75ºC is actually smack in the middle, not the best and not the worst.
You can do a Cinebench run to see how far it really goes.
In HWiNFO:
These are reported by CPU, the most often used would be the first one
These are reported by the motherboard, CPU package would be the most accurate.
You can get CoreTemp, its very lightweight, but for some reason cannot read vCore well.
When minimized you get this readings.
The Englishman