How to choose RAM — DDR4 or DDR5, 8, 16 or 32 GB?

When a computer slows down, most people think about replacing the processor. In fact the problem is often the memory: 20 tabs are open in the browser, the memory is full, and the system slows down as it turns to the disk. Choosing RAM is a cheap and fast fix, but you have to choose it correctly, because the wrong module will not fit your computer at all. The Dona catalogue has 45 memory modules, from 576,000 UZS to 8.5 million UZS.

How much memory you need#

In 2026, 8 GB is the entry level and 16 GB is the practical standard. If you play games, or keep a browser, Photoshop and a messenger open at the same time, start with 16 GB. 32 GB is only needed by people who work with editing and 3D; an ordinary user gets nothing for that money.

DDR4 or DDR5: the choice is not yours#

This is where people go wrong most often. DDR4 and DDR5 modules physically do not fit each other’s slots; their contacts are different. So you cannot pick DDR5 because it is “faster”: you need the type that matches the slot on your motherboard.

That is why the order is:

1. Find out the model of your motherboard or laptop.
2. Check whether it supports DDR4 or DDR5.
3. Only then choose the size and the frequency.

There is nothing wrong with buying DDR4 for an older computer. DDR5 is faster on new platforms, but DDR4 3200 MHz does not fall noticeably behind in everyday work and is much cheaper.

DIMM and SODIMM: desktop or laptop#

The second most common mistake. DIMM is a long module for a desktop computer. SODIMM is a short module for a laptop. They do not fit each other’s slots either. If the name in the catalogue ends with SODIMM, it is for a laptop.

Note: in many new laptops the memory is soldered to the board and cannot be replaced at all. Before buying a module, find out whether your laptop has a free slot.

Frequency and dual channel#

Frequency (MHz) is the speed of the memory. The practical level for DDR4 is 3200 MHz, for DDR5 it is 5600 MHz. Higher exists, but in ordinary work the difference is small.

Dual channel matters more than frequency. The idea is simple: if you install two 8 GB modules instead of one 16 GB module, the memory works in two channels and speed goes up. With integrated graphics this difference is especially noticeable. That is why the catalogue sells kits labelled “2x8GB” or “16*2”, and not for nothing.

The full list of modules is in the RAM section. Which type fits you is found in your device’s own description: for a laptop, the laptops section lists the memory type and size of each model.

Real prices (Dona, September 2026)#

Prices are taken from the app catalogue as of 10 September 2026. A seller can change a price at any time; the current price and availability are shown on the product page in the app.

• GMOG DDR4 8GB 3200MHz — for a desktop — 576,000 UZS. The cheapest module.
• Lexar DDR4 8GB 3200MHz — for a desktop — 619,200 UZS.
• Lexar DDR4 8GB 3200MHz SODIMM — for a laptop — 633,600 UZS.
• GMOG DDR4 16GB 3200MHz — single module, 16 GB — 1,008,000 UZS. The best value option.
• Kingston DDR4 16GB 3200MHz — single module, brand name — 1,195,200 UZS.
• Patriot DDR5 8GB 5600MHz — for new platforms — 1,296,000 UZS.
• Kingston DDR4 16GB 3200MHz (2x8GB) RGB — dual channel kit — 1,987,200 UZS.
• Kingston DDR5 16GB 5600MHz SODIMM — DDR5 for a laptop — 2,376,000 UZS.
• Lexar DDR5 32GB 5600MHz — for editing and 3D — 4,363,200 UZS.

What to ask in the live stream#

RAM is not chosen by its looks, but two things get settled in a live stream. First, the seller brings the module’s label close to the camera and you read the type, frequency and timings with your own eyes instead of relying on an abbreviation in the description. Second, the seller can tell you from experience whether it will fit your motherboard. Before joining the stream, write down your computer or motherboard model and post that name in the chat.