Memory Modules Price Comparison
Compare 8,009 memory modules from Kingston, Corsair, G.Skill and more — find the best price on DDR4 and DDR5 RAM for every build and budget.
Memory Modules price comparison UK
RAM is one of those components where the gap between a good choice and a poor one is measured in real, daily frustration — sluggish tab switching, stuttering in games, or a workstation that grinds to a halt under a heavy Premiere Pro timeline. With 8,009 modules listed here, ranging from 27 £ for basic laptop sticks to 463 £ for high-capacity server configurations, the market is vast enough to confuse even experienced builders.
The most significant split right now is between DDR4 and DDR5. DDR4 at 3200 MHz remains the dominant standard for existing platforms — and the pricing reflects that maturity. Kingston's ValueRAM and Crucial's standard modules sit comfortably in the accessible end of the range, while G.Skill and Corsair command a modest premium for higher-binned kits with tighter timings. DDR5, meanwhile, has come down considerably from its launch prices, and for anyone building on Intel's 12th-generation or later, or AMD's AM5 platform, it's now the sensible default. Our data shows DDR5 modules clustering around 146 £ for 16–32 GB configurations — no longer the luxury it once was.
One thing worth flagging: Origin Storage and Hypertec dominate the product count here, largely because they supply enterprise and server-grade memory — RDIMM and ECC modules intended for rack-mounted systems, not gaming rigs. If you're building a consumer desktop or upgrading a laptop, you can largely ignore their catalogues and focus on Kingston, Corsair, G.Skill, and Crucial. That said, if you're running a small business server or a workstation that demands ECC, those brands are worth a look alongside processors and motherboards that actually support error-correcting memory.
For gaming builds, the sweet spot sits between 115 £ and 146 £: a 2×8 GB or 2×16 GB DDR4 kit in dual-channel configuration will outperform a single higher-capacity stick at the same price, every time. Dual-channel isn't marketing — it genuinely doubles available bandwidth. RGB variants from Corsair's Vengeance and Kingston's FURY Beast lines add roughly 10–20% to the cost for purely aesthetic benefit; worth it if your case has a window, irrelevant otherwise.
Content creators and developers should be thinking 32 GB minimum in 2026, with 64 GB increasingly justifiable for virtualisation or large dataset work. The jump to DDR5 at 5600 MT/s or above makes a tangible difference in memory-bandwidth-sensitive workloads — and pairing the right kit with a compatible graphics card ensures no bottleneck elsewhere in the system.
How to Choose the Right Memory Module
Picking RAM looks deceptively simple — capacity, speed, done. In practice, a mismatched kit can run at half its rated speed, refuse to boot, or cause random crashes for months before anyone suspects the memory. Here's what actually matters, in order of importance.
DDR Generation: DDR4 or DDR5?
This is the first decision, and it's non-negotiable — your motherboard dictates which generation you can use. DDR4 and DDR5 slots are physically incompatible. If you're on an Intel 12th-gen or later (LGA1700/1851) or AMD AM5 platform, go DDR5: the bandwidth gains are real, power consumption is lower (1.1V vs 1.35V), and prices have normalised. If you're on an older Intel or AMD AM4 board, DDR4 at 3200 MHz is the sweet spot — faster kits exist but the returns diminish quickly. Don't pay a DDR5 premium for a platform that can't use it.
Capacity: How Much Do You Actually Need?
16 GB is the realistic minimum for a modern Windows 11 system used for everyday tasks and gaming. 8 GB will feel constrained within months. 32 GB is the right call for content creators, developers, or anyone running virtual machines — and it's no longer expensive. 64 GB and above is territory for professional workstations, 3D rendering, or running multiple VMs simultaneously. One important nuance: two 16 GB sticks in dual-channel will outperform a single 32 GB stick at the same total capacity, because dual-channel doubles the available memory bandwidth. Always buy in matched pairs if your motherboard supports it.
Speed and Timings: What the Numbers Mean
For DDR4, 3200 MHz (CL16) is the baseline worth targeting — anything slower is a false economy, anything above 3600 MHz offers diminishing returns for most use cases. For DDR5, 5600 MT/s is the current JEDEC sweet spot; kits pushing 6000–8000 MT/s exist (Corsair Vengeance, G.Skill Trident Z5) but command a significant premium that only makes sense for enthusiast overclocking. CAS latency matters less than raw speed in most workloads, but for gaming, tighter timings (CL14–CL16 on DDR4, CL36–CL38 on DDR5) do reduce frame-time variance. The four-number timing string (e.g., 16-18-18-36) tells the full story — lower is better across the board.
