I have an ASICMINER blade behind me. I just recently shut it off because it costs more to power it than it makes in mining. It has 32 honest-to-goodness ASICs, fully optimized for Bitcoin mining. They're just not the very latest technology, and so even though I've already paid for them and already have them, I can't make money on them. If you're right, put your money where your mouth is. Offer me $400 for my 32-ASIC blade -- it hashes at 13GH/s on a paltry 135W. You can't get anywhere near that with any general purpose hardware.
135W? That doesn't even make for a good space heater! At least my 200W of GPU keeps my feet warm...
Sound Blaster Live! (August 1998) saw the introduction of the EMU10K1 processor, a 2.44 million transistor audio DSP, rated at 1000 MIPS.
A 10 year old Pentium 4 2.4GHz makes 5000 MIPS and about 1 MHash/s. /thread.