Highlights

• Predictive Code Completion uses machine learning to suggest code.
• Requires a minimum of 16GB unified memory to function.
• Base model Macs with 8GB RAM are incompatible with the feature.
• Works offline with on-device data storage for privacy benefits.

Apple has added a new feature to Xcode 16, its development environment for Apple platforms, called Predictive Code Completion.

The feature will use machine learning to predict and suggest what code one is trying to write as one writes.

However, it will not function with less than 16GB of unified memory.

8GB RAM Not Good Enough

This represents an issue that makes the base model Macs not that good.

But going a step further, many current Apple computers—the Mac Mini, MacBook Air, iMac, and MacBook Pro—have all been offered starting with 8GB of RAM recently, so none of those computers will be compatible with that feature.

It also has the benefit of working offline with on-device data storage, enjoying some privacy benefits.

But the modeling techniques for Predictive Code Completion are supposed to save developers time by actually writing code for them.

Less versatile—narrowly focused—than AI chatbots such as ChatGPT or Google Gemini, it’s part of the Xcode environment.

A First For Apple

This is the first such limitation that Apple has set, making a hard requirement that cuts their base model Macs.

Of course, it’s worth noting that Xcode 16 itself will run on a Mac with less memory; it’s only this Predictive Code Completion feature that requires all that RAM.

When Apple launched 8GB of unified memory with its M1 processors in 2020, this wasn’t much of an issue.

Now months and years later, it makes the new feature look like maybe 8GB’s not enough for some people.

Warning Signs Were There

For some time now, critics have been saying, “You can’t go home with 8GB of RAM. It’s just not enough.”

But most people, who have bought a Mac with default memory, are not going to use Xcode—not to talk about Predictive Code Completion.

However, it could be an omen of things to come.

For general web use, it still feels adequate.

With AI and machine learning workflows cropping up more and more, they do call for more system memory and processing power.

A natural question from this development then is: Should Apple really bump its minimum RAM to at least 16GB in the next generation of Macs?

This becomes a great reminder that opting for a computer with more memory will future-proof your purchase.

The Predictive Code Completion feature is just one of several updates announced at WWDC 2024, which also included the reveal of macOS Sequoia and Apple Intelligence.

FAQs

What is Predictive Code Completion in Xcode 16?

Predictive Code Completion is a new feature in Xcode 16 that uses machine learning to predict and suggest code as you type, aimed at saving developers time.

Why is 16GB of RAM required for Predictive Code Completion?

The machine learning models used for Predictive Code Completion demand significant memory resources, making 16GB of unified memory the minimum requirement for this feature.

Will Xcode 16 run on Macs with less than 16GB of RAM?

Yes, Xcode 16 will run on Macs with less than 16GB of RAM, but the Predictive Code Completion feature will not be available on those machines.

Which current Apple computers are incompatible with Predictive Code Completion?

Macs with 8GB of RAM, such as the base models of the Mac Mini, MacBook Air, iMac, and MacBook Pro, are incompatible with the Predictive Code Completion feature.

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