When Apple unveiled the 2025 MacBook Pro last week with the new M5 chip, one of the main upgrades it listed was 2x SSD speeds, a claim that rings true in our review of the device. However, a directed comparison between the outgoing M4-equipped MacBook Bro and the new M5 one was still on the cards, and now, we've gotten just that. YouTuber Max Tech put both laptops head-to-head to see whether Apple's claims were true, and it turns out, the company may have actually undersold the new machine's SSD speeds.
In the Blackmagic Disk Speed Test, the SSD in the M5 MacBook Pro achieved read speeds of up to 6,323 MB/s, compared to just 2,031 MB/s on the M4 MacBook Pro. It's not like the M4 is "slow" in a vacuum, but the M5 SSD is over three times faster, which is a great generation uplift. Moving to the write speeds, the trend continues but less aggressively, with the M5's SSD reaching a similar 6,068 MB/s while the M4's SSD could only manage 3,293 MB/s, constituting an 84.31% difference. If you average out both results, the SSD in the M5 MacBook Pro is actually ~2.5x faster overall.
