GPUBoss Review Our evaluation of 660M vs 755M


Real world tests using the latest 3D games

BioShock Infinite and Crysis 3


Synthetic tests to measure overall performance

PassMark, 3DMark 11 Graphics, 3DMark Vantage Graphics and 3DMark06

Compute Performance

General computing tests executed on the GPU

PassMark Direct Compute and CLBenchmark Raytrace

No winner declared

Too close to call

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Differences What are the advantages of each

Front view of GeForce GTX 660M

Reasons to consider the
Nvidia GeForce GTX 660M

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Better CLBenchmark raytrace score 43,913 vs 40,022 Around 10% better CLBenchmark raytrace score
Front view of GeForce GT 755M

Reasons to consider the
Nvidia GeForce GT 755M

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Higher clock speed 980 MHz vs 835 MHz More than 15% higher clock speed
Higher effective memory clock speed 5,400 MHz vs 4,000 MHz 35% higher effective memory clock speed
Higher memory bandwidth 86.4 GB/s vs 64 GB/s More than 35% higher memory bandwidth
Higher pixel rate 15.7 GPixel/s vs 6.68 GPixel/s More than 2.2x higher pixel rate
Slightly better 3DMark06 score 15,861 vs 14,704 Around 10% better 3DMark06 score
Significantly higher memory clock speed 1,350 MHz vs 1,000 MHz 35% higher memory clock speed

Benchmarks Real world tests of GeForce GTX 660M vs GT 755M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance

CompuBench 1.5 (Bitcoin mining)

GeForce GTX 660M
37.19 mHash/s
GeForce GT 755M
27.02 mHash/s

GFXBench 3.0 (T-Rex)

GeForce GTX 660M
GeForce GT 755M

GFXBench 3.0 (Manhattan)

GeForce GTX 660M
GeForce GT 755M

BioShock Infinite 1920 x 1080 - Ultra preset + DX11 (DDOF)

GeForce GTX 660M
22.9 fps
GeForce GT 755M
24.2 fps

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