Cheapest RAM in the UK, ranked by price per gigabyte

RAM prices in the UK, 2026: how this site works

ramprices.uk tracks 4,268 RAM kits and modules on Amazon.co.uk and ranks every one of them by the number that matters when you are buying capacity: price per gigabyte. A 32GB kit at £60 beats a 16GB kit at £35 even though it costs more, and dividing by the kit's total capacity is the only way to compare a 2x8GB kit, a single 32GB stick, a Corsair against a Crucial, or DDR4 against DDR5 on the same scale. Today the cheapest kit works out at £0.00 per gigabyte and the median is £8.53/GB; the top of the table above is ESUS IT MEMORY RAM UPGRADE 8GB for Apple Mac Mini MacBook Pro iMac DDR… at £0.01.

Prices and price history come from Keepa's tracking of Amazon.co.uk and are refreshed every day. Capacity, kit layout, generation, form factor, speed, ECC and the platform a kit is for (desktop, laptop, Mac or server) are read from each listing's title, feature bullets and description, and kits that cannot be parsed to a total capacity are left out rather than guessed. Rankings are never influenced by commission; the site is funded by Amazon affiliate links, which is set out on the about page.

Start with the page that matches your machine

• By what you own: desktop DIMMs, laptop SO-DIMMs, Mac-compatible memory (Intel iMacs and the 2018 Mac mini only), and ECC and registered server memory.
• By generation: DDR5 for AMD AM5 and current Intel boards, DDR4 for AM4 and most laptops from 2016 to 2023, DDR3 for machines before about 2015. They are keyed differently and only one fits your board; the DDR4 vs DDR5 guide explains which and whether it matters.
• By size: 16GB is the floor for a modern PC, 32GB the default for a new gaming or creative build, 64GB and 128GB for editing, virtual machines and workstations. The how much RAM guide walks through the cases.
• By brand: Corsair, Crucial, Kingston, G.Skill, TeamGroup and Samsung, each with its ranges explained.

Why prices, deals and averages are handled the way they are

Memory prices rose sharply through 2026 as DRAM makers shifted capacity to the memory used in AI accelerators; our price index measures the move by generation and kit size from a year of stored history, and the price guide explains it. In a market like that, a "was £X" badge or an average is easily misleading, because a fortnight's spike drags the average up and makes today's normal price look like a discount. So every product page shows the kit's median price over 90 days and a year, its 12-month low, and how much of the past year it was cheaper than today, and the price drops page applies the same test to every drop Keepa flags, every 30 minutes, splitting the ones worth a look from the ones that are not. Amazon Warehouse returns are included wherever Amazon lists them; memory is one of the safest things to buy that way, and the Warehouse guide covers the grades and the one thing to check.

Use the filter bar to pin the generation your board takes, the capacity you want and a minimum rating, then buy from the top of the ranking after a glance at the price history. If two kits are within a few pence per gigabyte, prefer a matched pair over a single stick, a low-profile heatspreader if your CPU cooler is large, and a speed at the platform's sweet spot (DDR4-3200 CL16, DDR5-6000 CL30). That is the whole method; the £/GB guide has the caveats.