GetOwnedGaming :
terry4536 :
No, a processor like an I5-4670 should be fine without overclocking.
Okay, would OC'ing help video render times and/or streaming?
Perhaps by a little bit. Render times are mostly going to be aided by how much RAM your have and what its frequency is more than anything else.
In theory overclocking will also help streaming, since the faster it can complete a certain task, the faster it can get on with sending over data for the stream. The i5 is such a strong single-thread chip though that it's unlikely to change that by much at all.
Do you have an aftermarket cooler? Is your processor the k version?
(Non-k versions are locked and cannot be overclocked).
Without an aftermarket cooler it's strongly advised that you
don't overclock on the stock one. How high of an overclock you can achieve depends entirely on the quality of your board and the size/heat dispelling capabilities of your cooler.
It also depends on how lucky you get with your chip. Not all CPUs are created equal.
For those tasks, pretty much every modern CPU will be able to do what you need without an OC.
With that said, if the conditions are met, overclocking
rarely doesn't help.
Edit: Oh and about your post above, most boards will have 7 or 8 channel audio built in. It's usually adequate but you can always buy a soundcard for better audio quality if needed.