Will this RAM fit your laptop?
Check three things before you pay: the type (DDR4 or DDR5), whether the laptop has SO-DIMM slots at all, and the maximum capacity the manufacturer supports. The spec sheet or service manual of your exact model lists all three. A laptop takes the type its board was designed for, and DDR4 and DDR5 modules do not fit each other's slots.
SO-DIMM is the small module used in laptops and small form factor PCs. A Kingston FURY Impact DDR5 SO-DIMM, for example, measures 69.6 mm by 30 mm. Our tables only list laptop modules here, so the kits on this page are not for desktop boards. For desktop sticks, use the DDR5 and DDR4 price pages.
Soldered memory, CAMM2 and Macs
Many thin laptops use soldered LPDDR5 or LPDDR5X that cannot be replaced. If the spec sheet says soldered, no module on this page will help, and the amount you buy is the amount you keep. JEDEC published the CAMM2 standard in December 2023 as a replaceable alternative to soldered memory, but it is a different module shape and will not fit a standard SO-DIMM slot.
Apple silicon Macs are the strictest case. Apple states that memory is part of the M-series chip package and cannot be upgraded, so choose the amount at purchase.
Which laptop kit should you buy?
Match the laptop's type and speed, and buy a matched pair if it has two slots, because two modules run in dual channel. Capacity depends on the work: 16GB is the safe floor for current Windows laptops, 32GB helps with many browser tabs, virtual machines and editing. This week the cheapest 32GB DDR5 laptop kit costs $395.99, and the cheapest 32GB DDR4 laptop kit $162.00.
If your laptop has two slots and both are full, you replace modules rather than add one. Count the cost of the modules you take out against the new kit.