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Features Key features of the Radeon HD 3870
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
Reviews Word on the street for the Radeon HD 3870
Specifications Full list of technical specs
gpu
| GPU brand | ATI |
|---|---|
| GPU name | RV670 XT |
| Market | Desktop |
| Clock speed | 825 MHz |
| Is dual GPU | No |
| Reference card | ATi Radeon HD 3870 777 MHz 512 MB |
raw performance
| Shading units | 320 |
|---|---|
| Texture mapping units | 16 |
| Render output processors | 16 |
| Compute units | 4 |
| Pixel rate | 13.2 GPixel/s |
| Texture rate | 13.2 GTexel/s |
| Floating-point performance | 528 GFLOPS |
memory
| Memory clock speed | 1,200 MHz |
|---|---|
| Effective memory clock speed | 2,400 MHz |
| Memory bus | 256 bit |
| Memory | 512 MB |
| Memory type | GDDR4 |
| Memory bandwidth | 76.8 GB/s |
noise and power
| TDP | 106W |
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Competitors
 | ATi Radeon HD 5450
|
 | AMD Radeon R7 240
|
 | Sapphire Radeon R5 230
|
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 | Nvidia GeForce GT 9800
|
 | ASUS GeForce GT 8800
|
 | EVGA GeForce GTX+ 9800
|
Other Radeon HD 3870s
 | Diamond Radeon HD 3870 Ruby Edition
|
 | ASUS Radeon HD 3870 Magic
|
 | Sapphire Radeon HD 3870 Ultimate
|
