Which is better?

/facepalm

We need more information. Which is better for what? Gaming? Internet surfing...Cleaning the laundry?

I wasn't referring to the actual advice part. I was just making a comment about your attitude.

Hello Demonn,

Ranking:

1. 5750=4850 (4850 is slightly faster, but is older, more energy hungry, and runs hotter--its also $30 cheaper)
2. 4770 (not a good deal at $110 when you can get the 4850 for $99)
3 5670 (fastest reference card you can get without a power connector--but much slower than the above choices)

For an article to buy ATI cards in perspective browse Tom's best graphics cards for the money article of last week:
http://www.tomshardware.com/reviews/geforce-310-5970,24...

The last page has a graphics card hierarchy chard that will help you put everything in perspective.
http://www.tomshardware.com/reviews/geforce-310-5970,24...

The new 5670 review compares these 4 models
http://www.tomshardware.com/reviews/radeon-hd-5670,2533...

If u on a plan to buy, then tell us the rest of your system and how much do u want to spend...  
I would prefer 5750 from options above.
But we need more info here, just like dragon said...