USB-C Power Delivery: What Wattage and Protocol Do You Need?

What USB-C Power Delivery means on a laptop listing

USB-C Power Delivery (PD) is the protocol that lets a USB-C connection carry power alongside data and video. On a laptop listing, a line that says USB-C PD or Power Delivery usually points to two things: the port can charge the laptop or accept charge over USB-C, and the connection can deliver power at a stated wattage.

For an editor choosing a laptop, the wattage figure is the part to read. It tells you how much power the maker's adapter can supply to the system. The USB-C and Thunderbolt ports on an editing laptop also carry data and display signals, but the PD line is about power.

• Charging over USB-C, which means a compatible USB-C charger can power the laptop
• The adapter wattage the maker specifies for the system
• Fast-charge capability, when the maker states it

Where the wattage appears on a listing

A listing may state the adapter wattage in the power or battery line, or it may state only that the laptop charges over USB-C. Some listings omit the figure entirely. When the figure is absent, the maker's product page is the place to read it; makers publish the power specifications for their models.

Apple publishes these figures directly in its tech specifications. The MacBook Pro specs page lists a 70W USB-C Power Adapter for the M5 model and the M5 Pro with 15-core CPU, and a 96W USB-C Power Adapter for the M5 Pro with 18-core CPU and the M5 Max. The MacBook Air specs page lists a 40W Dynamic Power Adapter with 60W Max. ASUS describes its ProArt line as meeting connectivity needs with the latest high-speed I/O standards including USB-C and Thunderbolt, which is the maker's own description of how those ports are used.

Why an editing laptop draws more power

An editing workload keeps several parts of the laptop busy at once: the display, the processor, and the graphics hardware all draw power while you work on a timeline. A laptop with separate graphics draws more power than one with only built-in graphics, which is one reason editing laptops often ship with larger adapters than lightweight general-use models. The difference between these two graphics setups is explained in integrated vs dedicated graphics.

The adapter wattage is a supply figure, not a speed figure. It describes what the maker specifies the system can draw, and the buyer's job is to match it: use the adapter that the maker states for the model. A lower-wattage source may not deliver enough power while the system is loaded. NVIDIA describes its Max-Q technologies as AI-based system optimizations that manage power between the GPU and CPU, and its Battery Boost feature as finding a balance between power usage and battery discharge. Those are the maker's own words about how an RTX laptop handles power; the wattage figure itself comes from the laptop maker, not from NVIDIA.

Reading Apple's stated power figures

Apple also states the battery capacity in watt-hours for both lines: 72.4-watt-hour for MacBook Pro and 53.8-watt-hour for MacBook Air. A watt-hour is a capacity figure, not a runtime figure. Runtime depends on what the laptop is doing, and this guide does not quote runtime in hours. For choosing a laptop, the capacity and the adapter figure together give you the power picture the maker publishes. The battery capacity in Wh article explains the difference between capacity and runtime.

Apple states fast-charge capability in the same pages. MacBook Pro is fast-charge capable with a 96W or higher USB PD power source, and MacBook Air is fast-charge capable with a 70W or higher USB PD power source. If you read a MacBook listing, these are the figures to match: the adapter that ships with one configuration is not the same for another, so the MacBook editing guide compares configurations on stated details.

USB-C PD versions as words on a title

USB-C PD has version numbers, such as PD 3.0 and 3.1, that describe what the protocol can do. A listing may show a version, a wattage, or both. The version describes how the port negotiates power; the wattage describes the amount the adapter can deliver.

For an editor, the version is background information. The figure that matters for buying is the maker's stated adapter wattage, because that is the figure the maker publishes for the system. When two listings show different PD versions but the same adapter wattage figure, read the wattage first. The same rule applies across Windows and MacBook listings: the protocol name tells you the port supports power delivery, and the maker's stated wattage tells you what the system asks for.

• PD 3.0 and PD 3.1 are version names you may see on a title
• A listing may state the version without the wattage
• The maker's stated wattage is the figure to compare

What to check before you buy

Before you buy, read the listing's power or battery line for an adapter wattage. If the line is absent, open the maker's product page for that model. Comparing two editing laptops on their stated adapter wattage is a fair comparison when both figures come from the makers' pages. For more on reading that line, see power adapter wattage.

External drives and a second monitor do not change the wattage you need from your laptop's adapter, because those devices have their own power sources. What the adapter figure covers is the laptop itself, and the maker's stated figure is the one to keep in mind when you unpack the box and keep its charger.

Windows and MacBook power figures side by side

Windows laptop listings vary. Some state the adapter wattage, some state only that the laptop charges over USB-C, and some omit the line. The same rule applies: read the maker's published figure for the model you are comparing. The Windows editing laptop guide compares listings on the details the makers state, including the power line when it is present.

MacBook listings from Apple publish the power figure in the tech specs, which makes the comparison straightforward. Whichever platform you edit on, the buyer's job is the same: match the adapter that the maker specifies, and check the maker's page when the listing is silent. The fast charging article covers how a higher-wattage source relates to a maker's fast-charge statement.

What to pick for your situation

Questions

Does a higher wattage adapter make editing faster?

No. Wattage is the power supply figure, not a speed figure. The maker states the wattage the system needs, and editing speed is a separate question. This article compares laptops only on the details makers state; it does not rank them on export or render times.

How do you find the wattage on an editing laptop listing?

Read the power or battery line. If the listing omits it, open the maker's product page for that model. Apple publishes the figures in the tech specs for MacBook Pro and MacBook Air: 70W or 96W for MacBook Pro depending on configuration, and a 40W adapter with 60W max for MacBook Air.

Can you charge a MacBook Pro with a lower-wattage USB-C charger?

Apple states the adapter that ships with each configuration, and states that fast-charge is capable with a 96W or higher USB PD power source on MacBook Pro. A lower-wattage source is not the figure the maker publishes for fast-charge on that model. See fast charging for how the site reads a fast-charge statement.

Is the USB-C PD version more important than the wattage?

The version describes how the port negotiates power; the wattage describes the amount the adapter can deliver. For choosing a laptop, read the maker's stated wattage first.

What if a Windows listing does not state the wattage?

Some listings omit the figure. Open the maker's page for that model and read the adapter specification in the power or technical specifications section.

Do external monitors and drives change the wattage you need?

No. External monitors and drives have their own power sources. The adapter wattage on the laptop listing covers the laptop itself, and the maker's stated figure is the one to match.