Please never consider such characteristics (number of cores or their frequencies) as an advantage when buying any mobile gadgets. Mobile technology varies highly and such characteristics are usually can't be easily compared between different hardware vendors (e.g. two 400mhz GPUs might have completely different performance profile.) I don't know what kind of hardware they have there but it might be anything — from a plenty of slower cores to having many specialized cores. Also a lot depends on software and it's integration with hardware. Do test real devices and measure real-life performance. That's the only way to tell if there is any improvement whatsoever.