Expectations: Battlefield 3 on Ultra, just like everyone else
1. I am wondering if there is a way to build a computer, for under a grand, and still have it able to play Battlefield 3 on Ultra smoothly? In other words, is there any downgrades I can change to that allow me to still be able to play Battlefield 3 on Ultra Smoothly?
2. I am in need of a Compatibility check for my parts! Please help!
i5 2500k or i5 3570k (Don't need i7 for gaming)
Asrock z77 Extreme 4 LGA 1155 (provided you plan to Crossfire/SLI)
Gigabyte z77-D3h or Asrock z77 Pro3 (if you don't plan to OC)
Sapphire Radeon 7870
A good 850W PSU if you plan to Crossfire; if not 550W should be fine
The rest of your parts are good to go.
Crossfire/SLI means you'll be running 2 or more videocards at the same time.
Z77 boards are preferable because of these components: PCI Express 3.0, USB 3.0, and optimization for a newer generation of CPU's. That being said, it is true that you can find these feature in the older z68 boards. However, they were uncommon features while they are standard in z77 boards.