i dont remember registering my xfx 4890 or not 1 year ago. the fan has been off and on and would overheat even if the fan is on. decided to open up the card to clean the heat sink and reapply paste. but then the card stopped working all together soon after. so i can send it in for rma and hope they dont say i have tempered with it so im out of luck and on top of that, hope i registered the card 1 year ago. but i think the better choice is to buy another one and register the card and do not open it this time. hahahah
but now comes to the choices of gpu i have encountered:
the difference i see in the two are the core clock and the memory clock. one says double lifetime warranty but the other doesnt. i always thought that xfx all comes with double lifetime? they both are so similar...which of those two should i get if i were to get the 5850?
i have heard that the 6850 is actually a bit weaker than the 5850 but it is cheaper.
I am running a I5 cpu setup. will eventually oc it to poss 3.6-3.8 on air cooling. 8 gig ddr3 ram.
I want to be able to run multiple games at once including sc2 on ultra and maybe later higher intensive games. I play a mmo which allows me to run multiple clients at once. which i would like to run 4 and play sc2 at same time.
I would like to play on at least 1280x1024 but if i can with my computer specs to play on 1680x1050.
oh yea....im using a 600 watt ocz 80 plus psu. would my psu be of any problems with the choices above?
so overall the choices are 5770, crossfire 5770, 5850, 6850 so far. which do i need or which do u recommend?
if you find a better deal nvidia for my need. im open to anything.
If you have a choice of a card with a double lifetime warranty and a card with no warranty, definitely go with the double lifetime warranty. You could go with a GTX 460 1GB or the HD 6850. From the cards you listed, the 6850 is definitely the best option. You won't have any PSU problems with a SLi/CF setup of those cards.
As far as I know XFX has a dbl lifetime warranty on all their cards. Just register within 30 days. I think I read reviews around the net that put the 6850 behind the 5850 in benchmarks. Only thing it might have going for it is less energy consumption and a little less heat. I have a 5850 and neither is a problem. Cross firing two 5770 might look close in numbers but not in actual performance. Both cards have different architecture. Gaming at 1680x1050 requires more than a gig of memory sometimes. I played @ that res for 3 x years. You should rethink especially if you enable AA, etc.
While that card has good cooling and the price is nice keep in mind that it is the 768mb version of the GTX 460. It has less memory, a smaller bus width and few less ROPs compared to the 1gb card which brings the performance down a notch. You can check out the chart I posted above for the performance of the HD6850 vs GTX 460 1gb vs GTS 460 768mb.
It is up to you but considering your resolution is 1680x1050 the 768mb card should do quite well and if you overclock it then it should have no problems. Usually a gtx 460 will be able to OC around 30% which is impressive.