The FX-8350 outperforms both the Core i5-3470 and the 3570K on multithreading. As a result, the FX-8350 will give you more performance for your dollar than the Core i5-3570K, and it at least rivals the value favorite from Intel, the Core i5-3470.
Pop over to the gaming scatter, though, and the picture changes dramatically. There, the FX-8350 is the highest-performance AMD desktop processor to date for gaming, finally toppling the venerable Phenom II X4 980. Yet the FX-8350's gaming performance almost exactly matches that of the Core i3-3225, a $134 Ivy Bridge-based processor. Meanwhile, the Core i5-3470 delivers markedly superior gaming performance for less money than the FX-8350. The FX-8350 isn't exactly bad for video games—its performance is generally acceptable. But it is relatively weak compared to the competition.
This strange divergence between the two performance pictures isn't just confined to gaming, of course. The FX-8350 is also relatively pokey in image processing applications, in SunSpider, and in the less widely multithreaded portions of video encoding. Many of these scenarios rely on one or several threads, and the FX-8350 suffers compared to recent Intel chips in such cases. Still, the contrast between the FX-8350 and the Sandy/Ivy Bridge chips isn't nearly as acute as it was with the older FX processors. Piledriver's IPC gains and that 4GHz base clock have taken the edge off of the objections.