How much RAM do you need in 2026: is 8 GB enough, or is it 16 and 32 GB now?

“8 GB is enough for normal work, anything more is a pointless luxury.” Shops have been repeating this rule of thumb for a good ten years — and for a good ten years it has been getting less and less true. Laptops regularly land on our bench “for a clean-up, because it drags terribly”, and after five minutes of measuring the picture is clear: there is nothing wrong with the software, it is just thirty browser tabs, Teams and Excel fighting over memory that would have been plenty a few years ago, but is not any more.

The question “how much RAM” has no single answer. It has several, depending on what you actually do on the computer — and one of them you can find out by measuring the machine you already own.

The short answer: For a new computer in 2026, treat 16 GB as the sensible minimum — Windows 11 takes 4–5 GB the moment it boots and the browser and messaging apps quickly claim the rest. 8 GB is only defensible on the cheapest machines used for one task at a time. 32 GB pays off for video editing, virtual machines, development, large photos and local AI tools. If you are already short of memory, you can tell in a minute: Ctrl+Shift+Esc → Performance tab → Memory; a figure that stays above 85–90 % during normal use means it is time to add more. And watch out for thin laptops with soldered RAM — there an upgrade is never possible, so buy more from the start.

Why memory suddenly falls short when it used to be enough

RAM is the computer’s desk: everything the system is currently working with has to sit on it. Once the desk fills up, Windows starts offloading part of the data into the page file on the disk — and even a fast SSD is orders of magnitude slower than memory. From the outside this looks like a mysterious slowdown: switching between windows takes seconds, browser tabs reload when you come back to them, video calls stutter. We covered in detail what this offloading looks like in Task Manager and why it drives the drive flat out in our article on the disk running at 100 %.

Why are the demands growing? No conspiracy, just items adding up:

• The browser is today’s biggest eater. Each tab runs as a separate process and takes tens to hundreds of megabytes. Thirty open tabs can easily mean 4–6 GB for the browser alone.
• Messaging apps stay running all day. Teams, Slack, Discord and WhatsApp are technically browsers of their own — each holds on to hundreds of megabytes even when you are not using it.
• Windows 11 by itself claims 4–5 GB after boot, and indexing, antivirus and cloud sync pile on top of that.
• The lingering move away from Windows 10. Support for Windows 10 ended on 14 October 2025, and machines that ran on it until then are gradually catching up to 11. The difference shows even in the manufacturer’s official minimums: 64-bit Windows 10 got by with 2 GB, while Windows 11 asks for at least 4 GB — twice as much, and that is just to start the system, not to work in it.
• A new layer since 2024–2025: AI features. Browser assistants, call transcripts, photo search — and above all local AI models, which more and more people run directly on their own machine. Smaller language models in a compact form swallow several gigabytes, and larger ones cannot be run sensibly without 32 GB of memory.

The result: a configuration that felt generous in 2019 is tight today.

Measure first, buy second

Before you start thinking about a purchase, spend a minute measuring — there is no point paying for memory that is not what is slowing you down.

1. Press Ctrl+Shift+Esc to open Task Manager.
2. Switch to the Performance tab and click Memory. You will see total capacity, current usage as a percentage and a graph.
3. Measure during a normal working session — with everything open that you genuinely use during the day. A figure taken right after a fresh restart with an empty desktop tells you nothing.
4. On the Processes tab, click the Memory column header — the processes sort by consumption and you immediately see who is taking the most.

How to read the result: brief peaks approaching 90 % are fine, as the system can help itself with memory compression. The problem is sustained usage above 85–90 % accompanied by symptoms — tabs reloading, second-long freezes when switching apps, the disk running flat out because of offloading. That is the moment when adding RAM brings an immediately visible change.

And do not be alarmed that the browser “eats too much”. Memory that would otherwise sit idle is deliberately used by the system and applications as a cache — full RAM is not a fault in itself. What matters are those symptoms of shortage.

How much RAM for what: four real-world scenarios

8 GB — simple tasks only, and one at a time. E-mail, banking, YouTube, the occasional letter in Word, a few browser tabs. 8 GB will handle that, but with no headroom: Windows takes more than half of it and there is nothing left for peaks. On a new laptop we would only recommend 8 GB today if the budget really is stretched and the memory can be expanded later. On a machine with soldered memory it is a dead end.

16 GB — the standard for home and office. A browser with dozens of tabs, Office, Teams, editing holiday photos, ordinary games. This is where most households and sole traders sit, and 16 GB gives them exactly the headroom that keeps the computer from slowing down even at peak. Microsoft itself confirms that 16 GB has become the new baseline: for computers carrying the Copilot+ badge it requires at least 16 GB of memory — a machine with AI features built into the system will not go below that line. If you are choosing a new laptop, our detailed guide to the specifications, including the processor and display, is in the article how to choose a laptop in 2026.

