GPU overclocker uses chilled car antifreeze and pond pump to push Intel card to sub-zero temps, sets world record
By 2026 standards, this is firmly 'old hardware,' but that's exactly the point. If something went catastrophically wrong, the loss was survivable, and just as importantly, these parts draw far less power than modern high-end CPUs and GPUs. Lower heat output matters when your 'cooling system' is a household freezer with a compressor designed to deal with groceries, not a 600 W load spike.
Instead of resting components on shelves or freezer walls, TrashBench completely emptied the freezer and instead suspended them in mid-air using flexible straps. Cables were carefully routed and sealed to minimize moisture ingress from outside air. At the bottom of the chest freezer, he placed silica gel packed into breathable socks, acting as an active desiccant system . That combination of large freezer volume, minimal airflow turbulence, and aggressive moisture control is what allowed the system to stabilize instead of instantly fogging up and dying.
TrashBench tested performance before freezing, inside the freezer at stock clocks, and again after manual GPU overclocking. The benchmarks included 3DMark Time Spy , 3DMark Fire Strike , Cyberpunk 2077 , Far Cry 6 , and Shadow of the Tomb Raider , all venerable tests well-suited to the 2016-vintage hardware. Simply placing the PC components into the –28 °C freezer resulted in very marginal performance improvements. In most cases, the difference was within the noise; the only clear hardware-level gain was a 51 MHz increase in sustained GPU clock, thanks to lower operating temperatures.
Manual GPU overclocking of around +240 MHz on the core produced more noticeable gains, albeit still nothing earth-shattering. The largest uplift was in Shadow of the Tomb Raider , which gained about 8% (102 FPS to 110 FPS), and then 3DMark Fire Strike improved about 7%. Other tests showed smaller improvements, and TrashBench didn't specify exact in-game settings, so the results should be taken as directional rather than definitive. In other words: freezing your PC won't magically turn a GTX 1070 into a monster.
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Reference reading
- https://www.tomshardware.com/pc-components/air-cooling/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/air-cooling/australian-modder-solves-pc-in-a-freezer-conundrum-with-sheer-size-socks-filled-with-silica-gel-power-condensation-conquered-and-minimal-overclocking-gains-on-display-at-minus-28c#main
- https://www.tomshardware.com
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