Radeon HD 5870 Mac vs GeForce GT 120 Mac |
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Differences What are the advantages of each
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| Much higher effective memory clock speed | 4,780 MHz | vs | 1,600 MHz | Around 3x higher effective memory clock speed | |||
|---|---|---|---|---|---|---|---|
| Much higher memory bandwidth | 153 GB/s | vs | 25.6 GB/s | Around 6x higher memory bandwidth | |||
| Higher clock speed | 850 MHz | vs | 550 MHz | Around 55% higher clock speed | |||
| Significantly better floating-point performance | 2,720 GFLOPS | vs | 89.6 GFLOPS | More than 30.2x better floating-point performance | |||
| Many more shading units | 1,600 | vs | 32 | 1568 more shading units | |||
| Higher texture rate | 68 GTexel/s | vs | 8.8 GTexel/s | Around 7.8x higher texture rate | |||
| Higher pixel rate | 27.2 GPixel/s | vs | 4.4 GPixel/s | Around 6.2x higher pixel rate | |||
| Significantly more texture mapping units | 80 | vs | 16 | 64 more texture mapping units | |||
| Significantly more render output processors | 32 | vs | 8 | 24 more render output processors | |||
| Significantly higher memory clock speed | 1,195 MHz | vs | 800 MHz | Around 50% higher memory clock speed | |||
| Wider memory bus | 256 bit | vs | 128 bit | 2x wider memory bus | |||
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| Much lower TDP | 50W | vs | 228W | 4.6x lower TDP | |||
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Features Key features of the Radeon HD 5870 Mac vs GeForce GT 120 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 5870 Mac | vs | GeForce GT 120 Mac |
|---|---|---|---|
| GPU brand | ATI | Nvidia | |
| GPU name | Cypress | G96 C1 | |
| Market | Desktop | Desktop | |
| Clock speed | 850 MHz | 550 MHz | |
| Is dual GPU | No | No | |
| Reference card | None | None | |
raw performance | |||
| Shading units | 1,600 | 32 | |
| Texture mapping units | 80 | 16 | |
| Render output processors | 32 | 8 | |
| Pixel rate | 27.2 GPixel/s | 4.4 GPixel/s | |
| Texture rate | 68 GTexel/s | 8.8 GTexel/s | |
| Floating-point performance | 2,720 GFLOPS | 89.6 GFLOPS | |
memory | Radeon HD 5870 Mac | vs | GeForce GT 120 Mac |
|---|---|---|---|
| Memory clock speed | 1,195 MHz | 800 MHz | |
| Effective memory clock speed | 4,780 MHz | 1,600 MHz | |
| Memory bus | 256 bit | 128 bit | |
| Memory | 1,024 MB | 512 MB | |
| Memory type | GDDR5 | GDDR3 | |
| Memory bandwidth | 153 GB/s | 25.6 GB/s | |
noise and power | |||
| TDP | 228W | 50W | |
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