Although, browser may optimise both the loops, I think the good old for loop is better in terms of performance. Check this article where you can see that the normal for loop was about 40 times faster than the forEach loop for a simple test.

When it comes to performance considerations i check jsperf.com. In case of for ... vs. forEach there are a lot of comparisons avaliable, like this one.

I always use for loop unless there is any special requirement.