Mobility Radeon HD 4670 Mac 

Released September, 2009
  • 680 MHz
  • 256 MB GDDR3

Features Key features of the Mobility Radeon HD 4670 Mac

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

Mobility Radeon HD 4670 Mac
25.28 GB/s
Radeon HD 6770M
57.6 GB/s

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

Mobility Radeon HD 4670 Mac
5.44 GPixel/s
Radeon HD 6750M Mac
4.78 GPixel/s
Radeon HD 6770M
5.8 GPixel/s

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

Mobility Radeon HD 4670 Mac
21.76 GTexel/s
Radeon HD 6750M Mac
14.35 GTexel/s
Radeon HD 6770M
17.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Mobility Radeon HD 4670 Mac
435.2 GFLOPS
Radeon HD 6770M
Radeon HD 6750M Mac
574.1 GFLOPS

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

Mobility Radeon HD 4670 Mac

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

Mobility Radeon HD 4670 Mac

Specifications Full list of technical specs


GPU brand ATI
GPU name M96
Market Laptop
Clock speed 680 MHz
Is dual GPU No
Reference card None

raw performance

Shading units 320
Texture mapping units 32
Render output processors 8
Compute units 4
Pixel rate 5.44 GPixel/s
Texture rate 21.76 GTexel/s
Floating-point performance 435.2 GFLOPS


Memory clock speed 790 MHz
Effective memory clock speed 1,580 MHz
Memory bus 128 bit
Memory 256 MB
Memory type GDDR3
Memory bandwidth 25.28 GB/s

noise and power

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