Solution
The % performance increase from 8600GT => HD 4670 will be significant.

See following examples:

cod4_1920_1200.gif


crysis_1920_1200.gif


stalker_1920_1200.gif



See following review for additional benchmarks:
http://www.techpowerup.com/reviews/Powercolor/HD_4670

hundredislandsboy

Distinguished
All the points above are good. What motherboard do you have and how much overclocking, if any, will it allow?

If you can't overclock, even if you plug in a 9800 GT, you'll get improved performance but you won't see the full performance of the new GPU until you can increase the fsb and the frequency of your CPU.
 
The HD4670 will be about 50% more powerful than the 8600 GTS.
The one you are looking at is a lot more expensive than necessary though;
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814121329
The difference in memory size is entirely meaningless as the HD4670 cannot properly use more than 512mb.

Or for a much better card that's only a bit more than the one you were looking at grab this;
http://www.newegg.ca/Product/Product.aspx?Item=N82E16814150369
It has a 6-pin power connector but barely uses it and should be fine with your PSU.
 

coffeecoffee

Distinguished
Dec 1, 2009
331
0
18,810
The % performance increase from 8600GT => HD 4670 will be significant.
I hate it when people miss the difference between 8600GT and GTS - there is a huge difference in performance. But never the less - nice graphs; they are very self-explanatory.

Neitherway, I'm neither going with a 4670 or a 4770 - depending on prices. I will also be getting a new PSU so I can use my old PSU to build a media center - my older PC is P3 with 4GB DDR2 and a 2400 HD Radeon AGP with a fried PSU - it's outdated but I'm sure it can handle being connected to my 50 inch TV to watch shows in .AVI format.