I found a 7.8" 7850 that might fit. My question is, is it worth paying double? Looking over the specs, it doesn't look as though the performance is anywhere near that.
I'm also thinking about the long-term economics: If I buy a $200 video card now, in two years it will be worth about $75 based on market history. If I buy a $100 video card, it will be worth $50.
I will suffer less depreciation on the 7770 I believe and I'm not convinced that the performance is that much different. Looking over Anandtech's GPU12 benches, overall the 7770 appears to be 2/3s as fast as the 7850, especially if I commit myself to not doing memory-bandwidth intensive things like 4xFSAA at 1080p.
Does anyone have a dissenting opinion? I've been out of PC gaming since the GeForce 6800GT was hot, so I'm certainly not trying to pretend like I know what's up. I do however understand the kinds of tradeoffs I'm talking about.
My goal is to make it on this rig for two years and then move on to a new, purpose-built desktop PC. My expectation is to play on Medium-ish now, trending towards Low at the end of my lifespan. I think that's a realistic view on this class of video card.