M4 Mac mini's efficiency

Original Article ↗ Hacker News Discussion ↗

Performance & Efficiency

  • Many commenters report the M4 Mac mini feels “incredibly fast” and responsive, even for heavy workloads like 6K RAW or 8K video in Resolve and Premiere, often outperforming older Intel i5 laptops by 4–5x in renders.
  • Idle and light‑load power draw around 3–5 W is repeatedly highlighted; people compare this favorably to Intel mini‑PCs and even Raspberry Pi‑class devices.
  • Some note Apple’s efficiency is helped by unified memory, high bandwidth, and aggressive compression/caching, making 16 GB feel more capable than on typical x86 systems.

RAM, Storage & Pricing

  • Base config (16 GB / 256 GB) is praised as a strong value for light–medium workloads, but many see it as limiting for long‑term or heavy professional use.
  • RAM upgrades are widely criticized as extremely overpriced vs PC DDR5; 64 GB+ needs push people back to PCs.
  • Internal SSD capacity is also seen as overpriced; several suggest external Thunderbolt SSDs or NAS to compensate.

Home Server & OS Choices

  • Some run Mac minis as home servers (Docker, CF Tunnel, Tailscale, NAS), but others argue macOS is explicitly not a server OS and lacks things like first‑class container/VM support and Linux‑style tooling.
  • Desire for official Linux support is strong. Asahi Linux is praised but currently only supports M1/M2; M4 support is expected “eventually.”
  • Running Linux in VMs (UTM, Parallels) is common, but GPU acceleration and overhead are concerns for some server or ML workloads.

SSD, Upgradability & Longevity

  • New M4 mini has a removable proprietary NAND module; controller remains on‑SoC.
  • iFixit and others have shown module swaps; some hobbyists even resolder higher‑capacity NAND, but this is not “easy” or consumer‑grade.
  • Debate on SSD wear: some say modern SSDs will outlast the machine; others worry about swap‑heavy 8–16 GB configs on non‑replaceable internal storage.

Power Button on the Bottom

  • This design choice generates a huge sub‑thread:
    • Supporters: you rarely use it; Macs should mostly sleep/wake; bottom placement reduces accidental presses and simplifies the small enclosure.
    • Critics: awkward for racks, constrained desks, people with limited dexterity; seen as “typical Apple” form‑over‑function and hard to justify.
  • Workarounds mentioned: mounting upside down or on the side, 3D‑printed levers, using managed PDUs / remote reboot instead.

Alternatives & Comparisons

  • x86 mini‑PCs (NUC, Beelink, Minisforum) are frequently raised as cheaper and more flexible:
    • They offer user‑replaceable RAM/SSD, Nvidia GPU slots, better Linux support, and similar or higher multi‑core performance.
    • But they’re typically noisier, less power‑efficient, and sometimes sketchier on firmware/security.
  • Several argue that for many users, used x86 boxes at a fraction of the cost are “good enough,” while others say the M4 mini’s perf/W and silence are unmatched at its price.

Developer & Tooling Notes

  • Nix and nix‑darwin on macOS get mixed reviews: workable and useful, but less smooth than NixOS; can eat disk space quickly on 256 GB machines.
  • Docker on macOS always implies a Linux VM; fine for many web apps, but not ideal for GPU‑heavy or latency‑sensitive workloads.
  • macOS is generally regarded as a very pleasant environment for backend/web dev (Node, Java, Python, Go), with good tooling and UX.

Sustainability & Lifecycle

  • Apple’s claims of high recycled content, 100% renewable electricity for manufacturing, and the M4 mini being their first “carbon neutral” Mac are noted positively.
  • Some remain skeptical of lifecycle impact given soldered RAM, proprietary SSD modules, and high upgrade costs that can shorten useful life.