The 3060ti is good. If it’s a ti that’s better as the base 3060 is quite a bit slower. It’s a newer card being a 30-series and the 30 series had a big jump in performance over older generations - which is why the 3060 is performing as well as the 1080ti, which was the 10-series’ highest performance card.
But as far as the 30 series goes, it’s definitely nVidia’s mid-tier card and not the high-end one. It still comes in as the 3rd lowest card among the 30series, only beating out the 3060 and 3050. Above it are the 3070, 3070ti, 3080, 3080ti, 3090, 3090ti, and 3080 12GB.
That’s not to say it’s a bad card, the 3060ti is very good and that’s why it’s performing as well as older generations’ highest tiered cards despite being mid-tiered in the 30 series lineup. It’s good because the 30 series had a huge leap in performance over past gen series-to-series changes in performance. However it definitely isn’t one of nVidia’s high-end series cards for the 30 series, it’s pretty squarely seated as the mid-tiered card for this lineup…so whoever told you otherwise was misinformed.
As for UE5 performance…if UE4 is running well for you then you should use that. UE5 is very demanding and is in its first release after early access. If you’re getting 70fps on blank scenes and 20fps on full scenes, then your scene’s optimization (foliage, overdraw, shader instruction count, etc.) is almost certainly the problem. 70FPS is perfectly playable.
Another thing you might want to give a go at is reducing the scalability setting. In the console, type ‘scalability 2.’ It doesn’t affect visual quality much at all but will improve your FPS. That being said don’t expect 120fps in UE5 on any current gen hardware unless your rig is absolutely pimped.
Lastly, I’ll mention that UE5 is demanding and, frankly, poorly optimized. The steam hardware survey showed the 1060 was the leading card for a very long time. Eventually, the 3060 or 3060ti will become the new defacto standard because of it’s price point and performance…so if UE5 can’t run on that, then this will be a major failure in the making for Epic/UE.