What's a better gpu config.?

[astro56]

My question is regarding the gpu configuration
for my new pc.
I am thinking of putting two radeon 4650 in
crossfire x.
Will that be a better configuration than
having one 5770 or 4770?

simple addition and subtraction tells me
the two radeon 4650 in crossfire will be better and they only cost $120, but I would like to know the best choice

 

[IzzyCraft]

Depends on resolution and games, if it's a new pc wont you be using vista or windows 7 in which case a 5770 brings the benefit of DX11. Not too sure on the numbers but i'd think a 5770 would be stronger in most cases over a dual 4650

Also 4770 ~100 bucks in the US
2 4650 is ~120 bucks in the US
5770 is like ~170 bucks in the US

It's the most expensive by far

If you have no need for dx11 i would think the best thing for you would be a 4870 512mb edition for about 130 bucks US

 

[megamanx00]

No. Two 4650s in CF preform about as well as a Radeon 4770 and a little below a Radeon 4850. Considering that a single 4850 can be had for around $100, I would go with that. A 5750 or 5770 would be a better option though as they are both faster still and have DX11.

 

[astro56]

I was looking into the 5770 and 4770, and I liked both, but my only problem was that they were both 128-bit. I'm not sure if it would be a wise decision to chose either of those two. However, I would like to know the difference between 128-bit and 256-bit.