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Differences What are the advantages of each

Front view of Mobility Radeon HD 3850 X2

Reasons to consider the
ATi Mobility Radeon HD 3850 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
More render output processors 32 vs 16 Twice as many render output processors
Wider memory bus 512 bit vs 128 bit 4x wider memory bus
Lower TDP 70W vs 110W More than 35% lower TDP
Front view of GeForce GTX 650 Ti

Reasons to consider the
Axigon GeForce GTX 650 Ti

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Significantly higher clock speed 1,006 MHz vs 580 MHz Around 75% higher clock speed
Significantly higher effective memory clock speed 5,400 MHz vs 1,500 MHz More than 3.5x higher effective memory clock speed
Higher texture rate 64.4 GTexel/s vs 18.56 GTexel/s Around 3.5x higher texture rate
Slightly better floating-point performance 1,545.2 GFLOPS vs 742.4 GFLOPS More than 2x better floating-point performance
Significantly higher memory clock speed 1,350 MHz vs 750 MHz 80% higher memory clock speed
More texture mapping units 64 vs 32 Twice as many texture mapping units

Features Key features of the Mobility Radeon HD 3850 X2  vs GeForce GTX 650 Ti 

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 650 Ti
16.1 GPixel/s

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

GeForce GTX 650 Ti
64.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 650 Ti
1,545.2 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

Specifications Full list of technical specs

gpu

Mobility Radeon HD 3850 X2  vs
GeForce GTX 650 Ti 
GPU brand ATI Nvidia
GPU name M88 GK106
Market Laptop Desktop
Clock speed 580 MHz 1,006 MHz
Is dual GPU Yes No
Reference card None Nvidia GeForce GTX 650 Ti 928 MHz 1 GB

raw performance

Shading units 640 768
Texture mapping units 32 64
Render output processors 32 16
Pixel rate 18.56 GPixel/s 16.1 GPixel/s
Texture rate 18.56 GTexel/s 64.4 GTexel/s
Floating-point performance 742.4 GFLOPS 1,545.2 GFLOPS

memory

Mobility Radeon HD 3850 X2  vs
GeForce GTX 650 Ti 
Memory clock speed 750 MHz 1,350 MHz
Effective memory clock speed 1,500 MHz 5,400 MHz
Memory bus 512 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR3 GDDR5
Memory bandwidth 96 GB/s 86.4 GB/s

noise and power

TDP 70W 110W

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