Radeon HD 6970M Mac vs 6770M Mac |
Released August, 2011
AMD Radeon HD 6970M Mac
- 680 MHz
- 2 GB GDDR5
by Shaikh-Rafia (Jan, 2014)The very much famous Michael Kukielka has released his Apple Mac Pro benchmark video.
VS
Released January, 2011
AMD Radeon HD 6770M Mac
- 725 MHz
- 512 MB GDDR5
by Trace-Hagan (May, 2013)The range is powered by Kepler from bottom to top and brings great performance to mobile platforms.
Cast your vote Do you agree or disagree with GPUBoss?
VS
Differences What are the advantages of each
| |||||||
| More memory | 2,048 MB | vs | 512 MB | 4x more memory | |||
|---|---|---|---|---|---|---|---|
| Higher memory bandwidth | 115.2 GB/s | vs | 57.6 GB/s | 2x higher memory bandwidth | |||
| Significantly more render output processors | 32 | vs | 8 | 24 more render output processors | |||
| Higher pixel rate | 21.76 GPixel/s | vs | 5.8 GPixel/s | More than 3.8x higher pixel rate | |||
| Better floating-point performance | 1,305.6 GFLOPS | vs | 696 GFLOPS | Around 90% better floating-point performance | |||
| Significantly wider memory bus | 256 bit | vs | 128 bit | 2x wider memory bus | |||
| More shading units | 960 | vs | 480 | Twice as many shading units | |||
| Slightly higher texture rate | 32.6 GTexel/s | vs | 17.4 GTexel/s | More than 85% higher texture rate | |||
| More texture mapping units | 48 | vs | 24 | Twice as many texture mapping units | |||
| More compute units | 12 | vs | 6 | Twice as many compute units | |||
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| Lower TDP | 35W | vs | 75W | 2.1x lower TDP | |||
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Features Key features of the Radeon HD 6970M Mac vs 6770M Mac
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
texture rate Speed at which a graphics card can perform texture mapping
floating point performance How fast the gpu can crunch numbers
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 6970M Mac | vs | 6770M Mac |
|---|---|---|---|
| GPU brand | AMD | AMD | |
| GPU name | Blackcomb | Whistler | |
| Market | Laptop | Laptop | |
| Clock speed | 680 MHz | 725 MHz | |
| Is dual GPU | No | No | |
| Reference card | None | None | |
raw performance | |||
| Shading units | 960 | 480 | |
| Texture mapping units | 48 | 24 | |
| Render output processors | 32 | 8 | |
| Compute units | 12 | 6 | |
| Pixel rate | 21.76 GPixel/s | 5.8 GPixel/s | |
| Texture rate | 32.6 GTexel/s | 17.4 GTexel/s | |
| Floating-point performance | 1,305.6 GFLOPS | 696 GFLOPS | |
memory | Radeon HD 6970M Mac | vs | 6770M Mac |
|---|---|---|---|
| Memory clock speed | 900 MHz | 900 MHz | |
| Effective memory clock speed | 3,600 MHz | 3,600 MHz | |
| Memory bus | 256 bit | 128 bit | |
| Memory | 2,048 MB | 512 MB | |
| Memory type | GDDR5 | GDDR5 | |
| Memory bandwidth | 115.2 GB/s | 57.6 GB/s | |
noise and power | |||
| TDP | 75W | 35W | |
