ATI Radeon HD 3870 X2
Graphics Processor
| GPU Name: | R680 |
|---|---|
| Process Size: | 55 nm |
| Transistors: | 666 million |
| Die Size: | 192 mm² |
Graphics Card
| Released: | Jan 26th, 2008 |
|---|---|
| Production Status: | End-of-life |
| Launch Price: | 449 USD |
| Bus Interface: | PCIe 2.0 x16 |
Clock Speeds
| GPU Clock: | 825 MHz |
|---|---|
| Memory Clock: |
900 MHz
1800 MHz effective |
Memory
| Memory Size: | 512 MB x2 |
|---|---|
| Memory Type: | GDDR4 |
| Memory Bus: | 256 bit x2 |
| Bandwidth: | 57.6 GB/s x2 |
Render Config
| Shading Units: | 320 x2 |
|---|---|
| TMUs: | 16 x2 |
| ROPs: | 16 x2 |
| Compute Units: | 4 x2 |
| Pixel Rate: | 13.2 GPixel/s x2 |
| Texture Rate: | 13.2 GTexel/s x2 |
| Floating-point performance: | 528.0 GFLOPS x2 |
Reference Board
| Slot Width: | Dual-slot |
|---|---|
| Length: | 10.5 inches 267 mm |
| TDP: | 165 W |
| Outputs: | 2x DVI 1x S-Video |
Graphics Features
| DirectX: | 10.1 |
|---|---|
| OpenGL: | 3.3 |
| OpenCL: | 1.0 |
| Shader Model: | 4.1 |
VGA BIOS
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GPU-Z Validation
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Reviews
| Our review database contains 72 reviews of the Radeon HD 3870 X2. |
Retail boards based on this design
| Name | GPU Clock | Memory Clock | Other Changes |
|---|---|---|---|
| ASUS ROG HD 3870 X2 TOP | 851 MHz | 954 MHz | 4x DVI 1x S-Video |
| Sapphire HD 3870 X2 ATOMIC | 860 MHz | 931 MHz | 10.63 inches, Single-slot |