At OP:
About... 3 years ago I built my current system - and has since upgraded the GPU and Memory once, along with buying a more powerful PSU.
The CPU is the Core2Duo E4300 - that has been running stable for all that time at 2.7Ghz (it could o.c. even higher, but I didn't want to push it).
I first migrated my 7600GT from a previous build - then upgraded to a 8800 GTS and more recently to a 4850 512mb, then upgraded my screen from 19" LG, to the amazing BenQ G2400W - incredibly well made. Too bad they are discontinued now.
I can run most games on high with 1920x1200 at 30+ frames. Very minor and infrequent framerate issues when I load very busy scenes. The few games I can't - the BenQ monitor supports perfect scaling from 1600x. Most games these days are designed for the consoles - so until the next generation of consoles is released, my system won't benefit from further upgrades.
Your problem is that the AMD was the lesser CPU when you bought your system - it ran slower then Core2Duo per clock - by around 15%, and most Core2Duo's hit 3.0Ghz with an easy O.C. while you are probably stuck around stock speeds. However - the CONSOLE performance is not stronger then yours, and if you don't play CPU heavy games (like RTS with huge number of units/ai - ex: SupCom) you should be FINE.
For example - if you can run a game at 30FPS with your current CPU + GPU at 1440x900, but want to increase the resolution to 1600x or 1920x - the CPU will largely perform the same - it's all about the GPU!
My opinion on your best course of action:
- Upgrade your power supply to a PCP&C, Corsair or BFG LS brand 600W+ (anything else and make sure either HardOCP or JonnyGuru reviewed that exact model and check out the comments on Quality/Ripple. Anandtech has some complete reviews but had issues with showing DQ Quality data, so beware).
A low ripple, high quality PSU will last you through 5+ years of upgrades, and 600W+ is enough to keep buying single-slot cards and even doing some overclocking. (Try to get a model with 5 Year Warranty).
This looks like a good bet:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005
- Buy an ATI card for $120 to 170. Check reviews to maximize that money for DX10. (Probably Radeon 5770 by XFX - but check comparisons to older cards as you don't need DX11 support).
- Buy a 1920x1028 or 1920x1200 monitor - make sure it gets good color accuracy and very low backlighting bleed - check sites like xBitlabs and the Anandtech LCD thread for good reviews. Spend a bit more to get the best quality TN panel you can afford.
These three components will allow you to play most games on High quality right now. The reason for that is that such games are typically designed to run on the current consoles - or midrange cards. This will NOT change until the PS4 and the next XBox are released - which might be several years ahead.
Worst case scenario, a year and a half from now the PS4 is released and you need to upgrade your system to stay with high graphics:
Your Monitor Works. Your PSU works and can support most single-card choices. You squeezed another year and a half out of your build for $120-$170 spent on a card - and have a choice whether to build a CF system with it, or just sell it to someone on the forums.
The consoles right now run the equivalent of an optimized 7800GTX. Whenever they try to improve the graphics just one bit - people start having framerate issues. Most of the conversions to PC have better graphics quality (DA:O, Mass Effect, Borderlands, Assassin's Creed, etc).
My 4850 is the bottleneck right now and I'm forced to play DX9 (which is still great unless you're nitpicking static screenshots). Considering you'll be buying a 5770 for the same money these days, you'll probably have enough power to use DX10.
Reading more of the thread drama - definitely listen to people telling you to buy a budget/midrange card. Anything high-end will be bottlenecked by the LACK OF CHALLENGE in current games, at your resolution. Who cares about 150FPS when you only need the game to stay above 30FPS on your 1920x Monitor. It's not like you'll be forced into an upgrade a year from now either:
While Sony has not released any official information concerning the system's future launch, the generally accepted release date is pegged as late 2012, which would follow the trend of Sony's previous console generations.
Which means a mid-range card bought now will still run high through 2012, and then it's a whole different world
P.S. Plan to replace most of your system, except the power supply and monitor, at summer 2012. The less you spend now to reach tolerable performance levels, the better.