MHz | vs | 902 MHz | More than 10% higher clock speed | |||
| Better floating-point performance | 1,280 GFLOPS | vs | 692.7 GFLOPS | Around 85% better floating-point performance | |||
| Better sky diver factor score | 221.64 | vs | 143.75 | Around 55% better sky diver factor score | |||
| Higher pixel rate | 16 GPixel/s | vs | 7.22 GPixel/s | Around 2.2x higher pixel rate | |||
| Higher metro: last light framerate | 55 | vs | 28 | More than 95% higher metro: last light framerate | |||
| Higher memory clock speed | 1,125 MHz | vs | 900 MHz | 25% higher memory clock speed | |||
| More shading units | 640 | vs | 384 | 256 more shading units | |||
| Better PassMark direct compute score | 1,403 | vs | 684 | More than 2x better PassMark direct compute score | |||
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| Better T-Rex score | 0.79 frames/s | vs | -1 frames/s | More than 175% better T-Rex score | |||
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Benchmarks Real world tests of Radeon HD 7770 vs GeForce GT 640
Bitcoin mining Data courtesy CompuBench
Face detection Data courtesy CompuBench
Ocean surface simulation Data courtesy CompuBench
Fire Strike Factor Data courtesy FutureMark
Sky Diver Factor Data courtesy FutureMark
Cloud Gate Factor Data courtesy FutureMark
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