Installed a new MSI RTX 4070 Super yesterday and it runs MSFS 2024 like a dream - almost all settings at Ultra with OLOD and TLOD > 200.  DLSS NO Frame Gen, Quality and still get about 50 FPS at KSAN with the ORBX KSAN add on.

But... the GPU runs so HOT - in MSFS 2024! 

Flying over KSAN and around San Diego the GPU is always > 82°C but never exceeds 88° C.   PASSMARK, TimeSpy, SuperPosition GPU benchmarks only get the GPU to the mid or upper 70° C range.  When the sim is loading or moving from Free Flight to Ready the GPU is at 81°C. 

I installed the GPU in a new Thermaltake CTE1500 Air case with four 120mm fans with one each on either side of the GPU.  All three GPU fans are at 100% once the GPU exceeds 75° C.   The GPU is at 43°C at idle with no app running. 

Tried TAA and lowering DLSS to Performance but no change in the GPU temp.  Same result lowering LODs.

I have read other forums describing the RTX 4070 Super as "running cool", seldom above 65° C.

Is this is known MSFS 2024 issue and is there anything I can do about it?

Edited February 18, 20251 yr by TacomaSailor

I'm off to test my 4070  temps at KSAN (default). BTW, folks, Task Manager / Performance displays gpu temperature.

You should try undervolting your GPU, with MSI Afterburner. I run the same GPU (Gainward Phantom 4070 Super).

By default, the GPU runs @ 2900 MhZ & 1200 mV. At this frequency and voltage it reaches 85-90° and the fans are loud as an A380 at TOGA

With MSI Afterburner I limited the frequency @ 2500 MhZ & 900 mV. This may seem quite an extreme lower frequency but in MSFS I lose only 2-3 FPS but the temperature never exceeds 65°, and the fans are close to being inaudible.

You may find an intermediate frequency and undervolt balance, to suit your needs.

Nothing to worry about as long as you don't go over 90 or so. The GPUs are designed to throttle down once they reach too-high temps. 
My 4070 Super regularly idles in the mid to high-40s and I have 7 total fans + a 360 radiator exhausting air 🙂

KSAN Cessna 172, DLSS Quality, Global Rendering Ultra. FG off. fps in the 40's. 

gpu is 4070 (not super not ti). Was tuned with nvidia app's gpu tuner (Performance tab). This increased the clock frequencies up above normal for greater performance and more heat.

temps for 10 minute flight 62 to 72. Average 66.

The Australian guy on Youtube measured all the 4070s for temperature. I bought mine after watching this, one of the lowest temp models.

 

1 hour ago, TacomaSailor said:

I have read other forums describing the RTX 4070 Super as "running cool", seldom above 65° C.

That's exactly it (<66°) with these graphic settings:

https://i.goopics.net/fji7wg.png
https://i.goopics.net/vwqptf.png

Edited February 18, 20251 yr by doudou

Can I ask why no Frame generation on you 4070 card

That 9800 is probably pushing the card really well but beyond that, something seems off if you're idling at 43C with nothing running.  Either you have a case airflow issue or are in a really warm environment or both.  Or your card's cooler is not mounted right or has faulty thermal paste application.  Another thing to try is if you have Raytraced Shadows checked, uncheck it and see if that helps.  

No Frame Gen - just experimenting with GPU load/temp to see if NO FG made a difference

Ambient temp is 81° F  

Airflow is what  Thermaltake installed at factory plus one 120mm fan to blow over the radiator on my CoolerMaster VL120 AIO CPU cooler

Walking around Ramona airport (KRNM) with the VBCorp addon in the area where the S2 fire fighting planes reload and with FSLTL traffic injected  - I see

55 FPS 78° C with GPU Fans (3) at 100% - Power Limit set to 100 and Temp Limit set to 85 in MSI Afterburner

55 FPS 79° with fan reduced to 80%

52 FPS 77° when reducing power limit to 80% and fan at 100%

52 FPS 78° when reducing Fan to 80% (with power reduction at 80%)

49 FPS 74° when reducing power to 70% and fan at 70%

It seems that changing the fan speed has little impact on temperature

I guess I need to look at airflow more closely

Thanks for the ideas!

 

 

testing my  4070ti Asus .

In the air at this moment, but nothing over 45c

Never went over 60.

 

Edited February 19, 20251 yr by Ron Lefebvre

I just looked that case up.  Well, guess I don't have to worry that you vertical mounted the GPU against a glass side panel, but only 3 preinstalled fans yeah probably not enough and probably not pre-installed in the best orientation.  Also wow I'm surprised you're not having temp issues with a 9800 on a 120mm AIO.

Edited February 19, 20251 yr by flyinion

I have opened my case and just cpu and gpu fans, very good temps and a very silent pc.

13 hours ago, TacomaSailor said:

I installed the GPU in a new Thermaltake CTE1500 Air case with four 120mm fans with one each on either side of the GPU.

How are the fans setup? There's a bit of an art in air flow through a PC system to maximise cooling, one simple mistake is putting a fan in the wrong way round so you the hot air doesn't actually escape. If the system came from the shop check the fans are both drawing in air and extracting, just incase they're the wrong way.

I bought a dedicated case but straight away set up my own fan system to keep things as cool as possible, worth the effort on those hot summer days.

 

I bought the upside down Seasonic Syncro Q704 case.

Three top-mounted 140 mm fans blow outside air straight into the GPU, and six 120 mm fans on the front mounted CPU radiator forces the warm air straight out the back. It works really well, cool and quiet.

 

If I am following the narrative correctly, the OP did not complain about cpu temps. Therefore I doubt fans or case or airflow is the problem. The only thing hot is his gpu but apparently his cpu is nice and normal.