Hardware Museum

Over 20 years of PC history

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Reference RV770 BoardAsus Radeon HD 4830
GPU typeRV770RV770
Manufacturing process55 nm55 nm
Transistors956 million956 million
Die size256 mm2256 mm2
ROPs1616
TMUs4032 (0.8×)
PS / VS | Unified Shaders- / - | 800- / - | 640 (0.8×)
GPU clock750 MHz575 MHz (0.77×)
Pixel / texel fillrate12000 MP/s ; 30000 MT/s9200 MP/s (0.77×) ; 18400 MT/s (0.61×)
SP / DP gigaflops1200 ; 240736 (0.61×) ; 147 (0.61×)
DirectX / OpenGL10.1 ; 3.310.1 ; 3.3
CUDA / OpenCL- ; 1.0- ; 1.0
Memory1024 MB GDDR5512 MB (0.5×) GDDR3
Memory3600 MHz ; 256 bit1800 MHz (0.5×) ; 256 bit
Bandwith115200 MB/s57600 MB/s (0.5×)
InterfacePCI-E 2.0 x16 [8192 MB/s]PCI-E 2.0 x16 [8192 MB/s]
TDP150 W95 W (0.63 ×)
Analog I/O ports1 × S-Video out, 2 × DVI-I1 × S-Video out, 2 × DVI-I
Digital I/O ports2 × DVI-I2 × DVI-I
Independent screens22
Introduce date20082008