After getting my Steamdeck OLED, I'll never game on a PC again. I have a backlog that goes back a decade and this thing plays everything maxed out that's more than a few years old.
If you’re not doing huge models a used 2080ti can be picked up on eBay for 300 ish bucks which is pretty capable (best price to performance cuda core count I think)— just a little lacking in ram for huge stuff.
1080 ti is still a beefy card, about the same performance as a 3060 ti / 4060, just without the AI core shenanigans and more VRAM - not bad for a 6 year old card. I recently updated from a 1060 to a 3060 ti, which gave me roughly 50% extra performance, you'd have to grab a 4080/4090 to do the same. But yeah, not fast enough anymore if you do 4k or high hz stuff.