I recently put together a new PC.
Processor: Ryzen 1600 6 Core
Board: Asus B350M Gaming-Plus
16GB Gskill ram (no RGB, but it's running at 3200)
NVIDIA GeForce GTX 1070
Stock cooling
Same M.2 style SSD (Evo Pro 960 250gb)
Misc old drives from my old laptops (1tb and 650gb, 650 GB is in poor health with plenty of bad sectors)
And an Acer Predator 1440p Gsync 144hz (OC'd to 165hz) monitor.
I paid significantly more than that price. Good find there.
The processor you have is a pretty big step up from what I have, while the GPU is a pretty big step down from what I have.
I can push games like Borderlands 2 at 1440p to 165hz on... high settings, I think (I don't know how high I can actually push it, since it was limited by vsync). I can run Far Cry 5 on High at 55-65 fps roughly. A 1050 Ti would definitely need lower settings to reach playable framerates on most games. The rig you listed is not particularly powerful when it comes to gaming thanks to the overpowered CPU and underpowered GPU. But for anything that requires some good processing power, you have a pretty beefy CPU. I'd say dropping the CPU down a bit and using that money towards a better GPU would have gotten you some performance in games, but if you're not planning on gaming too hard, and you want the beefier CPU for other workloads then this is good.
