I recently got this card from a member on XS but it just isn't fast enough for me in Metro 2033.
I would like to trade my Diamond HD 4870 1gb equipped with an Accelero Twin Turbo Pro and cash for an HD 6850 or HD 5850
Here is a rough idea of how much cash I'd put forth for different card along with my card:
HD6850 $30 - $40
This card runs 24/7 @ 830/935 with 0 issues. It will run 850 core for short gaming sessions of 45m to an hour but eventually it wil crash at that speed but that is likely due to my piss poor case ventilation ( using an NSK4400 with just a silent 50cfm 120mm rear fan ) so if you have a case with good ventilation then this card will most assuredly run higher clocks stable but in my current case the heat builds up too fast.
I do not have the stock cooler for this card or any accessories as that is how I received it.
Here is what I run with the card @ 1920x1080 on high detail using an E7200 OverClocked to 3ghz in a system with 4gb memory:
Metro 2033 in DX10 mode
--- No AA, max detail and AF
--- I can run the game in 4x MSAA mode but my FPS drops between 19 and high 20's which is why I want a faster card
STALKER Shadow of Chernobyl with the complete 2009 mod which is huge graphics mod that makes the game look as god as Metro 2033
--- 2x SS AA on max detail and AF
Team Fortress 2
--- 8x Edge Detect SS AA and 3x Temporal AA, max detail and AF
--- 2x SS AA with max detail and AF
Fallout 3 loaded with HD mods
--- 4x Edge Detect SS AA, max detail and AF
Are you sure that computer can't upgrade to a Core 2 Duo CPU? Most P4 rigs can. I upgraded a Pentium 4 single core (HT) at work to a Core 2 Quad. That upgrade would make it a perfectly adequate computer. Also, if you're willing to spend $30 on the graphics, you can get an 8800GT sometimes. Those will actually play almost all games while a 7900GTX is about 1/2 as fast.
You may as well aim higher on your upgrade since what you're planning will spend money while yielding a computer that's still terrible (sorry if that sounds rude).
I have a 7950GT you can have for free (pay $5 shipping). The catch...you'll need to be good at soldering to reattach a capacitor that fell off.
The motherboard in the machine is an MSI P4N Sli using the old Nforce4 Sli chipset so C2D isn't possible on that chipset on any board.
As far as the futility of the upgrade, I know. Trust me, I know. It took me an hour and a half of my time just to convince her to allow me to upgrade her CPU and GPU since she is trying to play newer games on that crap box anyways.
She is one of those paranoid people that swore for starters that she needed the Corsair GS700 700w PSU she paid $200 for installed @ BestBuy and swore she might even need a 1kw PSU. She also is too worried about losing her programs for school even though I told her I can generalize the OS and make it boot under a new mobo and it would just need the OS re-activated but she just won't let me upgrade her mobo to something that takes a C2D :-/