Winner
Nvidia GeForce 840M
GPUBoss recommends the Nvidia GeForce 840M based on its benchmarks and compute performance.
See full details GeForce 840M vs 820M |
Released March, 2014
Nvidia GeForce 840M
- 1 GHz
- 1 GB DDR3
6.7 Out of 10
by Tim-Verry (Jun, 2013)These chips are still based on Kepler (600-series), but feature more CUDA cores, more memory, a wider memory bus, and faster clockspeeds.
VS
Released November, 2013
Nvidia GeForce 820M
- 625 MHz
- 1 GB DDR3
7.2 Out of 10
by hassan-mujtaba (Sep, 2014)Intel is so much focused on the power output of the Core M die that they even designed a new PCH known as Broadwell PCH-LP which is focused on power.
GPUBoss Review Our evaluation of 840M vs 820M 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 | |
| 7.2 | Overall Score |
| | |
 | Winner |
Cast your vote Do you agree or disagree with GPUBoss?
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Nvidia GeForce 840MGPUBoss Winner |  | |
Differences What are the advantages of each
| |||||||
| Significantly higher clock speed | 1,029 MHz | vs | 625 MHz | Around 65% higher clock speed | |||
|---|---|---|---|---|---|---|---|
| Much higher dead space 3 framerate | 24.5 fps | vs | 21.7 fps | Around 15% higher dead space 3 framerate | |||
| Better 3DMark 11 graphics score | 10,332 | vs | 7,518 | More than 35% better 3DMark 11 graphics score | |||
| Better 3DMark06 score | 2,338 | vs | 1,266.5 | Around 85% better 3DMark06 score | |||
| Slightly better 3DMark vantage graphics score | 6,627 | vs | 4,254 | More than 55% better 3DMark vantage graphics score | |||
| Better floating-point performance | 790.3 GFLOPS | vs | 240 GFLOPS | More than 3.2x better floating-point performance | |||
| Slightly higher pixel rate | 8.23 GPixel/s | vs | 2.5 GPixel/s | More than 3.2x higher pixel rate | |||
| More shading units | 384 | vs | 96 | 288 more shading units | |||
| Better cloud gate factor score | 10.08 | vs | 7.48 | Around 35% better cloud gate factor score | |||
| Higher memory clock speed | 1,001 MHz | vs | 900 MHz | More than 10% higher memory clock speed | |||
| Slightly higher BioShock infinite framerate | 13.5 fps | vs | 8.1 fps | More than 65% higher BioShock infinite framerate | |||
| |||||||
| Significantly higher diablo III framerate | 33.9 fps | vs | 17.7 fps | More than 90% higher diablo III framerate | |||
| Better manhattan score | 3,478.25 | vs | 2,571 | More than 35% better manhattan score | |||
| Slightly lower TDP | 15W | vs | 33W | 2.2x lower TDP | |||
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Benchmarks Real world tests of GeForce 840M vs 820M
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
Bioshock Infinite
Hitman: Absolution
Laptops
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- 22 laptops with the GeForce 840M, starting from $579
- 9 laptops with the GeForce 820M, starting from $424
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