GPUBoss Review Our evaluation of 770 vs 840A among all GPUs

Gaming

Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more

Graphics

T-Rex, Manhattan, Cloud Gate Factor, Sky Diver Factor and 1 more

Computing

Face Detection, Ocean Surface Simulation and 3 more

Performance per Watt

Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more

Noise and Power

TDP, Idle Power Consumption, Load Power Consumption and 2 more

6.8

Overall Score

Winner
Nvidia GeForce GTX 770 

GPUBoss recommends the Nvidia GeForce GTX 770  based on its benchmarks.

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VS

Differences What are the advantages of each

Front view of GeForce GTX 770

Reasons to consider the
Nvidia GeForce GTX 770

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Significantly better PassMark score 6,099 vs 873 Around 7x better PassMark score
Much higher effective memory clock speed 7,012 MHz vs 2,002 MHz More than 3.5x higher effective memory clock speed
Significantly higher memory bandwidth 224 GB/s vs 16.02 GB/s Around 14x higher memory bandwidth
Significantly higher texture rate 134 GTexel/s vs 16.46 GTexel/s Around 8.2x higher texture rate
Better floating-point performance 3,213 GFLOPS vs 790.3 GFLOPS More than 4x better floating-point performance
Significantly more texture mapping units 128 vs 16 112 more texture mapping units
Higher pixel rate 33.5 GPixel/s vs 8.23 GPixel/s More than 4x higher pixel rate
More shading units 1,536 vs 384 1152 more shading units
More render output processors 32 vs 8 24 more render output processors
Slightly more memory 2,048 MB vs 1,024 MB 2x more memory
Significantly higher memory clock speed 1,753 MHz vs 1,001 MHz More than 75% higher memory clock speed
Wider memory bus 256 bit vs 64 bit 4x wider memory bus
Front view of GeForce 840A

Reasons to consider the
Nvidia GeForce 840A

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Much lower TDP 33W vs 230W 7x lower TDP

Benchmarks Real world tests of GeForce GTX 770 vs 840A

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce GTX 770
3,357.38
GeForce 840A
1,707.37

Manhattan (GFXBench 3.0) Data courtesy CompuBench

GeForce GTX 770
3,714.32
GeForce 840A
3,613.42

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