Somehow the Radeon HD 5550 escaped my unblinking gaze (it pierces flesh!) but I have now added it to our database. We got 6 of them linked to Newegg so far but make sure to check the memory type before you buy. The card can come with DDR2, GDDR3 or GDDR5 so make sure you grab the one you want. According to the very few reviews that I found, the HD 5550 is slower than the GT 240 and HD 5570 but faster than the HD 5450. Shocking right?!