The way I estimate performance is like:
Low 4gb-med 6-8gb-high 16gb+
Low 2 cores-med 4 cores-high 6 cores+
Low 253mb-512gb-med 1gb-2gb-high 4gb-6gb+.
I'd have to look up how many cores your cpu has but if you already know you can see for yourself.
I hope this was helpful.
Edit:If you don't mind quality a lot of games have ultra-low graphics mods.