G620+HD 4850 or A8 3850 with integrated GPU?

The HD4850 is better than the IGP inside the A8 3850, but on the other hand once you crossfire the apu with an hd6570 it should give you about the same performance in games optimised for Crossfire.AMD recently dropped support for all graphics card older than 5*** so the 4850 might run into problems with newer games.The same can be said for the Crossfire solution as it might give you micro-stuttering.
Gpu's aside the CPU inside the A8 3850 will,at times limit your FPS more than the G620 but its faster overall and can be overclocked(Keep in mind the CPU inside the A8 3850 is a Quad) .
Its a pretty tough decision.

What is micro-sttutering and how does it affect gaming performance?
if AMD dropped the support for older than 5xxx series then it may be better to go with
A8 3850. I heard that the latest drivers improved dual graphics crossfire performance is that true?
I also saw some benchmarks that show that battlefield 3 is playable on high settings @ 1440x900 with around 33 frames which is pretty good for IGP (i think).
Performance boost gained from dual graphics in most benches is usualy around 25-35% whish is good or bad?

This is a good explanation of microsuttering http://www.tomshardware.com/reviews/radeon-geforce-stut...




Hybrid crossfire offers a pretty nice performance increase. However, it is buggy and some games just don't work with its (This may have been corrected with recent driver updates.)

Thanks for the explanation.
Also does does skyrim work with Hybrid crossfire?
I m building a pc just to play that game at decent settings (and Witcher 2).Im not after ultra settings, just some good eyecandy at 1440x900 res.
I also heard that hybrid crossfire functions better with DX11 than dx9, is that true?

Yes, newer games have better support. If you keep your drivers up to date, you should be fine. You should be able to run skyrim on high at 1440x900

its pretty much a no brainer comparing a G620 to a A8 3850 with a HD 6570 for a low budget gaming solution. the AMD wins out.

and this is coming from an alleged intel fanboy  

you should look at this link

http://www.tomshardware.com/reviews/pentium-g620-amd-a8...

performance of hd6670 and 4850 are about same.