XMP, DOCP, and EXPO: Enabling Rated Speeds
Here's a trap many buyers fall into: memory doesn't automatically run at its advertised speed. Out of the box, most kits boot at JEDEC defaults — often significantly slower than the rated spec. To get what you paid for, you need to enable XMP (on Intel platforms), DOCP (on older AMD boards), or EXPO (on AMD AM5) in the BIOS. It's a single toggle, takes 30 seconds, and makes a measurable difference. If your BIOS doesn't show an XMP/EXPO option, check for a BIOS update — older firmware sometimes lacks the profile. Kits without XMP/EXPO profiles (common on budget enterprise sticks) will simply run at JEDEC speeds regardless.
Form Factor: DIMM, SO-DIMM, or RDIMM?
DIMM (288-pin) is the standard for consumer desktops. SO-DIMM is the compact variant used in laptops and small form-factor systems like NUCs — physically smaller and not interchangeable with DIMM. RDIMM (registered) and LRDIMM are server formats that require a registered buffer on the module; they will not work in consumer motherboards even if the slot looks similar. If you're upgrading a laptop, double-check whether it has user-accessible SO-DIMM slots at all — many modern thin-and-lights have memory soldered directly to the board.
Checking the QVL Before You Buy
The Qualified Vendor List (QVL) is your safety net. Every motherboard manufacturer publishes a list of tested, verified memory kits for each board — find it on the support page of your specific motherboard model. Running a kit not on the QVL doesn't guarantee failure, but it does mean you're on your own if stability issues arise. This matters most with high-speed DDR5 kits above 6000 MT/s, where compatibility is genuinely trickier. Kingston and Crucial both offer compatibility checkers on their own sites as a secondary verification tool.
- Budget picks (From 27 £ to 115 £) : Basic DDR4 SO-DIMM and single-stick DIMM modules for laptop upgrades or budget desktop builds. CoreParts and Kingston ValueRAM dominate here. Expect JEDEC speeds, no XMP profiles, and minimal heatspreaders. Perfectly adequate for office machines and older systems — don't expect gaming performance.
- The sweet spot (From 115 £ to 146 £) : Where most sensible builds land. Dual-channel DDR4 3200 MHz kits from Kingston FURY, Corsair Vengeance, and Patriot Viper Steel. You get XMP profiles, decent heatspreaders, and enough capacity (16–32 GB) for gaming and general productivity. This is the range we'd recommend to most buyers.
- DDR5 territory (From 146 £ to 231 £) : DDR5 modules at 5600–6000 MT/s, 32–48 GB configurations, and premium DDR4 kits with RGB. Kingston FURY Impact DDR5, Corsair Dominator, and G.Skill Ripjaws S5 live here. Right for new platform builds, content creators, and anyone who wants headroom for the next few years.
- Enthusiast and enterprise (Over 231 £) : High-capacity DDR5 kits (64 GB+), extreme-speed modules at 7200–8000 MT/s, and enterprise ECC/RDIMM configurations from Hypertec and HPE. The Kingston FURY Beast 64 GB DDR5 6000 MT/s kit sits here. Justified for professional workstations, servers, and serious overclocking — overkill for everything else.
Top products
- Kingston Technology KCP432SS8/16 memory module 16 GB 1 x 16 GB DDR4 3200 MHz (Kingston Technology) : A solid, no-frills SO-DIMM for laptop upgrades — reliable Kingston quality at a fair price, but it's a single stick, so you won't benefit from dual-channel. Fine for replacing a failed module; less ideal for a fresh build.
- Kingston Technology FURY Beast 16GB 3200MT/s DDR4 CL16 DIMM (Kit of 2) RGB (Kingston Technology) : The most popular kit in this catalogue for good reason — dual-channel, XMP 2.0 support, and RGB that actually looks good. The CL16 timing is standard rather than exceptional, but for gaming at this price point it's hard to fault.
- Patriot Memory Viper Steel PVS416G320C6K memory module 16 GB 2 x 8 GB DDR4 3200 MHz (Patriot Memory) : The outsider pick — Patriot's Viper Steel is consistently underrated. A 2×8 GB dual-channel DDR4 3200 kit with a clean aluminium heatspreader, no RGB tax, and a lower price than comparable Corsair or G.Skill kits. Excellent value if you don't need the lights.
