Hi, yesterday I bought an INTEL I5 3570 (3.4GHZ ivy bridge). with an azrock B75M-DGS R2.0

PROCESSOR:
http://www.yoytec.com/product_info.p...oducts_id/8278

MOTHERBOARD: Asrock B75M-DGS R2.0
http://www.asrock.com/mb/Intel/B75M-DGS%20R2.0/

MEMORY: 8GB 1600mhz
http://www.yoytec.com/product_info.p...oducts_id/8852

My questions are, will it be very fast? (first time Intel, previous cpu was AMD phenom 920 2.8ghz 4 cores).

Also, it says, that since that cpu has an integrated graphic card on it, should I throw my NVIDIA GTX 460 for that?

And last but not least, are those integrated audio card "5.1 CH HD Audio (Realtek ALC662 Audio Codec)" better than my sound blaster audigy 2?

thanks in advance