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Differences What are the advantages of each

Front view of Radeon HD 8950M

Reasons to consider the
AMD Radeon HD 8950M

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Better floating-point performance 1,254 GFLOPS vs 691.2 GFLOPS More than 80% better floating-point performance
More compute units 16 vs 6 10 more compute units
More shading units 896 vs 384 512 more shading units
More texture mapping units 56 vs 24 32 more texture mapping units
Higher texture rate 39.2 GTexel/s vs 21.6 GTexel/s More than 80% higher texture rate
More render output processors 16 vs 8 Twice as many render output processors
Front view of Radeon HD 8790M

Reasons to consider the
AMD Radeon HD 8790M

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Higher clock speed 850 MHz vs 700 MHz More than 20% higher clock speed

Features Key features of the Radeon HD 8950M  vs 8790M 

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 HD 8950M
11.2 GPixel/s
Radeon HD 8790M
7.2 GPixel/s

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

Radeon HD 8950M
39.2 GTexel/s
Radeon HD 8790M
21.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8950M
1,254 GFLOPS
Radeon HD 8790M
691.2 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

Radeon HD 8950M  vs
8790M 
GPU brand AMD AMD
GPU name Saturn Mars
Market Laptop Laptop
Clock speed 700 MHz 850 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 896 384
Texture mapping units 56 24
Render output processors 16 8
Compute units 16 6
Pixel rate 11.2 GPixel/s 7.2 GPixel/s
Texture rate 39.2 GTexel/s 21.6 GTexel/s
Floating-point performance 1,254 GFLOPS 691.2 GFLOPS

memory

Radeon HD 8950M  vs
8790M 
Memory clock speed 1,000 MHz 1,000 MHz
Effective memory clock speed 4,000 MHz 4,000 MHz
Memory bus 128 bit 128 bit
Memory 2,048 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 64 GB/s 64 GB/s

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