Stepping away from the flood of reference models to have hit the market thus far, Diamond has just unveiled its new Radeon HD 4870 XOC Black Edition Graphics card.

Although there are no images of the card floating around just yet, we can ascertain from the press release that the card has a lot to offer. It comes out of the box with a GPU clockspeed of 800MHz and memory speed at 1100MHz. Furthermore, Diamond has used a customized firmware for this card which allows the user to push their card to higher clockrates than normal via the ease of Catalyst Control Center.

Stability is ensured at much higher than normal clockrates thanks to a liquid cooling implementation by none other than Danger Den. Diamond promises availability on the card to be as early as this week.

CHATSWORTH, CA -June 27, 2008- Diamond Multimedia (www.diamondmm.com), a leading manufacturer of PC graphics cards, sound cards and communications products, launched today along with boutique system builder Smoothcreations, and Water cooling mavens, Danger Den the ATI Radeon™ HD 4870 XOC Black Edition graphics card. This card offers exquisite gaming capabilities combined with state of the art efficiency.

The HD 4870 is a smoking gun dual slot card, PCIE 2.0, with 512MB of DDR5 memory and a clock speed of 800 MHz. The memory speed is 1100 MHz and is designed with 800 stream processors. The HD 4870 provides plug-and-play ATI CrossFireX™ upgradeability with up to quad-GPU support. Continuing with ATI's Power Play and 55nm processing technology, this card is the fastest and efficient. "The Diamond Radeon HD 4870 XOC Black Edition was clocked to kick some ass".