Please someone correct me if I'm wrong, but AFAICS the core voltage of the i9 1,52V. So with 254W, that thing really draws 167 amps? I guess every μΩ of resistance counts here or the board just explodes?
More importantly, every μH of inductance counts. Running 200 A into the chip is not that difficult, the real difficulty is the high di/dt - how to maintain a nice regulated voltage when the current consumption suddenly raises from 10 A to 200 A within a few microseconds.
It's a typo, should be nH. 1 μH is a huge value.
In AMDs case the CPU is supplied with a common core voltage that's regulated by a per-core ultra-fast LDO. There is also a power capacitor (mimcap) on the core die.
Eyeballing the chip, it looks like ~5cm^2? This would mean it puts out 500,000watt-meter^2 or about 50 times the heat of the surface of the sun. Do we have cameras fast enough to see this explode if the heatsink falls off?
Where are you getting this figure? A random website[1] says the heat on the surface of the sun is 62,499,432 W/m^2.
Also the die sizes are on page 2: 198.4 mm^2 for the 10 core part. Divide the total power (254W) by that and you get 1,280,236 W/m^2.
[1] https://www.pveducation.org/pvcdrom/properties-of-sunlight/t...