- Corsair Vengeance CMKC48GX5M2X8000C38 memory module 48 GB 2 x 24 GB DDR5 8000 MHz (Corsair) : An extreme DDR5 kit for serious enthusiasts — 8000 MT/s is genuinely impressive and the 48 GB total capacity is a smart configuration for DDR5 platforms. That said, you'll need a top-tier Z790 or X670E board and a BIOS that cooperates. Overkill for most; compelling for the right build.
- Kingston Technology FURY Beast 32GB 3200MT/s DDR4 CL16 DIMM (Kit of 2) RGB (Kingston Technology) : The 32 GB version of Kingston's best-selling FURY Beast kit — the right amount of RAM for content creators and developers on DDR4 platforms. RGB looks sharp, XMP is straightforward to enable, and Kingston's warranty is reassuring. Not the cheapest 32 GB option, but one of the most reliable.
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Frequently Asked Questions
What is the difference between DDR4 and DDR5 memory?
DDR5 is faster, more power-efficient, and designed for newer platforms — but it requires a compatible motherboard and is not interchangeable with DDR4. DDR5 operates at 4800–8000+ MT/s versus DDR4's 2400–3600 MHz, and runs at a lower voltage (1.1V vs 1.2–1.35V). For Intel 12th-gen and above or AMD AM5 builds, DDR5 is the right choice. For AM4 or older Intel platforms, DDR4 is your only option and still performs excellently for gaming and everyday use.
How much RAM do I need for gaming in 2026?
16 GB in a dual-channel configuration (2×8 GB) is the minimum for smooth gaming today, but 32 GB is increasingly the sensible target. Several recent titles — and Windows 11 itself — consume more background memory than they did two years ago. A 2×16 GB DDR4 3200 MHz or DDR5 5600 MT/s kit covers you for the foreseeable future without overspending. 8 GB is genuinely insufficient for modern gaming; you'll notice stuttering and long load times.
Does enabling XMP or EXPO actually make a difference?
Yes — and skipping it means you're almost certainly running your memory slower than you paid for. Without XMP (Intel) or EXPO (AMD AM5) enabled in the BIOS, most kits default to JEDEC speeds, which can be significantly below the advertised rating. Enabling the profile takes under a minute and is the single easiest performance upgrade you can make after installing new RAM. If your system is unstable after enabling XMP, try a slightly lower profile or check for a BIOS update.
Is it worth paying extra for RGB memory?
Only if aesthetics genuinely matter to you — RGB adds nothing to performance. Corsair's iCUE-compatible sticks and Kingston FURY Beast RGB modules typically cost 10–20% more than their non-RGB equivalents for identical specifications. If your case has a tempered glass side panel and you care about the look, fair enough. If your case is opaque or sits under a desk, save the money and put it towards more capacity or faster speeds.
Can I mix memory modules from different brands or speeds?
Technically possible, but we'd advise against it. Mixing brands, speeds, or capacities can cause the system to boot at the slower module's speed, disable dual-channel mode, or — in the worst case — cause instability that's extremely difficult to diagnose. If you're upgrading, the cleanest approach is to replace both sticks with a matched dual-channel kit rather than adding a single stick from a different batch. Matched kits are tested together by the manufacturer and listed on motherboard QVLs as a pair.
What does ECC memory do, and do I need it?
ECC (Error-Correcting Code) memory automatically detects and corrects single-bit memory errors, preventing data corruption and system crashes. It's essential for servers, financial workstations, and any application where data integrity is critical. However, ECC requires specific motherboard and CPU support — consumer Intel and most AMD Ryzen platforms do not support it. AMD's Threadripper and EPYC lines do, as do Xeon-based workstation boards. For a gaming PC or home workstation, standard non-ECC memory is perfectly appropriate.
Are cheap no-name memory modules worth the risk?
Generally, no — and this is one component where brand reputation genuinely correlates with reliability. Established manufacturers like Kingston, Crucial, Corsair, and G.Skill perform rigorous binning and compatibility testing, and back their products with lifetime or 10-year warranties. Budget modules from unknown brands often use lower-grade DRAM chips, skip XMP validation, and offer little recourse if something goes wrong. The price difference between a reputable kit and a no-name alternative is rarely large enough to justify the risk, particularly given that faulty RAM can cause data loss and is notoriously difficult to diagnose.