General Information |
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|---|---|
| GPU Name: | ATI Radeon HD 4870 X2 |
| Generation: | Radeon R700 (HD 4800) |
| Transistors: | 956 million |
| Die Size: | 256 mm2 |
| Process Size: | 55 nm |
| Architecture: | TeraScale |
| Foundry: | TSMC |
| Release Date: | Aug 12th, 2008 |
Graphics Specifications |
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|---|---|
| GPU Clock: | 750 MHz |
| Shading Units: | 800 |
| Compute Units: | 10.0 |
| TMUs: | 40 |
| ROPs: | 16 |
| L1 Cache: | 16 KB (per CU) |
| L2 Cache: | 256 KB |
Graphics Memory |
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|---|---|
| Memory Clock: | 900 MHz |
| Memory Size: | 1024 MB |
| Memory Type: | GDDR5 |
| Memory Bus: | 256 bit |
| Bandwidth: | 115.2 GB/s |
Features |
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|---|---|
| Shader Model: | 4.1 |
| OpenCL: | 1.1 |
| OpenGL: | 3.3 |
| DirectX: | 10.1 (10_1) |
Performance |
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|---|---|
| Pixel Rate: | 12.00 GPixel/s |
| Texture Rate: | 30.00 GTexel/s |
| FP32 (float) performance: | 1,200 GFLOPS |
| FP64 (double) performance: | 240.0 GFLOPS (1:5) |
Founder Edition |
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|---|---|
| TDP: | 286 W |
| Suggested PSU: | 600 W |
| Power Connectors: | 1x 6-pin + 1x 8-pin |
| Slot Width: | Dual-slot |
| Length: | 267 mm 10.5 inches |
| Height: | 38 mm 1.5 inches |
| Width: | 111 mm 4.4 inches |