A PC being old is irrelevant, mine is 4 years old and a Sony Vaio Laptop - Not exactly the most gaming intended line of laptops - My GPU is an intel HD 2000, which runs Oblivion fine but starts struggling a lot with older 7th gen games. Perhaps on low settings only
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you