If you get a G0 Q6600 for a good deal, it will be the quickest and easiest upgrade, and you WILL see increases across the board, most notably in the newest games, as well as HD playback and encoding. I got one for really cheap, OC'd it to 3.4, and it absolutely smokes my old E6600.
I would say get the 45nm 775 quads but Nvidia is greedy and only supports those on the 7 series.
Not solely nVidia's fault. Intel is partly to blame. nVidia tested the 680i with preproduction Yorkfield samples. They worked. Shortly after,when nVidia refused to share SLI technology with Intel, Intel retaliated by making the production Yorkfields incompatible, even with a BIOS update.
You'll want a quad core to go with a 5870, no doubt about it. Dual cores are going to be a god-awful bottleneck.
I'd go with AMD for this one due to price. You could either go the route mentioned above, which would get you DDR3 ... go the ultra-cheap route and get a low-end AM2+ board, which would let you keep your existing RAM. Something like this
You'll need $400 to go the i5 upgrade path. $200 CPU, $100 mobo, $100 DDR3 RAM. If you're using a 24" or 28" monitor, it's worth the upgrade. What resolution are your games on?
If you have one of the "newer" 680i mobos, it should accept 45nm CPUs. And your mobo easily runs to a 1600 fsb.
An easy cheap upgrade is to sell your E6600 (avg about $65 on eB*y), then throw in a $100 for an E8400 that you can to 3.6 Ghz 1600Mhz FSB. That should give about 20%-25% performance from your 5870, be able to push it 20% harder than than what your E6600 is doing now.
For a "free" upgrade, with your 3 hard drives, if you tried RAID 0, that could also give you slightly faster load times and slightly faster frame rates too if you do FRAPS or Flight Sims or games that record video.
These are just two options of many: Go with an E8400 for $100 (selling the E6600) or $400 for an i5 platform.
I'm a really sad XFX HD 5870 user with a nightmare bottleneck...
please help me!!!!
i have already buy XFX 5870...
but the problem is i have huge cpu bottleneck..
please advice on what motherboard,cpu to upgrade???
less then 200$..all my pocket r empty (T.T)
help me someone..