VR-Zone is reporting that R600 is set to be launched on March 9th in two different varieties, the X2800XTX and the X2800XT. The XTX will come with either 512MB or a full 1GB of GDDR4 memory clocked at 2.2GHz with a core clock of 750MHz. The XT will have 512MB of GDDR3 clocked at 1.8GHz with a core clock of just 600MHz.
The XTX is sure to be a monster and I am personally foaming at the mouth in anticipation of its much-delayed arrival. I can't wait to see what they're going to do with all that memory bandwidth. I am, however, slightly concerned with the dramatic gap in core clock between the XT and XTX versions. The X1900XTX and X1900XT were much closer together in terms of core clocks. This suggests some issues getting good yields at 750MHz and I certainly hope the XTX doesn't turn into another phantom edition. On the other hand, it's quite encouraging to see no mention of disabled pipelines on the XT version, which might make for some interesting overclocking opportunities.
Check out the VR-Zone article here:
guest
The thing that matters most now is the Core. We know that the XTX will have 64 Vec4 shaders pipelines (speculation from 6 months ago appears to be true), but what abt the XT? If its the same core, im getting the XT for sure!
EDIT: X2900 scheduled for July-September? Thats interesting.
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guest
Considering ATI's current track record of their video cards demanding higher power supply requirements per card (in comparison to Nvidia's cards), how much wattage will a single card based on the R600 chipset will require?
You know, I bet you that it will probably be anywhere from 500 Watts - 600 Watts and probably 35 Amps - 40 Amps on the 12v rails combined.
Senior Member