How to compare PC component deals

1. Establish exactly what is being sold

Copy the manufacturer’s full part number from each listing. Compare that number with the manufacturer’s product page, then compare capacity, variant and included accessories. A retailer’s own stock code can help you find its listing again, but it is not necessarily a manufacturer part number.

A matching headline is only a starting point. A GPU family name can cover different memory capacities and board designs; a memory kit description needs both the total capacity and the number of modules. Treat an unclear or conflicting listing as unresolved and ask the seller to confirm it before ordering.

• Graphics cards: record the board manufacturer, complete model suffix, memory capacity and product dimensions.
• Memory: record the kit part number, generation, module count, capacity, specified data rate and timings.
• Storage: match the capacity, interface, physical format and any included heatsink.
• Motherboards and power supplies: check the exact variant or revision and the supplied accessories and cables.

Specifications are not interchangeable labels. For example, M.2 drives can use SATA or NVMe, so the same physical description does not establish the same connection requirements. Kingston explains the distinction between M.2 SATA and NVMe drives.

2. Compare the amount you will actually pay

Use the price for your delivery address and chosen delivery service. Check whether VAT is included and add any delivery charges or unavoidable fees. If delivery is not known until checkout, keep the comparison provisional.

Keep a voucher-dependent total separate from the ordinary price. Check the minimum spend, eligible product, account restrictions and whether the code can be combined with other offers. Do not deduct possible cashback or a future rebate from the amount due today: record it separately with its conditions.

For a bundle, compare the whole basket. Extra items have value only if you need them. If an offer requires a paid membership, include that cost unless you already have it for another reason.

3. Check the seller and the item’s condition

Record who sells the item, not just the name of the website. On a marketplace, the seller and the company dispatching it may be different. Read the listing’s seller information and establish where to direct an order problem.

Keep new, used, refurbished and open-box offers in separate comparisons. Read the description of missing accessories, packaging and cosmetic condition. For imported stock, ask about the supplied UK mains lead and the manufacturer’s warranty coverage for that exact item and region.

Before paying, find the seller’s delivery estimate, cancellation and returns information, return address and any stated return costs. Check the specific warranty terms separately. This is a checklist of information to obtain, not a promise about a particular seller’s service or warranty.

4. Read the offer conditions

A displayed price does not establish that an item is available for immediate dispatch. Distinguish in-stock purchases from pre-orders, back orders, collection-only listings and products sold by a third party.

• Does the delivery estimate apply to your postcode?
• Is the advertised price limited to a particular colour, capacity or product variant?
• Does a discount require an account, a code, a trade-in or a minimum basket value?
• Does the offer have an end date or a quantity restriction stated by the seller?
• Does the final basket still show the same product, seller and total?

If the conditions are unclear, avoid treating the headline price as a confirmed offer. Save the product URL and the time of your check so you know what you compared.

5. Separate a lower price from a useful purchase

Compare the current delivered prices of identical products first. A crossed-out price or recommended retail price is not, by itself, evidence of what other retailers charge today. A historical-low claim needs a reliable record for the same item and a defined period.

Then consider the cost of making the part usable in your build. A cheaper component can require a different motherboard, cooler or power supply. Use our component compatibility checklist before committing to an upgrade.

Published specifications help establish features and fit. They do not establish real-world gaming performance, noise or reliability. If performance matters to your decision, look for measurements that name the exact product, workload and test setup; do not transfer a result from a related model without evidence.

6. Keep a short comparison record

For each offer, write down the following in a note or spreadsheet. Leave unknown fields marked as unknown rather than filling in assumptions.

1. Manufacturer and complete model or part number.
2. Retailer URL, actual seller and item condition.
3. Item price in GBP, VAT status and delivery cost for your postcode.
4. Discount code and eligibility conditions, if relevant.
5. Availability wording, delivery estimate and key return or warranty terms.
6. Date, time and time zone checked.

Revisit the retailer just before ordering. If the model, seller or total changes, redo the comparison. Choosing not to buy is a reasonable outcome when an important detail is missing.