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Differences What are the advantages of each

Front view of GeForce GTX 480M

Reasons to consider the
Nvidia GeForce GTX 480M

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Significantly better PassMark score 2,021 vs 667 More than 3x better PassMark score
More memory 2,048 MB vs 1,024 MB 2x more memory
More render output processors 32 vs 16 Twice as many render output processors
More shading units 352 vs 128 224 more shading units
Front view of GeForce GTX 280M

Reasons to consider the
Nvidia GeForce GTX 280M

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Higher clock speed 585 MHz vs 425 MHz Around 40% higher clock speed
Higher texture rate 37.44 GTexel/s vs 18.7 GTexel/s More than 2x higher texture rate
Significantly higher memory clock speed 950 MHz vs 600 MHz Around 60% higher memory clock speed
More texture mapping units 64 vs 44 20 more texture mapping units
Lower TDP 75W vs 100W 25% lower TDP

Benchmarks Real world tests of GeForce GTX 480M vs 280M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GTX 480M  vs 280M 

memory bandwidth Rate at which data can be read from or stored in onboard memory

GeForce GTX 480M
76.8 GB/s
GeForce GTX 280M
60.8 GB/s

pixel rate Number of pixels a graphics card can render to the screen every second

GeForce GTX 480M
9.35 GPixel/s
GeForce GTX 280M
9.36 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

GeForce GTX 480M
18.7 GTexel/s
GeForce GTX 280M
37.44 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 480M
598.4 GFLOPS
GeForce GTX 280M
374.5 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

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