Mac Studio M3 Ultra: Apple discontinues 256GB RAM variant Apfelpatient

Apple's most powerful desktop Mac is now only available in a single memory configuration. After the 512GB option in March and the 256GB variant in May, only one RAM size remains for the Mac Studio with M3 Ultra in the official Apple Store: 96GB.

The global memory chip crisis is increasingly impacting Apple – and is now clearly visible in the configurator of the top-of-the-line Mac Studio. Three weeks ago, Apple confirmed that it had suspended orders for several RAM configurations of the Mac mini and Mac Studio, with delivery times of one to three months for the remaining available options. Now the situation has worsened: The 256GB variant of the M3 Ultra Mac Studio is no longer configurable in the Apple Store, as observed today by the Twitter account Basic Apple Guy.

From top-of-the-line model to single-storage device

Apple introduced the Mac Studio with M3 Ultra in March 2025, boasting a sensational maximum of 512 GB of Unified Memory – Apple touted it at the time as the largest amount of RAM ever installed in a PC. AI developers were specifically targeting this configuration, as it allows language models with over 600 billion parameters to be executed entirely in RAM.

In March 2026, the 512GB option disappeared from the configurator. While the 256GB version remained formally available for order, it had become practically unavailable with delivery times of four to five months. Today, it too has been removed from the Apple Store. Only one configuration remains: 96GB of RAM, the standard configuration with which the M3 Ultra Mac Studio originally started at €4,799. Those wanting to buy the most powerful desktop Mac now have no other choice.

Why Apple is taking this measure

The underlying cause is the global shortage of DRAM and HBM memory chips. The enormous investments made by large cloud and AI providers in their own data centers are draining the production capacities of memory manufacturers. Apple, as a major customer, is privileged but not immune – especially not with its extremely memory-intensive Pro configurations, which are sold in relatively small quantities anyway.

From Apple's perspective, it makes little economic sense to use scarce memory chips in a niche configuration with three- to five-figure monthly production volumes when the same chips generate significantly more revenue in the MacBook Pro or iPhone Pro. Therefore, the omission is less a design decision than a triage decision within the supply chain.

What this means for buyers

For professional buyers with genuine RAM needs beyond 96 GB, the situation is problematic. Those who currently require 256 GB or more—for example, for local AI models, large video editing projects, or extensive 3D renderings—no longer have an official option within Apple's lineup. The M5 Max MacBook Pro supports a maximum of 128 GB. The Mac Pro with M2 Ultra supports up to 192 GB. The Mac Studio M3 Ultra with 96 GB is therefore both the top of the lineup and the limit of RAM scaling within the Apple ecosystem.

Anyone who needs the full performance of the M3 Ultra essentially has only two options: quickly buy the 96GB version while it's still available, or wait for the successor. However, the latter also comes with a caveat – it was revealed in early March that Apple is unlikely to bring back the 512GB option for the upcoming Mac Studio with the M5 Ultra as long as the memory market remains tight.

What the cancellation reveals about Apple's situation

Apple's removal of the top-of-the-line M3 Ultra Mac Studio's RAM upgrade option from the configurator is a significant signal. Just a year ago, the 512GB configuration was the marketing highlight of the M3 Ultra Mac Studio. Apple was actively positioning the product as a desktop workstation for AI developers and high-end professionals. The current situation reverses this narrative – the same device that was touted as a top-of-the-line storage solution twelve months ago is now relegated to the entry level.

This aligns with the broader message Apple has been communicating for weeks: storage shortages will persist for months, affecting multiple configurations across the Mac and iPad lineup, with no relief expected before the end of 2027. Anyone planning for a high-performance Mac for professional use should start planning around this reality now.

Apple's storage crisis is becoming a recurring issue

Today's cancellation is not an isolated incident, but rather another data point in a series of order stops, canceled configurations, and delivery delays. For the Mac Studio with M3 Ultra, this means: 96 GB of RAM or nothing. For Apple's most ambitious desktop buyers, this is a significant limitation – and a clear indication that even Apple is currently unable to control the supply chain as effectively as its last-generation marketing might suggest. (Image: Shutterstock / Cristi Dangeorge)