Radeon HD 7770 vs 5770 Mac |
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Differences What are the advantages of each
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| Higher clock speed | 1,000 MHz | vs | 850 MHz | Around 20% higher clock speed | |||
|---|---|---|---|---|---|---|---|
| Lower TDP | 80W | vs | 108W | More than 25% lower TDP | |||
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| Slightly higher effective memory clock speed | 4,780 MHz | vs | 4,500 MHz | More than 5% higher effective memory clock speed | |||
| Slightly more shading units | 800 | vs | 640 | 160 more shading units | |||
| Slightly higher memory clock speed | 1,195 MHz | vs | 1,125 MHz | More than 5% higher memory clock speed | |||
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Features Key features of the Radeon HD 7770 vs 5770 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 7770 | vs | 5770 Mac |
|---|---|---|---|
| GPU brand | AMD | ATI | |
| GPU name | Cape Verde XT | Juniper | |
| Market | Desktop | Desktop | |
| Clock speed | 1,000 MHz | 850 MHz | |
| Is dual GPU | No | No | |
| Reference card | None | None | |
raw performance | |||
| Shading units | 640 | 800 | |
| Texture mapping units | 40 | 40 | |
| Render output processors | 16 | 16 | |
| Compute units | 10 | 10 | |
| Pixel rate | 16 GPixel/s | 13.6 GPixel/s | |
| Texture rate | 40 GTexel/s | 34 GTexel/s | |
| Floating-point performance | 1,280 GFLOPS | 1,360 GFLOPS | |
memory | Radeon HD 7770 | vs | 5770 Mac |
|---|---|---|---|
| Memory clock speed | 1,125 MHz | 1,195 MHz | |
| Effective memory clock speed | 4,500 MHz | 4,780 MHz | |
| Memory bus | 128 bit | 128 bit | |
| Memory | 1,024 MB | 1,024 MB | |
| Memory type | GDDR5 | GDDR5 | |
| Memory bandwidth | 72 GB/s | 76.48 GB/s | |
noise and power | |||
| TDP | 80W | 108W | |
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