Hi guys so i just finished my first build with a vapor-x 280x and i heard a few weeks back about Mantle gaming for amd and my card isn't compatible with mantle and i have a few questions. Will there be a huge difference between my current card and a card with mantle? Will i be able to use this card without mantle for a year or 2? Will the performance of my card drop because I don't have mantle? Thank You!!!