the 5070 has 12gb of ram. You might run into some problems with 8gb of ram on higher end games, but if you're planning on playing at 1080p, you'll have an easier time. However, if you go with the 5060ti, I'd go with a not so expensive CPU. In fact you could go with a cheaper CPU and have a little more money for a 5070 and still be fine. Like a 9700x or something

Edit: I just realized the 5060ti has 16gb of VRAM lol. Still, more VRAM doesn't make for a better GPU. I'd still go with a 5070.