anyone having problems with comments (i dislike it too) on the article pages click the 'view thread in forum' link. you'll lose voting option but comments' display, quoting and reply are much easier.
it's been a while since the last entry level card roundup. actually it's been such a long time that i forgot when the last time it happened.
it was good to see how the radeon 7750 aged so well. at first, the 7770 was priced repulsively but it is much, much better now. along with the driver improvements, upcoming mantle optimizations, amd's value segment has a lot of good things to look forward to.
but. after reading this article, it seems like amd is replacing existing radeon hd 77xx series with under performing but overpriced successors. it'll help clear the current stock of older cards (which have come down in price in the cource of their cycle), but the new ones shoulda been either cheaper or more powerful. due to 7770, they don't seem worth buying. moreover, if you look for, you'll find cheap deals on 7790 cards almost everywhere (that i looked). 7790 and 7770 use more power but not so much more that entry level pcs with cheaper psus can't run them.
edit: i know it was a gaming roundup but i missed a couple of tests. the blu-ray/hd video playback test with card voltage, heat/temp and power measurement, and multi monitor power use. these cards usually get into htpcs, living room pcs and cheap multimonitor rigs(non-multi-display-gaming). unlike nvidia cards, gcn-based cards have a tendency to use way too much voltage and power for bluray, i don't think gcn 1.1 has fixed that. and may be a little bit of 4k video playback tests.