AMD Phenom II X6 1055 T or AMD Phenom II X4 965

Hello. Tell me which processor is better. AMD Phenom II X4 965 or AMD Phenom II X6 1055 T? The fact that I have a M4N78 SE motherboard and the CPU AMD Phenom X3 720, to change motherboard and the CPU is currently not possible. So I had to watch proteci fit mother. Well, actually dug them, but I can not understand. So I would like to know from the pros:) which of these processors better for gaming and will it make a difference compared to my current one? And, well, if there are options for better than these, I'll only be happy)) (Only in the price range not higher than 5K) thanks in Advance for your response.