Complete guide to RAM for mini PCs: everything you need to know
Discover everything about RAM for mini PCs: DDR4, DDR5, SO-DIMM, LPDDR, upgradability, and tips to optimize performance.
Example of a Corsair DDR4 SO-DIMM module used in mini PCs.
Table of contents
Types of RAM for mini PCs
Understanding the available options to optimize your system.
DDR4: the current standard
DDR4 currently dominates the mini PC market. Launched in 2014, it offers an excellent balance between performance and power consumption.
Common frequencies range from 2400 MHz to 3200 MHz, with high-end models reaching 3600 MHz. DDR4 consumes around 1.2V, making it ideal for mini PCs where thermal management is critical.
DDR5: the next generation
DDR5 has been equipping high-end mini PCs since 2022-2023. It offers frequencies starting at 4800 MHz and can reach 8000 MHz or higher.
Its advantages include doubled bandwidth compared to DDR4, better power efficiency (1.1V), and module capacities up to 64 GB. However, it remains more expensive and requires compatible processors and chipsets.
SO-DIMM vs LPDDR
Mini PCs primarily use two physical formats:
- SO-DIMM (Small Outline Dual In-line Memory Module): These compact modules are the most common in mini PCs. Measuring about 67.6 mm in length, they are typically upgradable, allowing users to replace or add RAM after purchase.
- LPDDR (Low Power DDR): This memory is soldered directly onto the motherboard. It offers reduced power consumption and optimized performance but cannot be upgraded. LPDDR4X and LPDDR5 are common in ultra-compact mini PCs and embedded solutions.
Example of a Corsair DDR4 SO-DIMM module used in mini PCs.
Recommended RAM modules for mini PCs
Top RAM options for upgrading or configuring your mini PC.
| RAM module | Type | Capacity | Frequency | Image | Purchase link |
|---|---|---|---|---|---|
| Corsair DDR4 | DDR4 SO-DIMM | 32 GB (2×16 GB) | 3200 MHz | | Buy on Amazon |
| Crucial DDR4 | DDR4 SO-DIMM | 16 GB (2×8 GB) | 3200 MHz |  | Buy on Amazon |
| Corsair DDR5 | DDR5 SO-DIMM | 32 GB (2×16 GB) | 5600 MHz |  | Buy on Amazon |
| Crucial DDR5 | DDR5 SO-DIMM | 32 GB (2×16 GB) | 5600 MHz |  | Buy on Amazon |
Is RAM upgradable in mini PCs?
A key question to ask before purchasing.
This is the key question to consider before buying. The answer varies significantly by model.
Mini PCs with upgradable RAM
Brands like Intel NUC, Minisforum, Beelink, or ASUS typically offer 1 to 2 SO-DIMM slots that are accessible.
Upgrading is relatively straightforward: remove the bottom cover (often with 4 screws), release the old RAM by spreading the retaining clips, and insert new modules at a 45-degree angle until they click into place.
Key considerations:
- Check the maximum capacity supported by the chipset (often 32 GB or 64 GB).
- Ensure compatibility with the maximum supported frequency.
- Use identical modules (same brand, frequency, timings) for optimal dual-channel performance.
- Refer to the manufacturer’s QVL (Qualified Vendor List) if available.
Mini PCs with soldered RAM
Ultra-compact models, some Mac Mini units, or entry-level office mini PCs often use soldered RAM.
This configuration reduces size and improves thermal reliability but makes upgrades impossible. Choose a configuration with sufficient RAM for future needs at the time of purchase.
How much RAM do you need?
Choosing the right capacity for your needs.
8 GB: the bare minimum
Suitable for light office tasks (word processing, web browsing with few tabs, emails).
Note that Windows 11 alone consumes 3-4 GB at idle, making this configuration limiting for multitasking.
16 GB: the sweet spot
Recommended for intensive web browsing, full office suites, basic photo editing, multimedia streaming, light to moderate gaming, and daily multitasking.
32 GB: for demanding users
Ideal for 1080p/4K video editing, software development with virtual machines, light 3D modeling, gaming with streaming, and handling large databases.
