LPDDR4 vs LPDDR5 RAM: What to Choose?

What LPDDR4 and LPDDR5 mean on a listing

LPDDR stands for low power double data rate. It is the memory standard used in thin laptops, where keeping power draw low matters as much as moving data. LPDDR4 and LPDDR5 are two generations of that standard. The number sits next to the capacity in a laptop title: "16 GB LPDDR5", "32 GB LPDDR4", or on some lines "LPDDR5 5500 MHz".

LPDDR5 is the newer generation. Microsoft states 16GB of DDR5 or LPDDR5 as the minimum RAM for a Copilot+ PC on its Windows 11 specifications page, a sign that the newer standard is the current one on new Windows machines. A listing that states LPDDR5 tells you the maker fitted the current standard; a listing that states LPDDR4 uses the previous generation.

Bandwidth and what it does for a timeline

Bandwidth is the amount of data the memory can move per second. An editing timeline is a data-heavy workload: several video layers, stills, titles and audio read from storage into memory, and the processor and graphics chip read from memory to build each frame. Higher memory bandwidth helps those parts of the system keep up with the footage you place on the timeline.

Apple publishes bandwidth as a number on its MacBook Pro spec page. The M5 chip is stated at 153GB/s of memory bandwidth, the M5 Pro at 307GB/s, and the M5 Max at 460GB/s or 614GB/s depending on the configuration. MacBooks describe memory as unified memory rather than LPDDR4 or LPDDR5, so on an Apple listing you read "32GB unified memory" and check the chip for the bandwidth figure.

On a Windows listing the maker may state the data rate directly, as ASUS does on one thin-and-light line: "up to 16 GB LPDDR5 5500 MHz". The 5500 MHz is the data rate as the maker states it. Read it as a stated detail, not as a promise about how an editing program runs.

Power efficiency: what it means in words

Power efficiency describes how much electrical power the memory needs to do its work. The LP in LPDDR exists for this reason: both LPDDR4 and LPDDR5 are designed to run at lower voltage than desktop DDR memory, which keeps thin laptops drawing less from the battery for a given workload.

The newer generation is designed to improve on that: a higher data rate for a similar or lower power draw. For an editor the effect is indirect. Long editing sessions usually happen with the laptop plugged in, so the generation will not decide whether a project gets finished. It matters more in a thin-and-light machine you carry between shoots, where every fraction of power draw affects how long the battery keeps the screen and the program alive. The site makes no runtime claim; compare capacity and workload instead, as lightweight editing laptops shows.

Performance: where the generation sits in the decision

The memory generation is a small part of an editing laptop's performance story. The amount of memory, how it is wired to the processor, and whether the graphics chip has its own memory all contribute more to how comfortably a 4K timeline plays. A listing with 64GB of LPDDR4 is usually a stronger editing base than a listing with 16GB of LPDDR5.

What matters next is whether the memory runs in dual channel. Two modules working together move more data than one module of the same capacity. Dual-channel memory explains the difference for an editing buyer.

The practical route to a decision is to match the memory amount to the project size. This guide on RAM for video editing sets the tiers: 16GB for small 1080p work, 32GB as the common starting point for 4K, 64GB for long timelines with effects. The LPDDR4 or LPDDR5 generation comes after those decisions.

Reading the memory line on a listing

The memory line on a laptop title reads from left to right: capacity, generation, then speed when the maker states it. A short checklist helps when two listings sit side by side:

• Capacity first: 16GB, 32GB, 64GB decide how much timeline and how many open programs fit at once.
• Generation second: LPDDR4 or LPDDR5 tells you which standard the maker fitted.
• Speed third: a figure in MHz is the data rate as stated by the maker.
• If the listing omits the generation, treat it as unstated rather than a concern.
• Check whether the RAM is soldered: soldered RAM versus SODIMM explains why upgradeability changes the decision.

What to pick for your situation

Questions

Is LPDDR5 better than LPDDR4 for video editing?

LPDDR5 is the newer low-power memory generation, designed for a higher data rate and lower power draw than LPDDR4. That is a point in its favor on a listing, but the memory capacity and the graphics chip change an editing laptop more than the generation does. Buy on capacity first; see 64GB RAM laptops for long 4K projects.

Does an editing laptop need LPDDR5?

No. The generation is a stated detail, not a requirement. Editing programs publish their own system requirements; check the program maker's page before buying. The amount of RAM and the separate graphics memory do the heavy lifting for a timeline, so compare editing laptops on those figures first.

Why do some listings state "LPDDR5 5500 MHz" and others just "LPDDR5"?

The MHz figure is the data rate as the maker states it. Some makers put the rate on the title, some leave it off. It reads the same way as any stated detail: it describes the memory standard, not an editing result.

Do MacBooks use LPDDR4 or LPDDR5?

Apple describes MacBook memory as unified memory, not by a generation name. The MacBook Pro spec page states the memory capacity and the memory bandwidth for each M5 chip, and that is the number to compare there. The MacBook editing guide explains the configurable options.

What matters more: LPDDR4 versus LPDDR5, or 16GB versus 32GB?

The capacity. 32GB of LPDDR4 holds a longer 4K timeline than 16GB of LPDDR5. Treat the generation as a tie-breaker when capacity sits at the same level, as the RAM buying guide explains.