By older Arc, I presume you're referring to Alchemist and not Battlemage in this case.
One of my brothers has a PC I built for him, specced out with an Intel Core i5 13400f CPU and an Intel Arc A770 GPU, and it still works great for his needs in 2025.
Surely, Battlemage is more efficient and more compatible in some ways over Alchemist. But if you keep your expectations in check, it will do just fine in many scenarios. Just avoid any games using Unreal Engine 5.
yeah i had an A770; it should be ~$200-$250 now on ebay, lightly used. It's, in my opinion, worth about $200, if it's relatively unused. As i mentioned, it's ~= RTX 3060 at least for compute loads, and the 16GB is nice to have for that. But for a computer from the 4th gen i'd probably only get a A380 or A580; the A380 is $60-$120 on ebay.
One of my brothers has a PC I built for him, specced out with an Intel Core i5 13400f CPU and an Intel Arc A770 GPU, and it still works great for his needs in 2025.
Surely, Battlemage is more efficient and more compatible in some ways over Alchemist. But if you keep your expectations in check, it will do just fine in many scenarios. Just avoid any games using Unreal Engine 5.