Whats the purpose of this build just gaming or you gone do editing and streaming ?
If you have a 1440p monitor go for sli else there is no point in going that way
because if you monitor is full hd and stuck at 60hz go for 1050ti 4gb will play all games at ultra
If you monitor supports 100hz at 1080p
Go for gtx 1060 6 gb
If you have 1440p go for rx sli
Or 1070 and 1080
Because ram and cpu you wont use that for normal task
6400 is a really good processor check the price different and if you get bargin on 6500 go for it.
Heres my setup
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