Negative carbon footprint for Broadwell CPU cores

[masterbuck]

When trying to simulate the impact of Broadwell CPU architecture using the GUI (https://datavizta.boavizta.org/serversimpact), the more cores are added, the lower the manufacturing carbon footprint of the CPU goes.

E.g. for 1 CPU with 0 core, the result is 24.3 kgCO2e, with 1 CPU with 1 core, it is 23.8, for 1 CPU with 10 cores, it is 19.9, etc.

The carbon footprint of 1 core seems to be -0.4393 kgCO2e, probably instead of 0.4393, when comparing to Skylake or Cascade Lake carbon footprint (respectively 0.4689 and 0.4356)

Not tested with the API

[masterbuck]

I can't confirm where (didn't note it), but I found a similar error on another Intel architecture