Collection: Laptop Memory

Which laptop memory do you actually need?

Most PC builders get tripped up on laptop memory because the decision starts well before capacity or speed. First you need to know what your machine physically accepts. Many thin-and-light laptops today use soldered LPDDR5X, which cannot be upgraded at all. Others use DDR5 SO-DIMM sticks, and a growing number of newer designs use CAMM2 modules, which are a different physical format and not interchangeable with SO-DIMM. Check that before you compare any specs.

For SO-DIMM machines, the tiers are easy to separate. Entry is a single 8GB or 16GB stick at JEDEC-standard DDR5-4800. It works, but a single stick runs in single-channel mode, which roughly halves the bandwidth the CPU can use. That hurts most when the integrated graphics share system memory. The sweet spot is a matched dual-channel kit of 2x16GB at DDR5-5600, which gives you 32GB and full bandwidth. Enthusiast territory is 2x32GB or 2x48GB, or faster 6400+ kits where the laptop's BIOS and CPU allow it.

Diminishing returns hit hard on speed. Going from 4800 to 5600 with dual-channel is noticeable, particularly on laptops running integrated graphics, because the iGPU is bandwidth-starved. Beyond that you're often chasing a few percent while paying extra, and many laptop BIOSes lock memory to JEDEC profiles anyway. Capacity matters more. Running out of RAM and spilling into the page file is far worse than running 5600 instead of 6400.

Upgrading and technical nuances

DDR5 SO-DIMM is physically different from DDR4 SO-DIMM. The notch sits in a different spot, so they won't fit each other's slots. Your CPU generation decides which one you need. Current Intel Core Ultra mobile chips and recent AMD Ryzen mobile parts are built around DDR5 or LPDDR5X, so older DDR4 sticks are a dead end.

Under the hood, DDR5 moves voltage regulation onto the module through a PMIC and splits each module into two independent 32-bit sub-channels. That improves efficiency and concurrency, but it also means cheap, poorly built modules can run hotter and less stably. DDR5 also has on-die ECC, which corrects errors inside the chip. It is not the same as full ECC and doesn't turn a consumer stick into a workstation part.

Ranks matter too. A dual-rank module lets the memory controller interleave accesses, which can improve real-world throughput slightly at the same speed. Latency is the other number people skim past. A DDR5-5600 CL46 kit and a CL40 kit have the same bandwidth, but the tighter one responds faster. Gaming and iGPU workloads like that. Productivity tasks barely care.

For product families, look at Crucial's standard SO-DIMM range as the dependable mainstream choice, Kingston Fury Impact for performance-oriented kits, Corsair Vengeance SO-DIMM, and G.Skill Ripjaws SO-DIMM. Crucial Pro and Kingston Fury lean toward higher-speed profiles, while the basic Crucial and Kingston ValueRAM lines stick to JEDEC and prioritise compatibility. If your laptop's BIOS won't expose XMP-style overclocking, which is common, paying for a 6400 kit that downclocks to 5600 is wasted money.

If you're also building or upgrading a desktop, don't mix up formats. Desktop Memory uses full-size DIMMs and won't physically fit a laptop. Small-form-factor mini PCs often use SO-DIMMs, so browse Computers if that's the platform you're after.

Practical things to check before buying

Start with your laptop's exact model number and look up the service manual or the manufacturer's memory support list. Check the maximum supported capacity per slot, the maximum speed, and whether the slots are even accessible. Some laptops have one soldered channel plus one open SO-DIMM slot. In that case, matching the soldered memory's capacity and speed gets you proper dual-channel operation. A mismatch can drop you into asymmetric mode, which is slower.

Always buy matched kits for dual-slot machines. Mixing a 16GB stick with a different brand or speed usually forces the slower speed and sometimes causes boot failures. Stick to identical modules for stability.

Heat is rarely a huge issue in laptops, but cramped chassis with limited airflow can push memory temperatures up under sustained loads. If your laptop already struggles, an external stand or Fans, Heatsinks & Cooling accessory can help the whole system, including the memory. Low-profile modules without bulky heat spreaders are best, because SO-DIMM bays are tight.

Voltage is another trap. Standard DDR5 SO-DIMMs run at 1.1V. Some overclock-oriented kits want more, which many laptop firmwares won't supply. Stay with 1.1V parts unless the manufacturer says otherwise.

Plan your storage alongside your RAM upgrade. If you're opening the laptop anyway, it's a good time to check whether an M.2 slot is free for a faster Solid State Drive (SSD). Also remember that integrated graphics borrow system memory, so more RAM can indirectly help games and creative software. If you need serious graphics power, though, memory isn't a substitute for a dedicated Graphics Card / GPU in a desktop build. Your CPU also sets the ceiling for supported speeds, so check CPUs & Processors specs for official memory support.

Finally, power off fully, unplug the charger, and disconnect the internal battery if the service manual says to. Ground yourself before touching the modules.

Brands and local warranty

The reputable names are Crucial (Micron's consumer brand), Kingston, Corsair, G.Skill, Samsung, and Patriot. Crucial and Samsung make their own chips, which gives you good consistency. Kingston, Corsair, and G.Skill source ICs from the major manufacturers and tune the modules for performance.

Australian warranty matters more than most buyers realise. Under Australian Consumer Law, products must be of acceptable quality and fit for purpose, and a reputable local retailer handles replacements without you posting a stick overseas and waiting weeks. Most major memory brands offer limited lifetime warranties, but those only work smoothly when you've bought through an authorised Australian channel. Grey imports and marketplace sellers with no local presence can leave you with fake labels, remarked chips, or no recourse at all. Keep your invoice, and test new memory promptly with a tool like MemTest86 so any fault shows up inside the return window.

Frequently asked questions

How much laptop memory do I need today?

16GB is the comfortable minimum for general use and light gaming. 32GB is the sweet spot for creators, heavy multitaskers, and anyone running virtual machines or large browser sessions. 64GB makes sense for video editing, development, and data work.

Can I mix different RAM sticks in my laptop?

You can, but it's not wise. The system will usually drop to the slowest module's speed and timings, and mismatched ranks or capacities can cause instability or asymmetric operation. A matched kit is the safer option.

Is faster laptop memory worth it?

Only if your hardware supports it. Dual-channel 5600 over single-channel 4800 is a clear gain, especially with integrated graphics. Beyond that, gains are modest, and many laptops lock speeds anyway.

Is DDR5 desktop RAM compatible with a laptop?

No. Desktop DIMMs are physically larger and use a different form factor. You need SO-DIMM or CAMM2, depending on your laptop. For desktops, browse our Motherboards and desktop kits instead.

Can I upgrade soldered memory?

No. Soldered LPDDR5X is fixed to the board. Buy the capacity you'll need over the machine's lifespan, because it can't be changed later.