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 |