Radeon HD 3850 X2 vs GeForce GT 630 |
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Differences What are the advantages of each
| |||||||
| Is dual GPU | Yes | vs | No | About half of graphics cards are dual GPU | |||
|---|---|---|---|---|---|---|---|
| Higher memory bandwidth | 105.98 GB/s | vs | 51.2 GB/s | More than 2x higher memory bandwidth | |||
| Significantly more render output processors | 32 | vs | 4 | 28 more render output processors | |||
| Much wider memory bus | 512 bit | vs | 128 bit | 4x wider memory bus | |||
| Higher pixel rate | 21.4 GPixel/s | vs | 3.24 GPixel/s | More than 6.5x higher pixel rate | |||
| Better floating-point performance | 856.4 GFLOPS | vs | 311.04 GFLOPS | More than 2.8x better floating-point performance | |||
| More shading units | 640 | vs | 96 | 544 more shading units | |||
| More texture mapping units | 32 | vs | 16 | Twice as many texture mapping units | |||
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| Significantly higher effective memory clock speed | 3,200 MHz | vs | 1,656 MHz | Around 95% higher effective memory clock speed | |||
| Higher clock speed | 810 MHz | vs | 669 MHz | More than 20% higher clock speed | |||
| Lower TDP | 65W | vs | 140W | 2.2x lower TDP | |||
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Features Key features of the Radeon HD 3850 X2 vs GeForce GT 630
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 3850 X2 | vs | GeForce GT 630 |
|---|---|---|---|
| GPU brand | ATI | Nvidia | |
| GPU name | RV670 | GF108 | |
| Market | Desktop | Desktop | |
| Clock speed | 669 MHz | 810 MHz | |
| Is dual GPU | Yes | No | |
| Reference card | None | Nvidia GeForce GT 630 810 MHz 1 GB | |
raw performance | |||
| Shading units | 640 | 96 | |
| Texture mapping units | 32 | 16 | |
| Render output processors | 32 | 4 | |
| Pixel rate | 21.4 GPixel/s | 3.24 GPixel/s | |
| Texture rate | 21.4 GTexel/s | 12.96 GTexel/s | |
| Floating-point performance | 856.4 GFLOPS | 311.04 GFLOPS | |
memory | Radeon HD 3850 X2 | vs | GeForce GT 630 |
|---|---|---|---|
| Memory clock speed | 828 MHz | 800 MHz | |
| Effective memory clock speed | 1,656 MHz | 3,200 MHz | |
| Memory bus | 512 bit | 128 bit | |
| Memory | 1,024 MB | 1,024 MB | |
| Memory type | GDDR3 | GDDR5 | |
| Memory bandwidth | 105.98 GB/s | 51.2 GB/s | |
noise and power | |||
| TDP | 140W | 65W | |
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