GPU for gaming at 1920x1080 on a 1080p 55" lcd tv

[crashingmedic]

I currently have the following build set up for my wife...

Q6600 @ 3.0 Ghz (stock voltage)
Artic Cooling Freezer 7 Pro
ASROCK Penryn 1600SLI-110db (Nvidia 650i north bridge)
XFX HD 5770 1GB DDR5
WD Blue 500GB x2
4GB (2X2GB) PC2 6400 Corsair XMS2 (DDR2800)
LG DVDRW
Antec 550 Watt True Power Trio
Antec NineHundred Ultimate Gamer Case
Acer AL2223W 22” LCD
XP Pro 32-Bit

I have decided to take this pc and use our 55" lcd tv as the display dedicating this pc for our media center. I am unsure if my hd 5770 will be able to handle this load. It plays most games well but my Acer lcd monitor is 1680x1050 and not full hd at 1920x1080. I've read that this card does well up to that point and then starts to show it's limitations due to the 128 bit interface.

So, I'm looking at upgrading my video card to solve this problem (if it is the case). My budget for a new GPU is $250 max.

The motherboard is an Nvidia 650i board and the new GTX 460 (256 bit 1GB version) looks really good. However, since it only has a mHDMI connector I'm not sure it will work as well as a regular HDMI port on the ATI 5*** cards. Would I better off upgrading to say an ATI HD 5850 or will the new Nvidia cards do the job of transferring both an audio and video signal through the mHDMI port?

I also realize that I will most likely have to upgrade the power supply as well and will be going with a Coolmax cug-950b 950 watt unit as I have this unit in my personal pc.

Any and all opinions are helpful. I will be purchasing a gpu within the next 2 weeks. Thanks...EWB wadeboxjr@marten-enterprises.com

 

[crashingmedic]

Oh, the games I am playing are older games like Quake 4, Doom 3 and some newer games like Bioshock, Street Fighter 4 (lots of fun with my 2 sons), COD4, and several others. I would like to be able to play the newer games like Crysis, Metro 2033 and some of the newer racing games and would like them on high settings (not enthusiast but definitely above medium).

I'm figuring a gpu & ps upgrade will almost certainly be mandatory to do this.

 

[jaguarskx]

Since you do not have a XFire compatible mobo, my recommendation would be to get the HD 5850; you will not need to upgrade your PSU. However...

People have been gaming @ 1920 x 1200 before the HD 5xxx series came out. Your HD 5770 is basically equivalent to the HD 4870. I suggest you play those older games with your HD 5770 before actually buying HD 5850. Doing so might save you some money.......