With all the GHz CPUs filling the market, I think a note of caution is due. Does anybody really need such a CPU?? Check your CPU load meter and you will likely find a large excess capacity. These frequencies are impossible to keep durable in the electromagnetic spectrum. When I was active in the field, research was directed at optical coupling for transistor switching. Capacitance, inductance, and signal reflection do not impair optical switching at such frequencies. Perhaps this is employed in these new CPUs, I don't know. The onboard power supply challenges for fast, power hungry CPUs are enormous. DC current switching amplifiers must go from inactive to tens of amps in nanoseconds. The switching voltage regulator and tank amplifier is very vulnerable to failure. A far more stable approach to increasing computing power is using the motherboard as simply a backplane bus, with a slow stable CPU simply managing the bus. Most new add-on cards are ready for this re-invented s ystem design (a throwback to the mainframe). Video cards, sound cards, controller cards, etc. all have their own Bios and CPU and command interface and system memory access. Since Unix was based on such a parallel tasking environment and Windows was not, perhaps the Linux community has an even larger hardware advantage than is often discussed.