MacBook Neo performance is significantly constrained by Apple’s fanless thermal design, but hardware modifications by ETA Prime demonstrate that the A18 Pro chip possesses substantial untapped processing potential.

Key points

• ETA Prime improved MacBook Neo gaming performance from 30 FPS to 80 FPS using custom copper heat sinks and external liquid-cooled thermoelectric Peltier units.
• Replacing the stock graphene pad with Noctua thermal paste and a copper heat spreader increased Geekbench 6 single-core scores by 15.2%.
• The A18 Pro chip reached a thermal ceiling of 105°C in stock configurations, forcing the system to throttle performance to prevent overheating.
• Despite thermal improvements, the device remains limited by its 8GB unified memory, which forces reliance on slower SSD swap during memory-intensive tasks.
• The copper heat sink modification is a low-cost, portable solution that requires no permanent changes to the laptop's chassis.

Why it matters: These findings highlight the significant performance gap between Apple’s passive cooling designs and the actual capabilities of its mobile silicon. The results suggest that while the A18 Pro is highly efficient, its utility in laptop form factors is currently limited more by thermal management than by the chip's raw processing power.