Powerful graphics card for under $ 175 ?

Hello.
Low cost best options:
AMD: PowerColor AMD Radeon HD 7850 1GB $139.99
Nvidia: EVGA GeForce GTX 650 Ti Boost Superclocked 1GB $149.99
Near $175 with 2GB:
AMD: PowerColor AX7850 2GBD5-DH Radeon HD 7850 2GB $159.99
Nvidia: EVGA 02G-P4-3658-KR GeForce GTX 650 Ti BOOST SuperClocked 2GB $164.99

Now, all cards with the same amount of VRAM (I stronlgy suggest the 2GB version though cause a lot of games including Skyrim needs more than 1200MB VRAM when you apply High Ress textures at 1920x1080), perform similar so its in your choice what side (AMD or Nvidia) do you prefer :).