[Rezo]

I recently went from a i5-2500K at 4.4Ghz to a i7-6700K at 4.4GHz for my desktop, and my Webpack w/ Babel compile step (entirely single-threaded) for a larger project dropped from 24 -> 12 seconds changing just the CPU (same SSD).

For comparison, my 2015 Macbook Pro i5 runs the same compile task in around 50 seconds. So there is definitely still benefits to having a powerful desktop around, and in my experience developing is more pleasant with quick turnaround times. The incremental compile times dropped accordingly, and having a sub-second vs 4 second delay between a change and seeing the result does impact your workflow.

For gaming, the new CPU did absolutely nothing, except smoothing out the minimum FPS a bit. Pour all your money into the GPU if that's your interest.