The difference between the Ti4400 and Ti4600 is that the 4400 is 275/550 and the 4600 is 300/650 for gpu/memory. I was going to order the Ti4600 but looking over the benchmarks, it does not yield a big enough difference to justify the price. If it was the Gainward, that would be another story since it will be running at 330/750. I also have to pay sales tax so it was either pay $371 or $257. Will I notice the difference between 150 fps or a 140 fps in Q3A, I don't think those extra 10 fps are worth $120. But if you do have a Ti4600 or the 4400, you will be good for at least 6 months till the GF5 comes out.