alvine :
hey guys so I have a $500 budget to upgrade my graphics
I'm looking at a single gtx 680 or two 7850's in crossfire to fit my bill
I can't seem to find benchmark comparing these two combinations
Couple of considerations:
1. In past years, I'd always recommend the top single card with the "plan" to upgrade to a 2nd one later ..... it almost never happened.....by the time someone came back looking to upgrade, they wanted a complete new system.
2. These days I almost always use two mid range cards ..... most recent case histories in point:
One 580 or two 560 Tis ......considerations
a) The 560 design was extremely robust leading most vendors to release a beefed up PCB design with 7 or more phase VRM and larger coolers which were able to hit 30% OC's....the 580's could not do that much.
b) The 580 got 616 fps in Guru3D' game test suite.....two 560 Ti (900Mhz - 10 % factory OC) get 862 ....and then they could be overclocked another 20% (personally I stopped at a 25% overall OC).
c) The two 560's gave ya 40% more fps "outta the box".
d) Buying a 2nd 580 "someday down the line" gave ya just a measly 10% more fps than the two 560's..... I found it hard to pay $1,000 for two 580s versus $410 for two 900 Mhz 560's to get just q 10% improvement.....especially when the 560's had another 20% of OC headroom.
Moving on to today .... I'm still seeing driver issues with the 78xx and 79xx series in CF. Secondly, I would recommend waiting for the non-reference designs from vendors which will no doubt include beefed up VRM';s and more efficient coolers. I expect we will see these from both AMD and nVidia around mid June.
The 560 sold more than all the 68xx and 69xx series cards put together.....almost twice as much in fact. I think the 7850 could be a card of that similar impact on the market place...... much of course will depend on what nVidia's 660 looks like. But at this point in time, Im hesitant to jump on the 7850 bandwagon until the driver bugaboos get ironed out, we see the non-reference designs and of course we see what the green team puts up next to it.