In my opinion, I think a 6 core CPU is a waste for gamers. There are currently no games that uses 4 cores. Yeah there are crap games out there that recommends a quad core like GTA IV, but that's a very poor game port.
Games using 5 or 6 cores maybe be coming out, but I think that wouldn't happen for at least another 3+ years.
How come the i 7 860 performed so well? from my understanding was the 1090t was suppose to be right even or better then the 860? I am not much of a intel lover forgive me for that but after having a bad experience with a dual core some years ago I have been a amd user for quite some time.
I own 1050 T and am quite happy with it. However it is at 2.8 GHZ and as somebody pointed out there are no games for next 3-4 years for a hexacore.
so. I would say,,if you want to choose between 1050 t and 1090t, go for 1050 unless you are great overclocker though 1050 can also be overclocked but not like 1090 (but do u really need to overclock a hexacore?).
However, my personal suggestion is look for a quad at a greater speed than 2.8 at lower or same prize as 1050 t, if you can find it go for it.