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Differences What are the advantages of each

Front view of Mobility Radeon HD 5650

Reasons to consider the
ATi Mobility Radeon HD 5650

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Higher clock speed 650 MHz vs 585 MHz More than 10% higher clock speed
More shading units 400 vs 128 272 more shading units
Lower TDP 15W vs 75W 5x lower TDP
Front view of GeForce GTX 280M

Reasons to consider the
Nvidia GeForce GTX 280M

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Higher memory bandwidth 60.8 GB/s vs 25.6 GB/s More than 2.2x higher memory bandwidth
More texture mapping units 64 vs 20 44 more texture mapping units
Higher texture rate 37.44 GTexel/s vs 13 GTexel/s Around 3x higher texture rate
Significantly wider memory bus 256 bit vs 128 bit 2x wider memory bus
More render output processors 16 vs 8 Twice as many render output processors
Higher memory clock speed 950 MHz vs 800 MHz Around 20% higher memory clock speed

Benchmarks Real world tests of Mobility Radeon HD 5650 vs GeForce GTX 280M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Mobility Radeon HD 5650  vs GeForce GTX 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 280M
9.36 GPixel/s

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

GeForce GTX 280M
37.44 GTexel/s

floating point performance How fast the gpu can crunch numbers

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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