Specifications

	Radeon HD 4870	Radeon HD 4850 1024MB	Radeon HD 4850	Nvidia GeForce GTX 280
Chip	RV770 XT	RV770 PRO	RV770 PRO	G200
Clock	750 MHz	625 MHz	625 MHz	602 MHz
Manufacturing process	55 nm	55 nm	55 nm	65 nm
Transistors	ca. 956 Mio	ca. 956 Mio	ca. 956 Mio	ca. 1.4 Mia
Memory clock	1800 MHz	993 MHz	993 MHz	1107 MHz
Memory	512 MByte GDDR5	1024 MByte GDDR3	512 MByte GDDR3	1024 MByte GDDR3
Memory interface	256 Bit	256 Bit	256 Bit	512 Bit
Memory bandwidth	115200 MByte/s	63552 MByte/s	63552 MByte/s	141696 MByte/s
ROPs	16	16	16	32
Shader processors	160 (5D)	160 (5D)	160 (5D)	240 (1D)
FLOPs	1200 GFLOPs	1000 GFLOPs	1000 GFLOPs	933 GFLOPs
Shader clock	750 MHz	625 MHz	625 MHz	1296 MHz
Shader model	SM 4.1	SM 4.1	SM 4.1	SM 4
Multi GPU	CrossfireX	CrossfireX	CrossfireX	SLI
Interface	PCIe	PCIe	PCIe	PCIe

The Gigabyte GV-R485OC-1GH is based on an all own PCB. As a cooler Gigabyte took a Zalman VF830 with two heatpipes which does not cool the memory chips. The additional power the GV-R485OC-1GH gets via a 6-pin connector.

The measures 24.5 cm lenghtwise and it should therefore be no problem to put it into a small computer case. At the slot plate one can find to Dual-Link DVI-I ports (HDCP compatible) and one HDTV connector. All in vain you are looking for a HDMI- or a display-port-connector.


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