Diamond Radeon HD 4870 XOC Black Edition
Vote: Thumbs Down or Thumbs Up Our Rating: 96% Manufacturer: Diamond Multimedia
The Card
Diamond’s card resembles every other HD 4870 we’ve already taken the time to look at. Most of the PCB is of course taken up with a giant heatsink that runs from one end of the card to the other.
The only thing we can see that Diamond has done is place their logo onto the fan to let you know what brand it is.

It’s worth noting that on the Diamond website we have a different picture that shows a heap of skulls on the front.
Looking around the card, we continue to see those standard reference features. The back of the card has two 6-pin PCI Express power connectors while across the top we have two Crossfire connectors.
The I/O side of things gives us two Dual-Link DVI connectors along with a single TV-Out port. The card is of course a dual-slot one and the second part of the bracket has a heap of holes in it to let the hot air escape from the card.
Specifications
This is where the card begins to get pretty juicy. The standard core clock on the HD 4870 is 750MHz. Diamond have given us a 50MHz bump to 800MHz. While this is getting up there, we’ve seen other cards offer this. The 512MB of GDDR5 memory, though, moves from 900MHz (3600MHz Data Rate) to a whopping 1100MHz (4400MHz Data Rate) which is nothing short of impressive.








