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Differences What are the advantages of each

Front view of Radeon R7 M265

Reasons to consider the
AMD Radeon R7 M265

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Better PassMark score 810 vs 563 Around 45% better PassMark score
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher clock speed 725 MHz vs 660 MHz Around 10% higher clock speed
Front view of Mobility Radeon HD 3870 X2

Reasons to consider the
ATi Mobility Radeon HD 3870 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Higher memory bandwidth 108.8 GB/s vs 28.8 GB/s More than 3.8x higher memory bandwidth
Much wider memory bus 512 bit vs 128 bit 4x wider memory bus
Significantly more render output processors 32 vs 8 24 more render output processors
Higher pixel rate 21.12 GPixel/s vs 6.6 GPixel/s Around 3.2x higher pixel rate
More shading units 640 vs 384 256 more shading units

Benchmarks Real world tests of Radeon R7 M265 vs Mobility Radeon HD 3870 X2

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Radeon R7 M265  vs Mobility Radeon HD 3870 X2 

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

Radeon R7 M265
6.6 GPixel/s

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

Radeon R7 M265
19.8 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R7 M265
633.6 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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