Enthusiast puts 11 fans and an AiO on an RTX 3080, gains only 4 FPS

We have seen cooling mods before, but this one really pushes the boundaries. Australian YouTuber TrashBench, known for pushing GPU cooling mods into genuinely unhinged territory, just tried his most extreme RTX 3080 build yet. In his latest video, he strips the card down and surrounds it with eleven separate fans plus an AIO liquid cooler, all in an attempt to see how far thermal headroom can actually translate into real performance.

The results are, surprisingly, a mixture of both good and bad. Temperatures dropped by a massive 33°C compared to the stock cooler, which is a serious swing. This result is on par with what TrashBench pulled off in his earlier RTX 3080 project, where an Arctic WS360 workstation AIO dropped VRAM temps from 101.6°C to under 50°C. However, the payoff in frames this time was rather underwhelming. Despite this ridiculous setup, gaming performance only rose by around 4 FPS on average.

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That gap between thermals and FPS is something to note. The RTX 3080 is a power-limited card, not really a thermal-limited one, once you get it below the low 80s Celsius. NVIDIA already tuned the Ampere boost algorithm to chase clocks within a fairly tight power envelope, so once a cooler gets temperatures comfortably low, extra cooling stops translating into extra clock speed.

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TrashBench has run into this pattern before, and it is also what we saw when modders stripped the card down to nothing but passive heatsinks or ran it with no active cooling at all and it still topped out around 87°C.

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This is a fun science experiment and nothing more. Eleven fans wired around a two-slot GPU is not something anyone should try to replicate on a daily driver, and it says nothing about durability, cable management, or whether your case can even fit that setup.

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It is really a demonstration of diminishing returns at the end of the day. Once a GPU is already running cool enough to hit its power limit, more cooling mostly just makes things quieter and longer-lasting rather than faster.

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Frequently Asked Questions

TweakBot answers common questions about this news using TweakTown's own coverage from this page and related content from our archive. Tap a question to reveal the answer, or type your own below.

Question #1

How much did TrashBench's 11-fan + AIO mod reduce RTX 3080 temperatures compared to the stock cooler?

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Question #2

How much gaming performance (FPS) improved after the 11-fan + AIO mod on the RTX 3080?

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Question #3

Why did huge temperature drops on the RTX 3080 only yield about a 4 FPS improvement?

Because the RTX 3080 is power-limited rather than thermal-limited once temperatures are already low, the big temperature reduction did not allow significantly higher sustained clocks. NVIDIA tuned the Ampere boost algorithm to chase clocks within a tight power envelope, so extra cooling beyond getting temps comfortably low mostly stops translating into higher frame rates and yields diminishing returns.

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Question #4

Does the article say this 11-fan setup is recommended for daily use or prolonged reliability?

The article explicitly says this is a fun science experiment and "not something anyone should try to replicate on a daily driver," so it is not recommended for daily use. It also notes the setup "says nothing about durability, cable management, or whether your case can even fit that setup," while adding that extra cooling generally makes things quieter and potentially longer-lasting rather than faster.

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For anyone chasing real gains on an RTX 3080 without turning their PC into a wind tunnel, a solid single AiO or even a well-mounted aftermarket water block paired with a fresh repaste and an undervolt tends to get most of the available performance back, with far less hassle. Anything past that stops making much sense. The sensible upgrades are a case with better airflow and an aggressive but sane fan curve, not eleven separate fans bolted to the card itself.