I have had an MSI 7770 ghz edition since last august. Use it on a 1080p monitor. Pretty badass really. It runs very cool and quiet, no matter what overclocking i do to it the temps on the card never break 50c, and the fan never speeds up to the point i can hear it. It overclocks well, up to 1200 on the core and 1300 on the ram. Drivers are good, no issues yet with weird crashing.
It plays every game i've tried on medium to ultra at 1080p and 60fps. For example, tombraider i had to play at medium, while mass effect 3 worked flawlessly on ultra. (tombraider worked good on high as well, though sometimes would drop down to 45fps) civ5 was harder on the card, but even though it only gave me 15fps on the highest settings in civ5, the game actually played smooth as butter at 15fps... atleast i couldn't tell the difference between 15fps and 60 in that game, so it wasn't a big issue.
Overall it's a "good enough" 1080p performer. Don't expect miracles, you will have to turn settings down in some titles at 1080p, but overall it's a really nice low cost 1080p gaming card.