AMD's new Radeon HD 7750 is the lower cost version of the HD 7770. Naturally, lower price means lower performance, but the ratio is in favour of the HD 7750. Price/performance considered the card is a better deal than the Radeon HD 7770. In terms of absolute performance the card offers framerates similar to the last generation HD 5770/6770.
Thanks to AMD's new 28 nm process and the advanced power consumption reduction features of the card we see the card claim the number one performance per Watt spot of all graphics cards we ever tested. It's really amazing: when compared to the NVIDIA GTX 480, the card is three times as power efficient. Even compared to less power hungry designs, like the whole AMD HD 5000 and 6000 Series, the card is still almost twice as efficient. With less than 50 Watts consumed during typical gaming the card does not need any additional power inputs. This makes it a good candidate to upgrade an older, weaker PC system.
Overclocking potential on the card is good, but the gains from higher clocks are smaller than expected. HIS is using the same cooler that they used on many HD 5750 cards, but this is no problem at all thanks to the low heat output of the card. In terms of fan noise HIS did a great job tuning noise levels of their thermal solution. The card is exceedingly quiet in idle and load.
Price-wise the HD 7750 will have a difficult start as there are many alternatives in this market segment that offer better price/performance. For example the aging HD 5770 comes at the same price, yet offers a bit more performance. If you are willing to buy used you can even save more money as lots of people are looking to upgrade to a new shiny card with a big name - your opportunity to maximize Performance per Dollar. Compared to the HD 7770 which is surrounded by tough competition from all sides, the HD 7750 has it a bit easier. NVIDIA does not have anything better at around the $100 price point, and most of the AMD cards with better price/performance will also cost more than the HD 7750. Nevertheless, I think the HD 7750 is overpriced at its current $110 price point. Something below $100 seems more reasonable to me.