GameboyRMH wrote: That's the difference between single-thread performance and multi-thread performance. Single-threaded performance is basically all about the clock speed. Multi-threaded performance is basically your combined processing power. Most apps are not multi-threaded so they'll be pegging one of your cores (or half of the HT capability on one of your cores) while everything else sits idle or doing little running background apps. That's where higher clock speed is better.
If he's using a professional rendering product, I'd be highly surprised if it was single-threaded. Rendering is very multi-threading friendly.