Winner
Nvidia GeForce GT 640M
GPUBoss recommends the Nvidia GeForce GT 640M based on its gaming.
See full details GeForce GT 640M vs 840M |
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GPUBoss Review Our evaluation of 640M vs 840M among Laptop GPUs under 35W TDP
Gaming | |
| | |
| Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more | |
Graphics | |
| | |
| T-Rex, Manhattan and Cloud Gate Factor | |
Computing | |
| | |
| Face Detection, Ocean Surface Simulation and 3 more | |
Performance per Watt | |
| | |
| Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more | |
Value | |
| | |
| Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more | |
Noise and Power | |
| | |
| TDP, Idle Power Consumption, Load Power Consumption and 2 more | |
| 3.2 | Overall Score |
| | |
 | Winner |
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Nvidia GeForce GT 640MGPUBoss Winner |  | |
Differences What are the advantages of each
| |||||||
| More memory | 2,048 MB | vs | 1,024 MB | 2x more memory | |||
|---|---|---|---|---|---|---|---|
| Much higher diablo III framerate | 42.7 fps | vs | 17.7 fps | Around 2.5x higher diablo III framerate | |||
| Higher hitman: absolution framerate | 7.45 | vs | 6.7 | More than 10% higher hitman: absolution framerate | |||
| More render output processors | 16 | vs | 8 | Twice as many render output processors | |||
| Wider memory bus | 128 bit | vs | 64 bit | 2x wider memory bus | |||
| More texture mapping units | 32 | vs | 16 | Twice as many texture mapping units | |||
| |||||||
| Significantly higher clock speed | 1,029 MHz | vs | 625 MHz | Around 65% higher clock speed | |||
| Much better T-Rex score | 3,359.62 | vs | 3,339.75 | Almost the same | |||
| Better particle simulation score | 184.99 mInteraction/s | vs | 97.1 mInteraction/s | More than 90% better particle simulation score | |||
| Higher memory clock speed | 1,001 MHz | vs | 900 MHz | More than 10% higher memory clock speed | |||
| Slightly better PassMark direct compute score | 726 | vs | 528 | Around 40% better PassMark direct compute score | |||
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Benchmarks Real world tests of GeForce GT 640M vs 840M
Bitcoin mining Data courtesy CompuBench
Face detection Data courtesy CompuBench
T-Rex (GFXBench 3.0) Data courtesy CompuBench
Manhattan (GFXBench 3.0) Data courtesy CompuBench
Fire Strike Factor Data courtesy FutureMark
Sky Diver Factor Data courtesy FutureMark
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