question about delta temps

[bigjimmyauk]

i keep seeing this a lot but want to confirm is delta temp the overall temp minus the ambient temp?

 

[JonJ678]

Delta is a greek letter commonly used to refer to a difference between two values (and, sadly, to various other things). You'll have come across it as (average water temp - ambient air temp) in watercooling, measuring performance of the loop as a whole, where 10 is normal and 5 is quite good.

Or possibly as (cpu temp - water temp), referring to water block performance, or (cpu temp - air temp) referring to heatsink performance.

So basically yeah, you're on the money.