Another gain on the PCIe 2.0 front is that PCIe 2.0 will also double the power available from the motherboard to the card.
As far as price goes the pcie2.0 card is a better deal because it is cheaper... but i am very leary about purchasing a cheaper card that has a new type of interface and uses backwards compatability
I understand this, but nVidia is doing the exact same thing, the 8800GT exceeds the 8800GTS in terms of performance, yet it is cheaper.
ATI is going to cease production of the HD2900XT and nVidia is going to do the same for the current 8800GTS series, if they havn't already done so.
I think we witnessing the dawn of a price war in the GPU segment.
Other things to consider about the HD2900XT vs. HD3870
What the HD3870 has that the HD2900XT doesn't
-UVD (if you are unsure of what this is just ask)
-55nm manufacturing process
-lower power requirements
What the HD2900XT has that the HD3870 doesn't
-512 bit memory bus (no card needs one this high at the moment).
jrm20, the reason why many reviews conflict with one another is because the 7.10 drivers did not fuction with the card, there were beta drivers at the time and many review sites did not contact ATI to receive them. To get an accurate estimate of how this card should preform, you need to look at the build of the RC2 drivers (some people were even using RC1 drivers). If your using the right drivers, the HD3870 should be a little bit better then the HD2900XT, but we are talking very little. Even as resolutions go up, the 256 bit memory bus is no bottleneck.
If your still worried about the PSU take a look at this review.http://www.hardwarec....html#post26213
Scroll down to number 15, while I know the layout seems unproffesional, this guy knows his stuff, and these guys do it for free. The reason why I like this, less likely to have a bias towards a particular brand due to payments. Anyways, if you scroll down to 15, you can see that this card will consume ~95W less then the HD3870, when the entire build is taken into consideration. Keep in mind this is the power being drawn from the wall, as the load increases on the PSU effciancy takes a dive, so in reality we are probably looking closer to a ~85W difference between the two cards, which is quite significant.
Edited by james_8970, 28 November 2007 - 03:29 PM.