M4 Pro MacBook Pro vs M3 Pro: Internal Components Comparison

An in-depth teardown by iFixit has shed light on the internal components of the new M4 Pro MacBook Pro. According to 9to5Mac, the M4 Pro model closely resembles its predecessor, the M3 Pro, in terms of internal design.

One notable difference is the slightly larger heatsink in the M4 Pro, likely to handle the increased power output of the new M4 Pro chip. Additionally, some smaller integrated circuits (ICs) have been repositioned on the logic board.

Despite these changes, the M4 MacBook Pro maintains the dual-fan cooling system and battery capacity of the previous model. On the outside, there are minimal changes, with the main update being an extra Thunderbolt port on the base M4 model, bringing it in line with the M3 Pro and M3 Max configurations.

However, the M4 MacBook Pro has not made significant improvements in repairability. The battery replacement process remains challenging, as it still requires the removal of the trackpad to access the adhesive tabs securing the battery.

Looking ahead, Apple is said to be planning a major redesign for the MacBook Pro in 2026, coinciding with the 20th anniversary of MacBook Pros. This redesign may include a thinner chassis, OLED display technology, and the debut of the M6 chip family. It’s unclear if these changes will address current repairability concerns.

While the M4 Pro MacBook Pro offers performance enhancements, its internal design remains largely unchanged from its predecessor, as revealed by this teardown.