Hi guys, so back in 2013 I bought this cardVTX3D AMD Radeon HD 7970 X-Edition Graphics Card (3GB, GDDR5, PCI Express 3.0, HDMI, DVI-I, 2x Mini Display Port, AMD CrossFireX Technology) for about £400 at the time, it's coming up to upgrade time, do I grab a 2nd for £200 or is there a card for THE SAME £200, that will BEAT TWO of these cards in crossfire?