Currently Online 
JEMC on 10 October 2012
The only difference that I found between them is the SLI/Xfire support.
970- no.
990X- SLI and XFire x8/x8
990FX - SLI and XFire x16/x16
The rest seems to be the same for all of them (nº of USB ports, nº of SATA 6Gbps, etc).
The choice should be easy, if you plan to go with only 1 gfx card, the 970 chipset should be enough, and if you plan to go with 2 cards in SLI/XFire then the 990X is the chosen one.
Please excuse my bad English.
Former gaming PC: i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Current gaming PC: R5-7600, 32GB RAM 6000MT/s (CL30) and a RX 9060XT 16GB
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.
