Mac mini M6 vs M4 (2026): Should You Upgrade, or Buy the Cheaper One?

Quick verdict: Buy the discounted M4 if you browse, write, and code. Buy the M6 if you run local AI models, edit video, or want a Mac that stays current longer. Buy the M5 Pro only if you need Thunderbolt 5 or more than 32GB of memory.

Quick picks: Price ladder · Performance · Ports · Memory and storage · Displays · Who should buy which

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The 2026 Mac mini was announced on August 25 and ships September 22. It looks identical to the 2024 model, which is still on sale. That creates a real decision: pay $899 for the new M6, or take the discounted M4 that launched at $599. We have not tested the M6 yet, so this is a pre-order comparison built on Apple’s published specs and what is documented about the M4 after two years on the market.

The Price Ladder

The Apple Mac mini M4 launched in late 2024 at $599 with 16GB of memory and a 256GB SSD. The M4 Pro started at $1,399. Retailers are still selling both new, and with the M6 announced the base model is being discounted. How much varies by store and week, so check the current price rather than assuming.

The Apple Mac mini M6 starts at $899 for 16GB and 256GB. That is $300 more than the M4’s launch price, and the gap to a discounted M4 is wider. The ladder from there: $1,099 for 16GB and 512GB, $1,299 for 24GB and 512GB, and $1,699 for the M5 Pro with 24GB and 512GB.

So the base price rose by $300 for the same memory and storage. Whether that is worth it depends entirely on what the chip does for your work, which is the next section.

Performance: Apple’s Claims

Everything here is Apple’s claim. No independent benchmarks exist yet because the machine has not shipped.

The M6 has a 12-core CPU, a 12-core GPU, and a dual Neural Engine made of two 16-core engines, with 170GB/s of memory bandwidth. Apple says it is up to 40% faster on CPU, up to 2x on graphics, up to 4x on AI workloads, and up to 2x on storage speed. Those comparisons are against M5, not M4. The M4 is a generation older than M5, so the M6’s lead over the M4 should be larger than those numbers, but we will not invent a figure.

The M5 Pro moves to a 15-core CPU and a 16-core GPU. Apple positions it for video, 3D, and multi-display work.

What matters for a buying decision is where those gains show up. For a web browser, Office, Xcode on a small project, or Lightroom, the M4 is not the bottleneck and most people will not notice the difference. The “up to 4x AI” claim is the one that changes the answer for a specific group: people running local language models, image generation, or on-device transcription. The dual Neural Engine and the wider memory bandwidth are aimed at exactly that. Video editors get the GPU gain. Everyone else gets a faster machine they rarely push.

Ports: Identical Layout, Different Thunderbolt

Both models use the same 5 by 5 inch, two-inch-tall enclosure. The front has two USB-C ports. The rear has three Thunderbolt ports, HDMI, Ethernet, a 3.5mm jack, and the power inlet. Every stand, VESA mount, and hub built for the M4 should fit the 2026 model.

The Thunderbolt detail is the same on both generations: the base chip gets Thunderbolt 4 at 40Gb/s and the Pro chip gets Thunderbolt 5. On the 2024 model that means M4 has TB4 and M4 Pro has TB5. On the 2026 model, M6 has TB4 and M5 Pro has TB5 at 120Gb/s. If you are choosing between a base M4 and a base M6, you are choosing between two Thunderbolt 4 machines. A Thunderbolt 5 dock does nothing extra on either.

The 2026 spec sheet lists HDMI 2.1 and 2.5Gb Ethernet on the M6, plus Wi-Fi 7, Bluetooth 6, and Thread on Apple’s N1 chip. The 2024 model lists Gigabit Ethernet standard with a 10Gb option. If your home network is 2.5Gb, the M6 gets you there without a dongle. Front USB-C on the M6 is rated 10Gb/s.

Memory and Storage Ceilings

The base M4 shipped with 16GB and could be configured higher at purchase. The M6 ships with 16GB or 24GB and configures up to 32GB and 2TB. The M5 Pro goes to 64GB and 8TB.

Memory matters more than the chip for local AI. A model that fits in 24GB or 32GB runs; one that does not, does not, regardless of how fast the Neural Engine is. If you plan to run larger models, the M6 at 24GB or 32GB is the floor, and the M5 Pro at 64GB is the ceiling short of a Mac Studio.

Storage is the same trap on both. Neither drive is user-upgradeable, and 256GB fills quickly once macOS, a few apps, and a photo library land on it. Apple charges a lot for internal upgrades, so many owners pair the 256GB model with an external SSD or a stand with an NVMe slot. Apple claims up to 2x storage speed on the M6, which is a nice bonus but not a reason to pick it on its own.

Displays

Both generations list up to three displays. The 2026 model supports 6K at 60Hz. The base M4 was also able to drive high-resolution displays, with the M4 Pro handling more demanding combinations over Thunderbolt 5. Exact combinations depend on resolution and refresh rate, so check Apple’s tech specs for the configuration you are buying.

In practice, a 5K Studio Display or a 27-inch 4K panel works on either machine over Thunderbolt 4. The 2026 Studio Display uses Thunderbolt 5 ports, but Thunderbolt 5 is backward compatible, so it connects to an M4 or M6 without issue. Where the newer machine pulls ahead is HDMI 2.1, which matters if you connect a high-refresh 4K or 5K monitor over HDMI rather than Thunderbolt. Whether macOS drives a given monitor at its maximum refresh rate over HDMI 2.1 is something to confirm for the specific display.

Who Should Buy Which

Buy the M4 if the machine is for browsing, writing, spreadsheets, video calls, coding, or a student’s desk. The 16GB base model handles all of that today and will for years. The discount makes it the best value desktop Mac on sale. Every accessory in our Mac mini desk setup guide fits it.

Buy the M6 if you run local AI models, edit video or photos for a living, compile large projects, or simply want the machine to stay current for longer. The Neural Engine and bandwidth gains are aimed at AI work, and the 24GB and 32GB configurations give those workloads room. It is also the pick if you need 2.5Gb Ethernet or Wi-Fi 7 without a dongle.

Buy the M5 Pro if you need Thunderbolt 5 for a dock or fast external storage, more than 32GB of memory, or the extra GPU cores for video and 3D. At $1,699 it is a different price tier, and our config guide covers when a Mac Studio at $2,499 makes more sense.

Bottom Line

The M6 is the better computer and the M4 is the better deal, and the difference between them lands on one question: do you run workloads that use the Neural Engine, the GPU, or more than 16GB of memory? If yes, spend the $899 on the M6. If no, buy the discounted M4, put the savings into a monitor, and you will not notice what you gave up.