Soldato
- Joined
- 27 Dec 2009
- Posts
- 2,727
- Location
- Gillingham, Kent
This is one of those "I've always wondered but never got round to asking" questions. Temperature changes recorded on CPUs are very rapid - start Prime95 and your CPU goes from 20C to 90C in a second and stay there, and dropping temperatures are just as quick. Temperature changes recorded on GPUs are a lot slower, so start up a game and your GPU will slowly climb until it plateaus on its maximum temperature after a few minutes, then takes best part of a minute to cool back down.
Is this because the temperature sensors are in different positions - with the CPU sensor being close to the action and the GPU sensor being more in a heatsink rather than the core? This doesn't seem likely as removing the cooler on most GPUs reveals the bare core rather than an integrated heatsink like a CPU comes with. Is it due to the different construction of the chips, with the CPU being an individual made up of 2/4/6 or 8 "bits" where the GPU is made of thousands?
Or is it something completely different that I've been a spoon for never realising?
Is this because the temperature sensors are in different positions - with the CPU sensor being close to the action and the GPU sensor being more in a heatsink rather than the core? This doesn't seem likely as removing the cooler on most GPUs reveals the bare core rather than an integrated heatsink like a CPU comes with. Is it due to the different construction of the chips, with the CPU being an individual made up of 2/4/6 or 8 "bits" where the GPU is made of thousands?
Or is it something completely different that I've been a spoon for never realising?