Need real techs, gpu different temps

[K1K4H4]

Howdy.

I'd like any specialist and not just wild guesser to tell me what is the reason for same gpu (in my case 1080ti) while consuming same ammount of energy ~295W, to run at very different temperatures at different games.

So:

Games run at max frames gpu can give since its less than max panel frequency.

- Rise/Shadow of tomb raider and ACOdyssey get gpu up to ~75°C +/-2°C

- WoW and WoW classic and jedi order get gpu up to 85°C +/-3°C

 

I am not looking for excuses of difference in temps, I want to understand how same wattage gerenrates more heat and what is it related to and what do those games have that does that.

[Radium_Angel]

4 minutes ago, K1K4H4 said:

Howdy.

I'd like any specialist and not just wild guesser to tell me what is the reason for same gpu (in my case 1080ti) while consuming same ammount of energy ~295W, to run at very different temperatures at different games.

So:

Games run at max frames gpu can give since its less than max panel frequency.

- Rise/Shadow of tomb raider and ACOdyssey get gpu up to ~75°C +/-2°C

- WoW and WoW classic and jedi order get gpu up to 85°C +/-3°C

 

I am not looking for excuses of difference in temps, I want to understand how same wattage gerenrates more heat and what is it related to and what do those games have that does that.

You are looking in the wrong place. It's not the power draw, it's how hard the GPU is pushed, which is in part due to programming and how efficient the game coding is, to use the GPU.

So poor code requires more processing grunt, which drives up the temp.

I've seen a number of games do this.

[Kyatto]

It is the Quantum state of the air inside your case which changes periodically, modifying the amount of energy it can carry and how the atoms in the temperature sensors perceive and report temperature.

[Kc7vwc]

What's the frame rate during those temp checks? 

I used to get a 'glitch' in the main menu of Overwatch, where it would try pushing 300+ Fps & my GPU would hit thermal Max. Because the scene was so easy to render, the card would go into overdrive - like a vehicle that has too much power & the tires are constantly losing traction. 

Enable vsync & see what happens. 

 

Also, not every game will run the GPU at the same amount & power draw. Especially Nvidia cards - they're fairly good at Dynamically shifting their parameters for the workload at hand. 

[NineEyeRon]

I’m going to take a wild guess and say the work the GPU is doing and the time it is doing it for relates to the heat produced and the rise and sustaining of that temperature.

 

So hard work over long (relative) period of time means accumulation of heat that can’t be dissipated. 
 

Intervals of hard work or less work would relate to heat that can be dissipated by the cooling system and system of a whole.

 

You also need to consider the temperature of the air going in to the cooler as warmer air has less capacity to cool. 
 

just a wild guess tho so maybe others know more