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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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GPUBoss is not aware of any important advantages of the 8950M vs the 7970M.

Front view of Radeon HD 7970M

Reasons to consider the
AMD Radeon HD 7970M

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Significantly higher memory bandwidth 153.6 GB/s vs 64 GB/s Around 2.5x higher memory bandwidth
Higher clock speed 850 MHz vs 700 MHz More than 20% higher clock speed
Better floating-point performance 2,176 GFLOPS vs 1,254 GFLOPS Around 75% better floating-point performance
Higher pixel rate 27.2 GPixel/s vs 11.2 GPixel/s Around 2.5x higher pixel rate
Higher effective memory clock speed 4,800 MHz vs 4,000 MHz 20% higher effective memory clock speed
Higher texture rate 68 GTexel/s vs 39.2 GTexel/s Around 75% higher texture rate
More render output processors 32 vs 16 Twice as many render output processors
Significantly wider memory bus 256 bit vs 128 bit 2x wider memory bus
More shading units 1,280 vs 896 384 more shading units
More texture mapping units 80 vs 56 24 more texture mapping units
Higher memory clock speed 1,200 MHz vs 1,000 MHz 20% higher memory clock speed
More compute units 20 vs 16 4 more compute units

Features Key features of the Radeon HD 8950M  vs 7970M 

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

Radeon HD 8950M
64 GB/s
Radeon HD 7970M
153.6 GB/s

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

Radeon HD 8950M
11.2 GPixel/s
Radeon HD 7970M
27.2 GPixel/s

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

Radeon HD 8950M
39.2 GTexel/s
Radeon HD 7970M
68 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8950M
1,254 GFLOPS
Radeon HD 7970M
2,176 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
7970M 
GPU brand AMD AMD
GPU name Saturn Wimbledon
Market Laptop Laptop
Clock speed 700 MHz 850 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 896 1,280
Texture mapping units 56 80
Render output processors 16 32
Compute units 16 20
Pixel rate 11.2 GPixel/s 27.2 GPixel/s
Texture rate 39.2 GTexel/s 68 GTexel/s
Floating-point performance 1,254 GFLOPS 2,176 GFLOPS

memory

Radeon HD 8950M  vs
7970M 
Memory clock speed 1,000 MHz 1,200 MHz
Effective memory clock speed 4,000 MHz 4,800 MHz
Memory bus 128 bit 256 bit
Memory 2,048 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 64 GB/s 153.6 GB/s

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