InsideHW.com posted a review on the AMD Radeon HD 2600XT and HD 2400XT

Although the initial information was that AMD was going to launch the entire product gamma at once, from the strongest HD 2900XT all the way down to the weakest HD 2400Pro, something obviously went wrong. Therefore, it is only now that we received samples of their mid-range cards. However, first test leaves plenty to be desired.

AMD Radeon HD 2600XT and HD 2400XT Review