My old graphics card got screwed. So I was thinking of getting a new one. I am on a low budget so I was thinking if the 8gb version is worth the extra 50$... I have seen fps tests and both cards provide pretty similar performance. Its just about future proofing now... I will be using this card for the next 2-3 years... Will I be able to play the upcoming games during this period in ultra @ 40+ fps in 1080p in the 4gb version ? Or should I somehow increase my budget and get the 8gb version ?