Do any GPU fan setup comparisons exist?
Do any GPU fan setup comparisons exist?
I examined the details, and it was a fascinating task. There exist five configurations for long cards paired with N+1 fans. Source [1] [1]: https://www.techpowerup.com/review/nvidi...on/37.html ("NVIDIA GeForce RTX 4090 Founders Edition Review - Impressive Performance," W1zzard, 2022 @ September 21, 2025) N=0 No fans whatsoever, except in server rooms with ventilation systems, (N)+1 Every variant includes one axial fan at the end that circulates air straight from top to bottom or vice versa. (N=2) +1 variant (MSI) All axial fans rotate clockwise, drawing air from one side — characteristic of MSI designs, reaching 1400 RPM with 64ºC and 32.6 dBA. Source [1] and also take into account source [3] which features a similar layout for the RTX 4070. [3]: Watch: https://www.youtube.com/watch?v=mr3QN-vSGd0 (Fan vs 3 Fan GPU: MSI RTX 4070 SUPER VENTUS 2X vs VENTUS 3X [Performance, Noise, Cooling & More], 2024 @ September 21, 2025) (N=2) +1 variant Two axial fans act as transversal rotors in helicopters, similar to the animation shown, or the Osprey V22, see the video. Two rotations at 1400 RPM yield 64ºC and 32.6 dBA. Source [1] also references source [4] with a comparable design for the ASUS TUF GAMING RTX 5060. [4]: Watch: https://www.youtube.com/watch?v=PF3T7sRwzEw (Cheap 2-Fan vs Expensive 3-Fan RTX 5060 GPU [Performance, Noise, Cooling & More], 2025 @ September 21, 2025) (N=1) +1 variant All axial fans draw air from the bottom: one spins 90º upward, the other continues upward — typical for NVIDIA models at 1400 PRM, reaching 66ºC and 35.1 dBA. Source [1], for visuals, see source [5]. [5]: https://www.nvidia.com/content/dam/...ie...zation.png ("GeForce-Rtx-30-Series-Dual-Axial-Flow-through-Visualization.Png (3838×2028)," @ September 21, 2025) N=1 One centrifugal fan ("blower") with long fins attached to the heatsink, achieving 71.1ºC at 5200 RPM. Source [2]. [2]: https://reddit.com/r/nvidia/comments/10f..._a_couple/ ("Blower Style RTX 4090 (2-Slot) — Photos and a Couple Benchmarks (Story/Info in Comments)," "Blower Style RTX 4090 (2-Slot) — Photos and a Couple Benchmarks (Story/Info in Comments)", n.d. @ September 21, 2025) Temperatures for the RTX 5090 exceed those of the 4090. [7] [7]: ("Nvidia GeForce RTX 5090 Founders Edition Review: Blackwell Begins with a Few Challenges," Walton 2025 @ September 21, 2025)
I wouldn't have bothered searching for it if I hadn't already found it through some Google queries.
Lots of great info.
While the "blower" style seems to have the highest temps, one person made an interesting point:
"Blower" style cooling is best for people with
multiple
GPUs, since each additional card would block the fans of the card below.
So, there is one instance where fan placement/configuration needs to be taken under consideration when choosing a card.
The info you found does seem to suggest there is no
temperature
advantage to Gigabyte's counterflow fan config, but I wonder if there's a case configuration where having the exhaust out the top of the card is preferable? (A mesh side "window" vs clear plastic?
🤔
)
In the end, for casual use on a PC with a single card, a small 2-fan GPU seems to be the best choice.
So you simply overlooked everything and reached the point you were expecting.
In the end, it really comes down to the specific situation, but if you have a bigger heat sink, covering the entire area with fans would be more effective.
What are you referring to?
Since you didn't reach a conclusion, I'm uncertain about what you're hoping from me.
I only drew what seemed to align with your findings: that there isn't a significant benefit from the different fan setups for users of one card inside a well-ventilated case, although there does seem to be some data suggesting certain configurations might work better than others.
If you remember (and just scroll to the top), my initial thought was that "blower" style cards would be better, but after your research:
"In the end, for casual use on a PC with a single card, a small 2-fan GPU appears to be the optimal option."
I don't understand why you're upset about my conclusion. Did you expect more appreciation and a complete change of perspective in response to all your efforts?
I believe search engines nowadays don’t function quite like they used to. Having several cards can be quite troublesome. I’ve created those sketches and drawings. The regular user typically gets a laptop with an integrated graphics built into the CPU. DGPUs seem reasonable only when you’re using models beyond the RTX 4070/5060, which are niche scenarios, or if you’re looking to cut costs since the CPU lacks an integrated solution. I’d still consider planning temperatures for multiple GPUs, especially if they’re specialized needs.