32 GB — work that genuinely consumes memory. Video editing, batch editing of RAW photos, programming with containers and virtual machines, large Excel models, gaming while streaming — and increasingly local AI tools. These are not “just in case” scenarios; here 32 GB really does fill up and the difference against 16 GB shows every single day.

64 GB and more — specialist work. Working with large virtual environments, 4K/8K editing, larger local AI models, scientific computing. Anyone who needs such a machine usually knows exactly why; for an ordinary user it is money thrown away that is then missing elsewhere — on a better display, for instance. On desktops the situation is more relaxed, as there are usually four slots and adding memory is easy; we go through the differences between laptops and desktops in the article laptop vs. desktop in 2026.

One more practical note: memory works fastest as a pair of modules (so-called dual-channel mode). This shows mainly on laptops with integrated graphics, which borrow from the RAM — two 8 GB modules will outperform a single 16 GB one.

The trap they will not tell you about in the shop: soldered RAM

Now for the most important part for anyone still choosing a laptop. More and more thin and light models have their memory soldered directly onto the mainboard. No slot, no modules — the capacity you buy the laptop with is final. It cannot be upgraded by a service shop, it cannot be “worked around somehow”, it cannot be done at all.

A salesperson usually will not point this out unprompted, and in the e-shop specification table it hides behind inconspicuous words such as “onboard” or “integrated memory”. Yet for the machine’s lifespan it is a more fundamental figure than the colour of the lid:

• Soldered memory + 8 GB = a laptop with a short shelf life. Tight today, useless for anything demanding in two years — with no way out.
• Soldered memory + 16 GB is fine for office work, but if you are planning on five years or more, or on anything demanding, buy 32 GB straight away. Paying extra at purchase is the only chance you get.
• Combinations also exist: part of the memory on the board, one free slot. Expansion is possible, but only up to a point.

Fortunately, the classic business lines (ThinkPad, EliteBook, Latitude and most “ordinary” 15-inch machines) still tend to have slots; the emerging standard for removable low-power memory modules, LPCAMM2, may remove the trap in time, but so far it only appears in a handful of higher-end models. So before you buy, check the service manual for the specific model — or leave it to us, we do it routinely as part of our buying advice.

Adding RAM: a cheap job when the machine allows it

If your current computer failed the measurement and has a free slot or removable modules, adding memory is one of the most rewarding service jobs there is: quick, relatively cheap and with an immediately visible result.

There are a few pitfalls that make it worth getting advice, though. The memory type has to match exactly — DDR4 and DDR5 are mechanically and electrically incompatible, and the frequency and the state of the second slot matter too. New machines are now mostly DDR5, while DDR4 remains in older and cheaper models, so “the memory from my last laptop” generally will not fit the new one. A wrongly chosen module will either not come up at all or will run slower than it could. That is why in the workshop we first verify from the serial number what the specific machine can take, fit the module, run a memory test and only then hand the machine back. Labour costs roughly from CZK 600 plus the price of the parts — you will find the details on the SSD and component replacement page and in the price list.

Do not fancy deciphering service manuals and checking whether your laptop has DDR4, DDR5 or memory on the board? That is exactly what we are here for — book online or call 774 777 774. From the serial number we will work out in a few minutes what your machine can handle, tell you the price up front and order the modules for you.

What adding RAM will not fix

So that it does not sound as though RAM is a cure-all: it is not. Two situations where new modules will disappoint:

• An old spinning drive. If the system runs from an HDD, that is the main brake — and memory will not change it. We describe the tell-tale signs and the fix in the article on the disk at 100 %; in that case the repair is called an SSD, not RAM.
• A cluttered or neglected system. A startup list full of junk, foreign processes running in the background or overheating can floor a computer even with half-empty memory — our general approach to finding the culprit is in the article slow computer: what to do.

If you are not sure which of these is troubling your machine, we will measure it for you: diagnostics costs roughly CZK 600 if no repair follows — when a repair is carried out, it is covered by the job.

Summary

1. Do not buy by rule of thumb, buy by measurement: Ctrl+Shift+Esc → Performance → Memory, during normal use.
2. Sustained usage above 85–90 % + reloading tabs and freezes = you are short of memory.
3. A new machine in 2026: 16 GB minimum, 8 GB only on the cheapest, upgradable ones, 32 GB for video, development, large photos and local AI.
4. Soldered RAM can never be upgraded — on thin laptops, buy the capacity you will need for good.
5. Two modules are faster than one (dual-channel mode), especially with integrated graphics.
6. An upgrade at the workshop: compatibility check, fitting and testing, labour roughly from CZK 600 + parts.
7. RAM will not cure an old HDD or a clogged system — find the real brake first.

Memory is today the most common silent brake on otherwise healthy computers — and yet it can be measured, topped up and forgotten about for years, all in a single afternoon.