All FX products (2012/2013) have two integer cores per (Bulldozer) module which is AMD's response to Hyperthreading.
The FX-8350, for example, has 8 integers cores on 4 modules. It does best in multi-threaded workloads but is still able to outpace Phenom II in single-threaded applications.
If you already have an AM3+ board and you're looking for something that will outperform your 1090T, then it is likely a fairly straight forward decision:
The FX-8350 will be your best option if you have any sort of budget. Otherwise, the FX-9590 or 9370 will both be good picks if overclocking isn't your thing.
I've recently seen the 9370 on for $240, which is decent, but keep in mind that the 8350, 9370, and 9590 are all exactly the same chip with different binning.
Desktop: AMD Phenom II X4 965 @ 3.5GHz, Sapphire Vapor-X HD5870, ASUS M4A78T-E, 8GB Kingston/Mushkin DDR3-1333, 256GB OCZ Vertex 4, 2xSeagate Momentus XT 500GB Hybrid Drive (RAID0), ASUS Xonar Xense, Corsair HX750W, Antec Nine Hundred, Windows 7 Professional x64.
HP Touchsmart TM2: Intel Core i5 430UM, Hitachi 250GB 7200RPM HDD, ATI Radeon HD5450, 8GB Samsung DDR3-1333 (CL9), Windows 7 Professional x64.