Is RoTMG CPU or GPU Based?

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Is RoTMG CPU or GPU Based?

Realm relies on CPU power unless you enable Hardware Acceleration in options.

So if i have Intel Core i5-4590 and GTX 970, then i should go for the Hardware Acceleration? Ty for answer.
I just want the best perfomance + Multiboxing sometimes.

if you have any dedicated gpu you should always have HA on. It doesn't take much graphics power but it helps a bit. So even if you had tri sli titan x the game still very much relies on your CPU. Keep that in mind.