As with the Radeon HD 4870 X2, the 4850 X2 is a dual designed chip 3D card. Powered by two Radeon HD 4850 GPUs, the X2 version is effectively a self-contained Crossfire setup. It only needed to be connected by this card directly to your PC power supply via one six-pin and one eight-pin PCI Express power input and as a double-wide card, considering a fair amount of space inside your PC. Designed by SAPPHIRE for 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 having 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 provided for purpose as well as for TV-Out. This makes 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 with industry leading levels of performance

Some special attractions involves 2 GB or 1GB of GDDR3 memory and 2.0 Tera FLOPS of GPU powerDirectX10.1 and PCI Express,2.0 support 1600 stream processing units and 2 x 256-bit memory interface ,24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering Dual mode, ATI CrossFireX multi-GPU support for highly scalable performance ,Dynamic geometry acceleration and DVD Up scaling Game physics processing capability or Dynamic Contrast ATI Avivo HD video and display technology and Dynamic power management with ATI Power Playtechnology.It also shows unified Video Decoder 2 (UVD 2) for Blu-ray and HD Video Accelerated Video Trans coding(AVT) with Built-in HDMI with 7.1 surround sound support.

However, while putting a game on one screen and a Web-based map and a walkthrough on the others. An idea rises of showing a spreadsheet, e-mail, and multiple Web pages at the same time will make many office functionaries drool. With each port dual-link DVI is enabled, which unable to connect four 30-inch LCDs to one Radeon HD 4850 X.There is a possibility to test four 30-inchers, but we were pleased with the experience of connecting the 24-inch, 22-inch, and pair of 19-inch displays we had on hand. Finally, being a member of AMD's Radeon HD 4000-series, this card has all of the DirectX 10.1, stream processing with Havok Physics acceleration inherent to all the chips in that family. When actually seeing these features have a widespread software impact, we'll be sure to write about them.