Oh good call Sam Hain. I had a latest revision 975BE, in a Sabertooth 990fx before swapping it to a 8350.
Going from the budget mobo of the original build to the Sabertooth also gave me quite a bit more OC headroom.
Which is why I always mention northbridge OC as well for this series of chips, since that, while taking a little more in depth tweaking, is very nearly "free" as far as voltage and thermals.And makes a big difference.
Getting back to the OP's question, the Ryzen 3's are releasing very soon, and extrapolating their performance from current R7/R5 results is a reasonable thing to do.
Pricing rumours put the R3's at $110-$130 USD. Personally I would not recommend anything less than 4C/8T on an upgrade for any reason. which is the lower priced R5's. But the R3's will still be a viable option and extremely competitive to similar priced Intel offerings. And of course, the fact that every single Ryzen chip will fit in the same socket.
I guess we need to hear back from the OP to see what they are thinking.
* Sam Hain as a user name.. lol.. that's funny...