The higher resolution tests with filters on show how much of a short-lived "price/performance king" this CF HD4770 system is.
Lack of RAM is a problem that just gets exponentially worse with time, and several developers have said that RAM amount will play an increasingly important role in upcoming games.

The lack of memory is pushing back these GPUs a lot, Unless it's a system to use with a 720p LCD TV/projector.
2*HD4770 1GB would make sense but then again, higher-density GDDR5 is very expensive (not to mention almost unexistent). It would make the whole bang-for-the-buck theme of this GPU a bit pointless.

The current ATI line-up is quite good as it is:
- $100: get the HD4770
- $150: get the HD4870 512MB
- $220: get the HD4890 1GB




If some retailer comes out with cheap (>$120) 1GB HD4770s, then Crossfiring them would be a good idea. But remember we would be already limiting our system's upgradeability by putting two graphics cards in it right from the start.