Storage & Performance Terms

Flash-based storage with no moving parts. Dramatically faster than HDDs — boot times drop from minutes to seconds. SSDs are the single most impactful upgrade for a slow laptop. Available in SATA and NVMe variants with very different speeds.

Non-Volatile Memory Express — the fastest consumer SSD interface, up to 7× faster than SATA SSDs. Uses the M.2 slot directly connected to the CPU. Most laptops made after 2018 support NVMe. If your technician is recommending a SATA SSD for an NVMe slot, ask why.

Mechanical spinning storage. Far slower than SSDs and vulnerable to physical shock. If your laptop takes 3–5 minutes to boot and feels sluggish, it likely still has an HDD. Replacing it with an SSD is the most cost-effective performance upgrade available.

Random Access Memory — temporary working memory your laptop uses to run programs. 8GB is the minimum for smooth everyday use. 16GB is recommended for multitasking. On most laptops RAM is upgradeable; on MacBooks with Apple Silicon it is soldered and cannot be upgraded after purchase.

Embedded MultiMediaCard — soldered flash storage found in budget laptops and Chromebooks. Significantly slower than NVMe SSDs. eMMC cannot be upgraded or replaced separately — it is part of the motherboard. If your budget laptop feels slow, eMMC storage is usually the bottleneck.

Upgrading adds capacity or speed (e.g. 256GB → 1TB SSD, 8GB → 16GB RAM). Replacing swaps a failed component for the same spec. Always clarify with your technician which is being done and why — a like-for-like replacement of a failed HDD with another HDD misses the opportunity to upgrade to an SSD.