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| Radeon HD 5870 Mac vs 5770 Mac |
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Differences What are the advantages of each
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Significantly higher memory bandwidth | 153 GB/s | vs | 76.48 GB/s | More than 2x higher memory bandwidth | |||
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Better floating-point performance | 2,720 GFLOPS | vs | 1,360 GFLOPS | 2x better floating-point performance | |||
Higher texture rate | 68 GTexel/s | vs | 34 GTexel/s | 2x higher texture rate | |||
More shading units | 1,600 | vs | 800 | Twice as many shading units | |||
Higher pixel rate | 27.2 GPixel/s | vs | 13.6 GPixel/s | 2x higher pixel rate | |||
More render output processors | 32 | vs | 16 | Twice as many render output processors | |||
More texture mapping units | 80 | vs | 40 | Twice as many texture mapping units | |||
More compute units | 20 | vs | 10 | Twice as many compute units | |||
Wider memory bus | 256 bit | vs | 128 bit | 2x wider memory bus | |||
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Significantly lower TDP | 108W | vs | 228W | 2.1x lower TDP |
Features Key features of the Radeon HD 5870 Mac vs 5770 Mac
memory bandwidth Rate at which data can be read from or stored in onboard memory
Radeon HD 5870 Mac
153 GB/s
Radeon HD 5770 Mac
76.48 GB/s
pixel rate Number of pixels a graphics card can render to the screen every second
Radeon HD 5870 Mac
27.2 GPixel/s
Radeon HD 5770 Mac
13.6 GPixel/s
texture rate Speed at which a graphics card can perform texture mapping
Radeon HD 5870 Mac
68 GTexel/s
Radeon HD 5770 Mac
34 GTexel/s
floating point performance How fast the gpu can crunch numbers
Radeon HD 5870 Mac
2,720 GFLOPS
Radeon HD 5770 Mac
1,360 GFLOPS
shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading
Radeon HD 5870 Mac
1,600
texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes
Specifications Full list of technical specs
gpu | Radeon HD 5870 Mac | vs | 5770 Mac |
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GPU brand | ATI | ATI | |
GPU name | Cypress | Juniper | |
Market | Desktop | Desktop | |
Clock speed | 850 MHz | 850 MHz | |
Is dual GPU | No | No | |
Reference card | None | None | |
raw performance | |||
Shading units | 1,600 | 800 | |
Texture mapping units | 80 | 40 | |
Render output processors | 32 | 16 | |
Compute units | 20 | 10 | |
Pixel rate | 27.2 GPixel/s | 13.6 GPixel/s | |
Texture rate | 68 GTexel/s | 34 GTexel/s | |
Floating-point performance | 2,720 GFLOPS | 1,360 GFLOPS |
memory | Radeon HD 5870 Mac | vs | 5770 Mac |
---|---|---|---|
Memory clock speed | 1,195 MHz | 1,195 MHz | |
Effective memory clock speed | 4,780 MHz | 4,780 MHz | |
Memory bus | 256 bit | 128 bit | |
Memory | 1,024 MB | 1,024 MB | |
Memory type | GDDR5 | GDDR5 | |
Memory bandwidth | 153 GB/s | 76.48 GB/s | |
noise and power | |||
TDP | 228W | 108W |
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Showing 1 comment.
mac head (11:42 PM, May 2, 2014)