Hi! I currently have 2 Sapphire r9 270x Dual-X's in Crossfire mode in my PC. I am looking to sell them, as they have disappointed me greatly. My FPS in SMITE is usually at around 60, with max settings, but too frequently my FPS drops to around 20 FPS. I cannot stand it anymore, as it happens too often during big teamfights. What would be the best card (or cards) to replace them for the same value of both the current cards combined (Im thinking around $350-$375 ish)? Thanks! Let me know if you have any questions!