Over 20 years of PC history
| Reference RV770 Board | Asus Radeon HD 4830 | |
|---|---|---|
| GPU type | RV770 | RV770 |
| Manufacturing process | 55 nm | 55 nm |
| Transistors | 956 million | 956 million |
| Die size | 256 mm2 | 256 mm2 |
| ROPs | 16 | 16 |
| TMUs | 40 | 32 (0.8×) |
| PS / VS | Unified Shaders | - / - | 800 | - / - | 640 (0.8×) |
| GPU clock | 750 MHz | 575 MHz (0.77×) |
| Pixel / texel fillrate | 12 000 MP/s ; 30 000 MT/s | 9 200 MP/s (0.75×) ; 18 400 MT/s (0.6×) |
| SP / DP gigaflops | 1 200 ; 240 | 736 (736×) ; 147 (0.61×) |
| DirectX / OpenGL | 10.1 ; 3.3 | 10.1 ; 3.3 |
| CUDA / OpenCL | - ; 1.0 | - ; 1.0 |
| Memory | 1 024 MB GDDR5 | 512 MB (512×) GDDR3 |
| Memory | 3 600 MHz ; 256 bit | 1 800 MHz (0.33×) ; 256 bit |
| Bandwith | 115 200 MB/s | 57 600 MB/s (0.5×) |
| Interface | PCI-E 2.0 x16 [8 192 MB/s] | PCI-E 2.0 x16 [8 192 MB/s] |
| TDP | 150 W | 95 W (0.63 ×) |
| Analog I/O ports | 1 × S-Video out, 2 × DVI-I | 1 × S-Video out, 2 × DVI-I |
| Digital I/O ports | 2 × DVI-I | 2 × DVI-I |
| Independent screens | 2 | 2 |
| Introduce date | 2008 | 2008 |