Bungie has announced that they will let Halo 3 players download the Heroic Map Pack for free, starting next Tuesday. Bungie.net has all the information, and you can find their video showing the content here.
670 to 980 is like 3 gen jump since it's 2 gens later and 1 class up (1 minute ago)
@Melmoth: I had two 760's and replaced them with a 980. In terms of raw horsepower it wasn't a huge upgrade but I don't regret it. (3 minutes ago)
now i've had the 980 for almost 4 years, and it's doing much better than the 670 after 2. I think it's partly due to the transitioning to new consoles in 2013. (4 minutes ago)
@docLEXfisti: i bought a GTX670 summer 2012, by autumn 2014 (just over 2 years) it was struggling bad with most games (and i don't mean on ultra settings) so i replaced it with a 980 (5 minutes ago)
GTX 670 to 1080 is a gigantic upgrade. Don't get too bogged down in synthetic benchmarks. Just play some games and crank those settings up. (37 minutes ago)
thanks for the info, will download a few ;) (2 Hours ago)
@docLEXfisti: A very good GPU, should last you a while. Hmmm in terms of benchmarks, try 3dmark, Catzilla, unigine Superposition, unigine heaven, unigine valley, FurMark and Star swarm stress test. (2 Hours ago)