Radeon HD 6970M Mac 

Released August, 2011
  • 680 MHz
  • 2 GB GDDR5

Features Key features of the Radeon HD 6970M Mac

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

Radeon HD 6970M Mac
115.2 GB/s
GeForce GTX 880M
160 GB/s

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

Radeon HD 6970M Mac
21.76 GPixel/s
GeForce GT 750M Mac
7.41 GPixel/s
GeForce GTX 880M
30.53 GPixel/s

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

Radeon HD 6970M Mac
32.6 GTexel/s
GeForce GTX 880M
122.1 GTexel/s
GeForce GT 750M Mac
29.63 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6970M Mac
1,305.6 GFLOPS
GeForce GTX 880M
2,930.7 GFLOPS
GeForce GT 750M Mac
711.2 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

Radeon HD 6970M Mac

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

Radeon HD 6970M Mac

Specifications Full list of technical specs


GPU brand AMD
GPU name Blackcomb
Market Laptop
Clock speed 680 MHz
Is dual GPU No
Reference card None

raw performance

Shading units 960
Texture mapping units 48
Render output processors 32
Compute units 12
Pixel rate 21.76 GPixel/s
Texture rate 32.6 GTexel/s
Floating-point performance 1,305.6 GFLOPS


Memory clock speed 900 MHz
Effective memory clock speed 3,600 MHz
Memory bus 256 bit
Memory 2,048 MB
Memory type GDDR5
Memory bandwidth 115.2 GB/s

noise and power

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