I currently have an ATI X1950 Pro that I want to upgrade to an HD 4870. I am running this on a Gigabyte 965P-DS3/S3 revision 3.3 mb. My question is, i noticed the 4870 is built for use on a PCI-E 2.0 system. Is my current MB able to support PCI-E 2.0, if not, is it still a good idea to get the HD 4870 to use with this mb.
If you have plans to upgrade your mobo anytime in the feature, then it wouldn't hurt to buy the 4870. Also, the 4870 will still perform better then any PCI-E 1.1 card you'll find. You just won't be able to use the full capabilities of the card. I'm not sure what you mean by "would it fit my applications better?" I'm not sure what your applications are so I can't answer that for you.
As far as I know, single HD4870 will not use the full bandwidth of PCI-E 1.1, much less 2.0.
It does need a fair bit of power though and the stock cooler can be either hot or loud if the fan speed is increased beyond 35% through the CCC Overdrive.
What is your CPU and what resoloution do you play at?
@ox1574; Not better, just a better match.
I do n`t think your processor will drive a 4870 at its best but the faster 4870 will be viable for longer, it just depends on how long you want to keep the system. For a year or so, the 4850/GTX9800 will serve well, for longer, the 4870 would be better.