The AMD Phenom II X6 1090T is way better than the AMD Phenom II X6 1045T! AMD Phenom II X6 1090T costs $226.93 and the AMD FX-8120 Eight-Core which is much better than both AMD Phenom II X6 1090T and 1045T costs $199.99! I would recommend buying the AMD FX-8120 Eight-Core processor which is better and cheaper than the 1090T and 1045T in every aspect! If you have a choice only between the 1090T and the 1045T I would tell you to buy the 1090T which is better then the 1045T although it's a lot more expensive! The difference between the performance of the 1090T and the 1045T isn't small so it's worth it to buy the 1090T!