Cheapest 64 GB DDR4 laptop RAM (SO-DIMM)
64 GB DDR4 laptop RAM is a SO-DIMM memory module — the short, compact form factor made for laptops and small-form-factor desktops. Upgrading or replacing memory gives your device more room for demanding work such as large spreadsheets, virtual machines, and heavy multitasking. Before you buy, check three things: the form factor (SO-DIMM, not full-size DIMM), the interface (DDR4, not DDR3 or DDR5), and compatibility with your exact device. Compare current prices across stores below.
- Lowest new $764.22
- Lowest used or refurbished $400.00
- Lowest per GB $6.25
- Compared 1 product
| $/GB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $6.25 | $400.00 | 2 × 32 GB | Kingston FURY Impact 64GB Kit (2 × 32GB) DDR4-3200 SO-DIMM DDR4-3200 CL20 SO-DIMM | Used | eBay US | View deal |
| $11.94 | $764.22 | 2 × 32 GB | Kingston FURY Impact 64GB Kit (2 × 32GB) DDR4-3200 SO-DIMM DDR4-3200 CL20 SO-DIMM | New | eBay US +2 | View deal |
Fits these devices
- Dell Latitude 5420
- Dell Latitude 5440
- Dell Latitude 5540
- Dell OptiPlex 3080 Micro
- Dell OptiPlex 7000 Micro
- Dell XPS 15 9510
- Framework Laptop 13 (Intel 11th–13th Gen)
- Dell XPS 15 9500
- Dell Latitude 5430 (Intel 12th Gen)
- HP EliteBook 840 G8
- Intel NUC 13 Pro Kit
- Dell Precision 3240 Compact
20 devices in our catalog take this part. Search yours on the home page.
Before you buy
- Count your slots first. Check how many memory slots your device has and how many are already filled. A 64 GB upgrade may be sold as a single module or a matched pair, and what's already installed affects what you can add later.
- Match the speed your device supports. Memory runs at the fastest speed both the module and the device allow. A faster-rated module in a device that supports a lower speed will typically run at that lower speed, so paying extra for the highest rating may bring no benefit.
- Confirm the memory is user-accessible. Some laptops and compact desktops have soldered memory that can't be upgraded, while others leave one or both slots open. Check your device's service manual or memory configuration before ordering.
Questions
Will 64 GB DDR4 SO-DIMM fit my laptop or desktop?
It fits if your device uses SO-DIMM memory, uses DDR4, and supports 64 GB of RAM across the slots available to you. Our catalog lists 20 devices that accept this configuration, including several Dell Latitude, Dell OptiPlex Micro, Dell XPS 15, and HP EliteBook models. If your device isn't listed, check the manufacturer's memory specifications for form factor, type, and maximum supported capacity before buying.
Does RAM speed matter, and which speed should I choose?
DDR4 SO-DIMM modules are commonly rated from 2400 to 3200 MT/s (often listed as MHz). A module runs at the fastest speed supported by both the module and your device, so a higher-rated module in a system that only supports a lower speed will generally run at that lower speed. Match what your device supports to avoid paying for performance you won't see.
How much memory is enough for me?
It depends on your workload. Light use — browsing, documents, and streaming — needs far less memory than running virtual machines, working with large datasets, editing video, or keeping many applications open at once. If your current memory fills up and your device slows or swaps to storage, moving to a larger configuration like 64 GB gives you headroom. If you're unsure, compare what you have now against the demands of the tasks you run regularly.
Is used memory as good as new?
Memory has no moving parts and often remains functional well beyond its original device, so used modules can be a sensible option. The trade-offs are warranty, return policy, and condition. If you buy used, check the seller's return terms, test the modules as soon as they arrive, and prefer matched sets if you're installing more than one. New modules usually include a manufacturer warranty and clearer compatibility information.