getting ready for battlefield3, what to do?

October 4, 2011 at 15:09:52
Specs: Windows 7 64b, AMD Phenom X3 8750 / 4gb
I have been playing the bf3 beta and I noticed that when I look from side to side it slows down/blurs up a little bit. I have seen my brother playing the beta on the ps3 everything runs much faster.
I want to know where I can invest some money to make my rig a little better for the game. Also, if I get another HD 4870 and crossfire, should I expect a big difference? What are the requirements for crossfire? Does it have to be the same card?
Here are my specs.
1 x Antec Nine Hundred Black Steel ATX Mid Tower Computer Case
1 x GIGABYTE GA-MA785G-UD3H AM3/AM2+/AM2 AMD 785G HDMI ATX AMD Motherboard
1 x XFX HD-487A-ZWFC Radeon HD 4870 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card
1 x Thermaltake W0106RU 700W Complies with ATX 12V 2.2 & EPS 12V version SLI Certified 80 PLUS Certified Modular Active PFC Power Supply
1 x AMD Phenom X3 8750 Black Edition Toliman 2.4GHz Socket AM2+ 95W Triple-Core Processor HD875ZWCJ3BGH - OEM
1 x Patriot Extreme Performance 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model PDC24G6400ELK
1 x Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
1 x Sunbeam CR-CCTF 120 mm Core-Contact Freezer CPU Cooler, free TX-2 Thermal Paste Included Inside
1 x ASUS VH222H-P Black 21.5" 5ms HDMI Widescreen Full HD 1080P LCD Monitor
Thank you.

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October 4, 2011 at 19:39:40
You should get an answer here, but it probably would have been better to post this under the Gaming forum for more gamers who are familiar with the game and SLI with your video card or similar. You probably will need an upgrade to your power supply. While 700 watts sounds like it should be enough, your power supply divides the 12 Volt power into four rails, each with only 18 Amps and that may not work out very evenly over 2 cards as well as the rest of your system. Look for a power supply with ALL of it's 12 Volt power on a single rail so you can use all of it and supply enough for your video cards, I would not be surprised if you actually have been starving your video card at peak loads all along.

You have to be a little bit crazy to keep you from going insane.

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