Yeah, I've seen benchmarks with a Phenom II 980 and a 680, and there wasn't a bottleneck. The 760 isn't quite as fast as a 680, but neither is a 970. You'll be fine. The suggestion for a Cpu cooler is solid though, and will help you extend the life of that processor a bit. When you finally upgrade the whole motherboard/cpu, you can reuse the same cooler, so it's something you'll want to buy anyways. And holy cow, a 950w PSU for that system? I'd expect to see a 950w in a system running dual Titans and a 3930k Cpu, wow. Nice Psu though, will last you a long, long time.