3. that rig would be pushing that 430W to its limit.
I don't think so in real life.
7850 or 7870~150
I run a i3 and a GTX 460, and I can't pull more than ~280 watts out of the wall, and these new graphic cards are more efficient too. (Just a little.)
This is what I would build.
Part list permalink / Part price breakdown by merchant / Benchmarks
CPU: Intel Core i3-2100 3.1GHz Dual-Core Processor ($120.47 @ Compuvest)
Motherboard: ASRock Z68 Extreme3 Gen3 ATX LGA1155 Motherboard ($129.86 @ Newegg)
Memory: Samsung 8GB (2 x 4GB) DDR3-1600 Memory ($46.99 @ Microcenter)
Hard Drive: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($79.99 @ Amazon)
Video Card: Sapphire Radeon HD 7850 2GB Video Card ($259.99 @ Amazon)
Case: NZXT Source 210 Elite (Black) ATX Mid Tower Case ($46.93 @ NCIX US)
Power Supply: Antec 430W ATX12V / EPS12V Power Supply ($44.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($24.98 @ Newegg)
(Prices include shipping and discounts when available.)
(Generated 2012-04-06 16:08 EDT-0400)
It is a tad overbudget, but it would be worth it.
Power consumption (for the whole build)
Keep in mind, OCCT pulls just about the most power you can ever pull out of a computer.
Edited by raptorxrx - 4/6/12 at 1:13pm