YouTuber’s water‑cool mod frees up MacBook Neo’s A18 Pro — single‑core up to 18.6%, gaming much higher

The headline result

It has been reported that YouTube creator ETA Prime fitted a water‑cooling setup to an Apple MacBook Neo and unlocked substantially higher performance from the machine’s A18 Pro chip. Short answer: the laptop throttles under load because of a lightweight thermal path, and better cooling changes the story. Longer answer: with a copper pad retrofit and a magnetically attached smartphone water‑cooler, ETA Prime measured single‑core Geekbench 6 gains of about 18.6% and multi‑core gains near 17.5% compared with stock thermals.

What he did, and how it worked

According to reports carried by IT之家 and ifeng, the mod was twofold. First, ETA Prime replaced the stock graphite thermal sheet with a copper pad to create a proper conduction path from the A18 Pro to the case. Then he attached a small Peltier‑assisted liquid cooler—originally designed for phones—so its magnetic cold plate sat directly over the copper pad. Reportedly, the copper alone produced notable improvements (Geekbench single‑core +15.2%, multi‑core +9.7%), and the full water‑cool rig pushed those numbers higher. In gaming tests, No Man’s Sky reportedly rose from roughly 30 fps to an average near 80 fps.

Why this matters (and who should care)

Why does this matter? Apple’s new laptop is part of a wider industry shift to custom phone‑class silicon in notebooks; thermal design choices that save space or weight can limit sustained performance. ETA Prime’s teardown is not a recommendation for everyday users—this hack is invasive, voids warranties and depends on hardware not intended for laptops. But it is a clear engineering demonstration: when thermal limits are removed, Apple’s A‑series silicon can deliver much more. For Western readers, consider this a reminder that device benchmarks often reflect thermal policy as much as raw chip ability.

Context and caveats

It has been reported that ETA Prime conducted the tests; independent lab verification is lacking and Apple designs expect a trade‑off between noise, battery life and sustained throughput. For most MacBook Neo owners the stock cooling is adequate for typical use. Still, the clip underscores a broader DIY and modding culture that surfaces in China and globally—where hardware enthusiasts push devices beyond manufacturer targets.