What is better? EVGA GTS450 SC or SApphire 5770 VApor-x? Please leave a detailed explanation?

I wanted to buy one of these, but i don't know which one is better for gaming?|||The 5770 will get high fps on most games, however the GTS450 has PhysX, 3D, and CUDA video processing technologies. So its your choice, if you're not using a 3D monitor or you don't have any games that use that go ahead and take the 5770, that vapor-x is a overclocked version of it too that performs great. If you do want those technologies with nvidia, go and take the next level and go with the evga 460. i'd recommend that one over the 5770, and it will play anything, including crysis maxed out