The new M5 MacBook Pro features an SSD that is significantly faster than its predecessor, achieving read speeds of up to 6,323 MB/s and write speeds of 6,068 MB/s, making it approximately 2.5 times quicker overall than the M4 model. This performance exceeds Apple's initial claims and is attributed to advancements in the SSD controller and architecture. The improvements promise enhanced efficiency for tasks such as video editing and overall system responsiveness.