So my pc is currently running on an AMD A8-7650k alongside a 1050ti. Of course the CPU has been bottlenecking the 1050ti in quite a few games and i want to upgrade and have mainly been looking at Ryzen. My main three options would be the 1200, 1400, or 1600 and i was wondering if it would be at all worth it going all the way up to a 1600. From what I've seen at that point the GPU becomes the bottleneck but since I'm planning on keeping the CPU for a good while and will the upgrading GPU at some point (though not too soon), should i go 1600 or would the 1200 do me (or even the 1400). I'm also aware that I'd need to get a new motherboard and ram which adds to me not being sure as to whether it would even be worth it or not. My wording is probably all over the place but hope ye can help! 
tl;dr:
which ryzen would be best for 1050ti and would it be worth upgrading in the first place?

tl;dr:
which ryzen would be best for 1050ti and would it be worth upgrading in the first place?