I have 2 systems I'm trying to upgrade. My intention is to get the most bang for my buck out of Battlefield 3 while keeping muss, fuss, and costs down.
Asus Maximus Formula mobo
Core 2 Duo E8400 3.0GHZ. Stock cooler
4gb ddr2 1066
Radeon HD6870 Asus
Corsair TX750 PSU
EVGA 750I SLI FTW mobo
Core 2 Duo E8400 stable OCd to 3.825GHZ
4gb ddr2 800
EVGA GTX 470 SC
PCP&C Silencer 750 Quad black PSU
The BF3 beta is running ok on system 2, but not as well as I'd like.
-I've considered purchasing a second Gtx 470 from ebay (approx $175). My concerns here are 1)If the PCP&C Silencer will run the OC'd E8400 and SLI 470s. 2) Will the OC'd 8400 bottleneck the SLI Gtx470s. 3) Ditto for the memory.
-I've also considered selling my 470 and putting that money with the $175 earmarked for the SLI card. With this I could buy a high end Gtx570. I know the PSU will run it fine but concerns 2 and 3 still apply.
I haven't had a chance to run BF3 beta on system 1 yet but assume it's similar to slightly inferior to system 2's performance.
-I've considered purchasing a 2nd HD6870 for crossfire. I'm pretty sure the PSU will run this system ok. (unless I'm wrong). My concern here is once again bottlenecking but exacerbated by the stock CPU.
If I could buy these 2 cards and get good performance from dropping them in my systems I'd be in for around $350 and happy. This is my tentative plan unless my concerns listed above bear fruit.