64 GB and beyond: workstation
Reserved for professionals needing intensive 4K/8K video editing, complex 3D rendering, scientific simulations, development servers, or heavy virtualization.
Current technologies and performance
Understanding the technologies that boost performance.
Dual-channel: essential
Almost all modern mini PCs support dual-channel, theoretically doubling bandwidth.
To benefit, install two identical modules in the appropriate slots (often color-coded). Performance gains can reach 20-30% in applications like gaming and graphics tasks.
Timings and latency
Timings (CL, tRCD, tRP, tRAS) represent RAM latency. A CAS Latency (CL) of 16 for DDR4-3200 offers better latency than CL22.
The difference is modest in daily use, but gamers and content creators may notice marginal gains.
XMP/EXPO: simplified overclocking
XMP (Intel) or EXPO (AMD) profiles allow reaching the manufacturer’s rated frequencies.
Without BIOS activation, a DDR4-3200 module may run at 2400 or 2666 MHz. Ensure your mini PC supports these profiles and enable them to fully utilize your RAM.
Emerging technologies and the future
What’s next for mini PCs in the coming years.
DDR5: gradual adoption
DDR5 will continue to gain traction in 2025-2026, with prices gradually dropping.
New platforms like Intel (Core Ultra) and AMD (Ryzen 8000 and beyond) are adopting it systematically. By late 2025, DDR5 is expected to become the standard for mid-range and high-end mini PCs.
LPDDR5X: maximum efficiency
LPDDR5X pushes efficiency boundaries with speeds up to 8533 MT/s.
It will equip next-generation ultra-compact mini PCs, especially those with high-performance mobile processors. Its main drawback is being soldered, but it’s a necessary trade-off for fanless or ultra-portable devices.
HBM and exotic technologies
HBM (High Bandwidth Memory) is currently reserved for GPUs and high-performance servers.
However, research is ongoing to integrate small amounts of HBM into CPU packages as ultra-fast cache, potentially appearing in premium mini PCs by 2026-2027.
CAMM2: the future format
The CAMM2 (Compression Attached Memory Module) standard may replace SO-DIMM in the coming years.
More compact, faster, and efficient, it’s already used in some high-end laptops and could become prevalent in premium mini PCs.
Buying tips and mistakes to avoid
How to choose and optimize your RAM.
Before buying a mini PC
- Check the RAM configuration: soldered or upgradable? How many slots? Occupied or free?
- Anticipate your needs: if RAM is soldered, overprovision at purchase.
- Read reviews: some manufacturers artificially limit supported frequencies.
- Budget for upgrades: if upgradable, you can buy with less RAM and upgrade later.
For upgrading RAM
- Prioritize compatibility: type (DDR4/DDR5), format (SO-DIMM), maximum frequency.
- Matched kits: prefer kits sold in pairs for guaranteed compatibility.
- Reputable brands: Crucial, Kingston, Corsair, G.Skill offer reliable warranties.
- Avoid no-name RAM: savings aren’t worth potential instability.
Common mistakes
- Buying RAM too fast for the memory controller (it will run slower).
- Mixing DDR4 and DDR5 (physically and electrically incompatible).
- Ignoring power consumption in fanless mini PCs.
- Failing to enable XMP/EXPO in the BIOS after installation.
Example of upgrading a Crucial DDR4 SO-DIMM in a mini PC.
Conclusion
Choosing the ideal RAM for your mini PC.
RAM for mini PCs requires careful consideration due to size and thermal constraints.
In 2025, DDR4 remains an excellent choice for most uses, offering an optimal performance-to-price ratio. DDR5 is gaining ground for high-end configurations and those looking to future-proof their investment.
Upgradability is a critical factor: if budget allows, prioritize a mini PC with accessible SO-DIMM slots. This provides flexibility to adapt to evolving needs without replacing the entire system.
Finally, remember that RAM is just one part of the performance chain. A balanced mini PC with a good processor, a fast NVMe SSD, and 16 GB of RAM will outperform an unbalanced setup with 32 GB of RAM but an outdated processor or mechanical hard drive.