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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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Much higher effective memory clock speed 5,600 MHz vs 2,214 MHz More than 2.5x higher effective memory clock speed
Significantly better PassMark score 4,121 vs 1,198 Around 3.5x better PassMark score
Higher clock speed 823 MHz vs 602 MHz More than 35% higher clock speed
Much better sky diver factor score 306.05 vs 1.03 More than 296.8x better sky diver factor score
Better floating-point performance 1,896.2 GFLOPS vs 622.1 GFLOPS More than 3x better floating-point performance
Higher memory bandwidth 179.2 GB/s vs 141.7 GB/s More than 25% higher memory bandwidth
More memory 2,048 MB vs 1,024 MB 2x more memory
Significantly better T-Rex score 19,695.95 vs 3,167.15 Around 6.2x better T-Rex score
Significantly more shading units 1,152 vs 240 912 more shading units
Higher texture rate 79 GTexel/s vs 48.16 GTexel/s Around 65% higher texture rate
Higher memory clock speed 1,400 MHz vs 1,107 MHz More than 25% higher memory clock speed
More texture mapping units 96 vs 80 16 more texture mapping units
Significantly lower TDP 130W vs 236W Around 45% lower TDP
Front view of GeForce GTX 280

Reasons to consider the
Nvidia GeForce GTX 280

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Much wider memory bus 512 bit vs 256 bit 2x wider memory bus

Benchmarks Real world tests of GeForce GTX 660 vs 280

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce GTX 660
19,695.95
GeForce GTX 280
3,167.15

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street

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