Originally Posted by vampirr
It all depends on your needs...
Intel currently has better single threaded and multi threaded when we look at the whole picture, but when we look at price and performance the story changes. AMD historically was a better company overall, they always had a competitive products and couple of times they smacked Intel. AMD couple of times shot them self in the foot to say at least, previous CEO was a douche and upper management was chaotic and AMD stop being the king of hill when Intel released Core 2 Duo that has roots from Pentium 3/Pentium M that from then Intel just shrinks it down with some minor tweaks and improvements and sell it for absurdly high price.
AMD would right now smacking Intel if they din't had a CEO Dirk Mayer, chaotic upper management, unreliable fabs from TSMC and Global Foundries they previously owned and then we have the Intel that started doing illegal things against AMD since 1999 to 2007 when they finally get fined. Intel offered illegal rebates to OEM's and shops to delay, cancel or stop using AMD's products and that hurt AMD alot and Intel bought Dell's loyalty so that is the reason why Dell does not have any product with AMD's component. Illegal rebates still continue in my country Croatia, its not a lie...
Anyway here is a guideline for "bang for a buck":
AMD "Trinity" A10 5800k 130$ > Intel Ivy Bridge i3 3225 145$ (using IGP only)
AMD Piledriver - Vishera FX 4300 120$ > Intel Ivy Bridge i3 3225 145$
AMD Piledriver - Vishera FX 6300 140$ > Intel Ivy Bridge i5 3470 200$
AMD Piledriver - Vishera FX 8320 175$ > Intel Ivy Bridge i5 3470 200$
AMD Piledriver - Vishera FX 8350 190$ > Intel Ivy Bridge i5 3570k 220$
Since you have an AM3+ motherboard, by the end of this year Steamroller should be available and there is speculation that there will be 20-30% of improvements over Bulldozer/Piledriver and be in on par Ivy Bridge in single threaded performance and crush Intel in the multi threaded performance. AMD CPU's are great for multitasking, FX 8350 beats i5 3570k in the multitasking and great for all sorts of things. So its a nice you are going AMD since you won't need to buy a new motherboard each year or two for a newer generation of processor.
Good luck and happy gaming!