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Differences What are the advantages of each

Front view of GeForce GTX 460M

Reasons to consider the
Nvidia GeForce GTX 460M

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Better PassMark score 1,388 vs 667 More than 2x better PassMark score
Higher clock speed 675 MHz vs 585 MHz More than 15% higher clock speed
Slightly higher effective memory clock speed 2,500 MHz vs 1,900 MHz More than 30% higher effective memory clock speed
More render output processors 24 vs 16 8 more render output processors
Lower TDP 50W vs 75W Around 35% lower TDP
Front view of GeForce GTX 280M

Reasons to consider the
Nvidia GeForce GTX 280M

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More texture mapping units 64 vs 32 Twice as many texture mapping units
Slightly higher texture rate 37.44 GTexel/s vs 21.6 GTexel/s Around 75% higher texture rate
Higher memory clock speed 950 MHz vs 625 MHz More than 50% higher memory clock speed
Wider memory bus 256 bit vs 192 bit Around 35% wider memory bus

Benchmarks Real world tests of GeForce GTX 460M vs 280M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GTX 460M  vs 280M 

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

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

GeForce GTX 460M
5.4 GPixel/s
GeForce GTX 280M
9.36 GPixel/s

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

GeForce GTX 460M
21.6 GTexel/s
GeForce GTX 280M
37.44 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 460M
518.4 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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