Mobility Radeon HD 4850 Mac 

Released August, 2009
  • 503 MHz
  • 512 MB GDDR3

Features Key features of the Mobility Radeon HD 4850 Mac

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

Mobility Radeon HD 4850 Mac
54.4 GB/s
Radeon HD 6970M Mac
115.2 GB/s

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

Mobility Radeon HD 4850 Mac
8.05 GPixel/s
Radeon HD 6970M Mac
21.76 GPixel/s
Radeon HD 6750M Mac
4.78 GPixel/s

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

Mobility Radeon HD 4850 Mac
20.12 GTexel/s
Radeon HD 6970M Mac
32.6 GTexel/s
Radeon HD 6750M Mac
14.35 GTexel/s

floating point performance How fast the gpu can crunch numbers

Mobility Radeon HD 4850 Mac
804.8 GFLOPS
Radeon HD 6970M Mac
1,305.6 GFLOPS
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 4850 Mac
800

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

Mobility Radeon HD 4850 Mac
40

Specifications Full list of technical specs

gpu

GPU brand ATI
GPU name M98
Market Laptop
Clock speed 503 MHz
Is dual GPU No
Reference card None

raw performance

Shading units 800
Texture mapping units 40
Render output processors 16
Compute units 10
Pixel rate 8.05 GPixel/s
Texture rate 20.12 GTexel/s
Floating-point performance 804.8 GFLOPS

memory

Memory clock speed 850 MHz
Effective memory clock speed 1,700 MHz
Memory bus 256 bit
Memory 512 MB
Memory type GDDR3
Memory bandwidth 54.4 GB/s
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