VR Zone discusses the future of overclocking on Intel's desktop platform, you can read it over here.
Ivy Bridge CPUs decouple the main clock finally, following what the coming Sandy Bridge - E Socket 2011 is also implementing. Now, you can overclock the cores and memory without worrying about affecting the I/O and PCIe clocks. But then comes the more interesting piece news. A year later, in early 2013, the pinnacle of Intel's 22 nm process show off, the initial Haswell processor, is expected to go another step further, where CPU core, GPU, memory, PCI and DMI ratios are all set independently here, on top of fine grain BCLK base clock available within the Lynx Point chipset.