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> That chip needed some 20,000 amps of current fed to it from one million copper connections to a fiberglass circuit board atop the wafer. Is the 20,000 amp nu
by lxe 6y ago
> That chip needed some 20,000 amps of current fed to it from one million copper connections to a fiberglass circuit board atop the wafer.
Is the 20,000 amp number not an error?
- Karliss 6y ago20000 amps seems plausible. A regular desktop CPU operates at 1-2 Volts and power consumption of 100-200 watts which means 50-200 Amps. Comparison table shows nvidia A100 which has max power consumption of 400W. This has roughly 50 times the transistors and 50 surface area so having 50 times the power consumption 50*400=20000W and same order of magnitude of current seems possible.
- magicalhippo 6y agoThey also say the peak power draw is 23kW. Now 23kW/20kA = 1.1V which is about what my NVIDIA 2080 GPU uses at load. So that does indeed seem to work out. Of course 20kA is pretty insane, would be interesting to see just how they feed the power to this thing. Bond wires going to the middle of the chip? And the local regulator must be a beast, or rather lots of beasts.