Should I upgrade to an SSD or add more RAM first?

If the machine still has a spinning hard drive, the SSD comes first, every time. It is the single biggest speed upgrade and transforms how the whole computer feels. Add RAM after, only if you run out of memory with lots of programs open at once.

Which gives a bigger speed boost, an SSD or more RAM?

An SSD, by a wide margin, if you are still on a hard drive. It slashes boot and load times and makes everything feel instant. More RAM only helps once you are short of memory, which shows up as slowdowns when heavily multitasking, not as general sluggishness.

How do I know if I need more RAM?

If your computer slows to a crawl specifically when you have many tabs or programs open at once, and is fine otherwise, you are likely short on RAM. If everything is slow all the time, especially booting and loading, that is the hard drive, and an SSD is the fix.

SSD or More RAM: Which Should You Upgrade First?

Published: ٤ سبتمبر ٢٠٢٦

Live answer · Amazon.com

Pulling live prices…

Live data across PricePerGig listings. Prices may change; Updated every few hours.

📊 As of 28 September 2026, the typical SSD on Amazon.co.uk is £305/TB or £0.305/GB across the 2,387 live listings we track, with the widest choice of drives priced around £134/TB or £0.134/GB. The best deals on Amazon.co.uk start from about £140 for 1TB (£140/TB), £228 for 2TB (£114/TB) and £430 for 4TB (£107/TB). The current best value is 4TB at roughly £107 per TB.

Sourced from real discussions on r/buildapc and r/techsupport, cross-checked against live PricePerGig listings.

Got a slow computer and a bit of upgrade money, torn between an SSD and more RAM? Let me make the call easy.

If the machine still runs on a spinning hard drive, the SSD comes first. No contest.

It is the single most transformative upgrade you can make, and it fixes the most common cause of a slow PC. Sort that, then think about RAM.

The table above shows the live SSD prices on your marketplace for the upgrade that makes the biggest difference.

Why the SSD almost always wins

Here is the key insight about slow computers.

Most sluggish machines are held back by their hard drive, not their memory. The drive is glacially slow at the constant small reads that booting and opening apps depend on.

Swap that hard drive for an SSD and the bottleneck vanishes. Boot drops to seconds, programs snap open, and the whole machine feels years younger. We cover this in is it worth upgrading an old laptop to an SSD.

No RAM upgrade comes close to that feeling if you are still on a hard drive. So the SSD goes first.

When RAM is the right call

RAM is not useless, it just fixes a different problem.

More memory helps when you run out of it, which shows up as the machine grinding to a halt specifically when you have lots of programs or browser tabs open at once.

If your computer is fine normally but chokes under heavy multitasking, that is a memory shortage, and more RAM is the answer.

The two upgrades solve different symptoms, which we explain in storage vs memory.

How to tell which you need

A quick diagnosis.

Slow all the time, especially booting and loading, and still on a hard drive? That is the drive. Get an SSD first.
Fine normally but crawls with many things open at once? That is memory. More RAM will help.
Both? Do the SSD first for the bigger overall lift, then add RAM.

Match the upgrade to the symptom and your money goes where it counts.

The ideal order

For most older machines, here is the sequence.

SSD first. The biggest, most noticeable boost, and it benefits everything.
RAM second, only if you actually hit memory limits while multitasking.

Often the SSD alone is enough to make an old machine genuinely pleasant again, and you never need the RAM at all.

The bottom line

If you are still on a hard drive, upgrade to an SSD first. It is the single biggest speed improvement and cures the most common cause of a slow computer. Add RAM afterwards only if you run short of memory under heavy multitasking.

Diagnose the symptom, do the SSD first, and grab a good value drive from the live prices above. Nine times out of ten, that one upgrade is the magic your slow PC was crying out fro.

Why the SSD almost always wins

When RAM is the right call

How to tell which you need

The ideal order

The bottom line

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