I run the same CPU at 4.6ghz with the Akasa, so yes. (See my steam profile for rig info)
Im running on a akasa Nero s and have kept my x3 720 @3.5ghz under 50oc on prime, im not sure weather the venom is better than the nero, but thats in the same price range, to be safe on air id get something like the thermaltake frio or the titan fenrir
Edit i lied i have the akasa nero s Premier, the best version
All I will say of the H80 is you may want to change out the stock fans if noise is a concern. Other than that its an excellent cooler.
If not longer, the H80 comes with a 5 year warranty. I know Noctua usually have a 72 month (6 year) warranty, but I think Akasa is only a 1 year while thermalright is 3 years.
With a large warranty your set for a good few builds.
As for the noise, try it your self at first, see what you think, they are only at their loudest under 'performance' mode. Balanced mode should yeild lower noise but at higher temps.