Sapphire 4850x2 2GB PCIe Graphics Card
Based on a 55 nanometre fabrication, the RV770 core pushes the transistor count to 956 million, including 800 Stream Processors. Couple this with a 256-bit memory controller, DX10.1 and Shader model 4.1 support, cooled by a twin fan/dual heatsink design all wrapped up in a sleek aluminium frame and Sapphire appear to have a giant killer on their hands.
Here's what Sapphire had to say:
Designed by SAPPHIRE, the new HD 4850 X2 comprises two complete HD 4850 graphics systems on a single PCI-Express card connected by an on-board PCI Express Gen 2 bridge chip. Each GPU has 800 stream process units and a 256-bit memory interface driving 1GB of GDDR3 memory, making a total of 2GB on-board memory. Four Dual Link DVI outputs are provided as well as TV-Out. This provides a choice of Multi-monitor operation or CrossFire mode in which 3D applications such as games use both on-board GPU’s together to deliver a single accelerated output on the Primary display. In this mode the SAPPHIRE HD 4850 X2 delivers industry leading levels of performance and achieves previously unavailable frame rates in games even at high resolutions with features enabled.
The following specification was taken directly from Sapphire:
Memory Clock: 993 MHz, 1986 Mbps
Interface: PCI Express 2.0 x16 bus interface
Memory: 2x 1024MB /2x256bit GDDR3 memory interface
Cooling: Dual Slot Dual Fan Active Cooler with Fan Speed Control
Connections: HDMI compliant via dongle
Audio: 7.1 Audio Channel Support
Features: Microsoft® DirectX® 10.1 support, Shader Model 4.1 support
Output: Dual DL-DVI-I x 4 +HDTV
Let's take a look at the card itself...