How much RAM do you need in a laptop?

Quick answer: how much RAM is enough?

• 4GB: only for very light use, one or two tabs and a document. Modern Windows and browsers feel cramped on it.
• 8GB: a good minimum for browsing, school work, office apps, video calls and streaming.
• 16GB: comfortable for many browser tabs plus other apps, programming, graphic design, light video editing and gaming.
• 32GB or more: for professional video editing, 3D work, large datasets and running virtual machines.

These are guides, not rules. What matters is how much your own work needs, and you can measure that in a few minutes.

What does RAM actually do?

RAM (random access memory) is your laptop's short-term working space. When you open a program, a browser tab or a document, Windows loads it into RAM so the processor can reach it quickly. Your storage drive (the SSD or HDD) is the long-term filing cabinet. RAM is the desk you are working on.

When the desk is full, Windows starts moving things onto the floor, which means using a part of your drive called the page file as emergency memory. On an SSD this is a mild slowdown. On a hard drive it can make the laptop crawl, with freezing and a drive light that never stops. That is why too little RAM feels like a slow, stuttering laptop.

RAM is also cleared when you shut down. It is not storage and does not hold your files.

How to check whether you are running out of RAM

1. Work normally for a while with your usual programs and browser tabs open. Do not test on a fresh start with nothing open.
2. Press Ctrl + Shift + Esc to open Task Manager (click More details if needed).
3. Click Performance, then Memory.
4. Read the graph and the figures: In use, Available and Committed.

How to read it:

• If memory use stays well below about 70 per cent while you work, you have enough.
• If it often sits above about 85 per cent and the laptop stutters, you are short on RAM.
• If the memory graph is fine but the laptop is slow, look at the Disk and CPU graphs. A disk at 100 per cent points to a hard drive problem, and a CPU at 100 per cent points to the processor or a runaway program.

Next, click the Processes tab and click the Memory heading to sort. You will see exactly which programs use the most. Browsers with many tabs are often the main consumers.

What to try before buying more RAM

Cheap fixes can give you headroom first.

1. Restart the laptop. Some programs slowly consume memory the longer they run.
2. Reduce start-up programs. In Task Manager, open Startup apps, right-click anything you do not need at sign-in and choose Disable. This frees memory every time you start.
3. Close or suspend tabs. In Chrome and Edge, turn on the memory-saving or sleeping tabs feature in the browser settings, so unused tabs release memory.
4. Uninstall unused programs in Settings, then Apps, then Installed apps.
5. Scan for malware, since some hidden programs use memory and processing power.

Be careful with so-called RAM booster or cleaner programs. They do little and some are unwanted software themselves.

RAM, SSD or processor: which one is slowing your laptop?

Many people buy RAM when the real problem is something else.

• Slow start-up, slow program opening, disk at 100 per cent: usually an HDD. An SSD helps most.
• Memory regularly full, many programs open, stutters when multitasking: more RAM helps.
• Processor at 100 per cent, laptop hot, fan loud: overheating, dust, a runaway program or an old processor.

If your laptop has a hard drive and also 4GB of RAM, doing both upgrades gives the best result. If you have to pick one, the SSD usually makes the bigger difference. Once you have an SSD and the memory is still full, add RAM.

Can you upgrade the RAM in your laptop?

It depends on the laptop. Three situations exist:

• Slots you can fill or replace. Most older and many business laptops have one or two memory slots. These can be upgraded.
• Part soldered, part slot. Some laptops have a fixed amount on the board and one free slot for adding more.
• Fully soldered. Many thin, modern laptops have memory fixed to the board, and it can never be upgraded. In that case, buy the amount you will need for the laptop's whole life.

How to see what your laptop has

1. Open Task Manager, then Performance, then Memory.
2. Look at the bottom right. Slots used (for example 1 of 2) tells you how many slots exist and how many are filled. Speed shows the memory speed. Form factor shows SODIMM for upgradeable laptop memory sticks, or Row of chips for soldered memory.
3. Open Settings, then System, then About to see the installed RAM and whether Windows is 64-bit.

If Slots used shows 1 of 1, or the form factor is soldered, the memory is not upgradeable.

How to choose the right RAM to buy

RAM is not universal, so check these before you spend:

• Type: DDR3, DDR3L, DDR4 or DDR5. They are physically and electrically different and are not interchangeable.
• Size: SODIMM (laptop) not DIMM (desktop).
• Capacity: check the maximum your laptop supports, which is in the specifications of your model.
• Speed: match the laptop's supported speed. Faster memory usually runs at the slower speed, but not always smoothly.
• Pairs: when possible, use two identical sticks to get dual-channel performance.

Free tools such as CPU-Z can read your existing memory's type and speed (on the Memory and SPD tabs), and many memory makers offer an online compatibility checker where you enter your laptop model. Searching your exact laptop model with the words RAM upgrade is another reliable shortcut.

Also check the Windows version. A 32-bit copy of Windows cannot use more than about 4GB of RAM. If Settings, then System, then About shows a 32-bit system on a 64-bit processor, fit the 64-bit version of Windows before adding more memory, or the extra will be wasted.

How to fit and test new RAM

1. Back up your files first. It is a low-risk job, but it is good practice.
2. Shut the laptop down fully (not sleep), unplug the charger and, if the battery is removable, take it out.
3. Touch a bare metal part of something grounded to discharge static, and avoid carpeted floors.
4. Open the memory cover on the bottom, or the full back panel, following your model's service guide.
5. Release the clips at each side of the old stick. It springs up at an angle. Pull it out by the edges.
6. Insert the new stick at an angle into the slot, then press down until the clips click.
7. Close up, reconnect power and start the laptop.

Check that it worked: open Settings, then System, then About and read Installed RAM. Then search the Start menu for Windows Memory Diagnostic, choose Restart now and check for problems, and let the test finish. If the laptop beeps, does not start, or shows less memory than expected, switch off, take the stick out and reseat it, making sure it is fully pressed in.

Frequently asked questions

Written by the ICT AccessPoint team

We repair laptops and build websites and business systems. Have a question this guide did not answer? Message us.

This guide is general advice. Every device and business is different, so if you are unsure, ask a technician before you act.