Try a Precision, Graphix options on these ones are good for rendering (including what you aim to do).
I'd go with an i7, remember it's got 4/8 threads.
BTW, go with a 2 memory sticks config, in case it crashes, & RAM is the faulty component, it'll be easier to find out. Having only one will make you scratch your head & hesitate between Motherboard or RAM.
& have a nice build!