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Differences What are the advantages of each

Front view of GeForce GTX 660

Reasons to consider the
Nvidia GeForce GTX 660

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Significantly higher memory bandwidth 179.2 GB/s vs 51.2 GB/s Around 3.5x higher memory bandwidth
Significantly higher effective memory clock speed 5,600 MHz vs 3,200 MHz 75% higher effective memory clock speed
Better floating-point performance 1,896 GFLOPS vs 311 GFLOPS More than 6x better floating-point performance
Higher texture rate 79 GTexel/s vs 13 GTexel/s More than 6x higher texture rate
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher pixel rate 19.8 GPixel/s vs 3.24 GPixel/s More than 6x higher pixel rate
More render output processors 32 vs 4 28 more render output processors
More texture mapping units 96 vs 16 80 more texture mapping units
More shading units 1,152 vs 96 1056 more shading units
Significantly higher memory clock speed 1,400 MHz vs 800 MHz 75% higher memory clock speed
Better T-Rex score 2.4 frames/s vs 0.75 frames/s Around 3.2x better T-Rex score
Front view of GeForce GT 630

Reasons to consider the
EVGA GeForce GT 630

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Lower TDP 65W vs 130W 2x lower TDP

Benchmarks Real world tests of GeForce GTX 660 vs GT 630

Bitcoin mining Data courtesy CompuBench

GeForce GTX 660
60.24 mHash/s
GeForce GT 630
15.01 mHash/s

Face detection Data courtesy CompuBench

GeForce GTX 660
31.15 mPixels/s
GeForce GT 630
6.58 mPixels/s

Ocean surface simulation Data courtesy CompuBench

GeForce GTX 660
1,054.26 frames/s
GeForce GT 630
204.43 frames/s

Particle simulation Data courtesy CompuBench

GeForce GTX 660
331.14 mInteraction/s
GeForce GT 630
117.85 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

GeForce GTX 660
2.4 frames/s
GeForce GT 630
0.75 frames/s

Video composition Data courtesy CompuBench

GeForce GTX 660
40.05 frames/s
GeForce GT 630
10.31 frames/s

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