These days it seems like phones and other mobile devices based on the ARM architecture are getting dangerously close to the performance of desktop machines. There's still a lot of difference in absolute raw performance, but the point is these devices are getting so fast, that most users won't even notice any perceptible difference in performance when using the two types of devices.
This is helped by the fact that mobile apps are a lot leaner than their PC counterparts, so they load and work a lot faster (which, for example, is also why Windows 8 tablets based on Atom will still feel very slow with non-Metro apps). This is also assisted by increased clock speeds of ARM chips and the continuous improvement of the ARM chips' architecture.
Thanks to some developers that love to hack Android phones, if you own a HTC One X variant from either AT&T, Rogers or Sprint (Evo 4G LTE), you can be on the cutting edge of ARM chip performance and get both of these improvements right now: clock speed increase to 1.8 Ghz for the S4 chip inside them, which is already on a next-gen and more advanced architecture than previous Cortex A9 chips, for which we were getting this kind of overclocking before.
The custom kernel module works only for this MSM8960 Qualcomm Krait S4 processor, and it can overclock it to 1.8 Ghz or beyond, but it might be unstable after that threshold. Plus, with such overclocking, you should be expecting lower battery life, because unless the chips themselves are optimized for lower power consumption by the chip maker themselves, before they increase the clock speed, they will draw significantly more power.
However, if you like speed, this hack makes an already very fast chip, even faster, and it works even with a locked bootloader (AT&T users). If you want to try it out, at your own risk, follow the source links below the video.