Mac Studio (M5 Ultra) vs Mac Studio (M3 Ultra, 2025)
Quick look
| Figure | Mac Studio M5 Ultra1 | Mac Studio M3 Ultra2 |
|---|---|---|
| Price | £5,4993Apple UK store | £4,1994launch price |
| Chip | M5 Ultrachip | M3 Ultrachip |
| CPU | 30-coreCPU | 28-coreCPU |
| GPU | 64-coreGPU | 60-coreGPU |
| Memory | 96GBunified memory, base | 96GBunified memory, base |
| Storage | 1TBstorage, base | 1TBstorage, base |
| Released | 22 September 20265ReleasedIn Apple Stores; pre-order from 25 August 2026. Apple says Mac Studio with 512GB of unified memory is coming in late October, and its UK store marks the M5 Ultra 512GB memory option the same way (store re-read 26 October 2026: "512GB memory option for M5 Ultra coming late October"). | 12 March 20256ReleasedIn Apple Stores; pre-order from 5 March 2025. |
| Security updates | Not available7Security updates | Not available7Security updates |
- Price
- The Mac Studio M5 Ultra is £5,499 on Apple’s UK store; the Mac Studio M3 Ultra is £4,199 at launch, per Apple UK Store (archived 26 March 2025).
True to scale
Front faces, from Apple’s published dimensions, drawn to one scale and superposed. Corner rounding is our drawing convention, not a measurement.
Specifications
Each figure is from the source marked by its Mac’s name unless it carries its own small number, which links to where that figure was read.
Body
| Specification | Mac Studio M5 Ultra1 | Mac Studio M3 Ultra2 |
|---|---|---|
| Dimensions | 95 x 197 x 197 mm | 95 x 197 x 197 mm |
| Weight | 3.6 kg | 3.64 kg |
| Colours | Silver | Silver |
| Ports | Four Thunderbolt 5 (USB‑C) ports, two USB 3 (USB‑A) ports (up to 5Gb/s), HDMI 2.1 port, 10Gb Ethernet, 3.5mm headphone jack; on front (M5 Ultra): two Thunderbolt 5 ports (up to 120Gb/s), SDXC card slot (UHS-II) | Four Thunderbolt 5 (USB‑C) ports, two USB 3 (USB‑A) ports (up to 5Gb/s), HDMI 2.1 port, 10Gb Ethernet, 3.5mm headphone jack; on front (M3 Ultra): two Thunderbolt 5 ports (up to 120Gb/s), SDXC card slot (UHS-II) |
| Thunderbolt ports | 6 | 6 |
| Thunderbolt version | Thunderbolt 5 | Thunderbolt 5 |
| USB-A ports | 2 | 2 |
| HDMI | HDMI 2.1 port | HDMI 2.1 port |
| SD card slot | Yes | Yes |
| Headphone jack | Yes | Yes |
Chip and memory
| Specification | Mac Studio M5 Ultra1 | Mac Studio M3 Ultra2 |
|---|---|---|
| Chip | Apple M5 Ultra chip | Apple M3 Ultra chip |
| Apple silicon | Yes | Yes |
| CPU cores | 30 | 28 |
| Super cores | 108 | Not available9 |
| Performance cores | 208 | 20 |
| Efficiency cores | Not available10 | 8 |
| GPU cores | 64 | 60 |
| Neural Engine cores | 32 | 32 |
| Chip options | M5 Ultra with 30-core CPU and 64-core GPU, or M5 Ultra with 36-core CPU and 80-core GPU | M3 Ultra with 28-core CPU and 60-core GPU, or M3 Ultra with 32-core CPU and 80-core GPU |
| Memory (base) | 96GB | 96GB |
| Memory (maximum) | 256GB8 | 256GB11 |
| Memory options | 96GB or 256GB8 | 96GB or 256GB11 |
| Memory bandwidth | 1,200 GB/s | 819 GB/s |
| Storage (base) | 1TB | 1TB |
| Storage (maximum) | 16TB | 16TB |
| Storage options | 1TB, 2TB, 4TB, 8TB or 16TB | 1TB, 2TB, 4TB, 8TB or 16TB |
| Media engine | Hardware-accelerated H.264, HEVC, ProRes and ProRes RAWtwo video decode enginesfour video encode enginesfour ProRes encode and decode enginesAV1 decode | Hardware-accelerated H.264, HEVC, ProRes and ProRes RAWtwo video decode enginesfour video encode enginesfour ProRes encode and decode enginesAV1 decode |
Battery and power
| Specification | Mac Studio M5 Ultra1 | Mac Studio M3 Ultra2 |
|---|---|---|
| Maximum continuous power | 480 W | 480 W |
Connectivity
| Specification | Mac Studio M5 Ultra1 | Mac Studio M3 Ultra2 |
|---|---|---|
| Wi-Fi | Wi‑Fi 7 (802.11be) | Wi‑Fi 6E (802.11ax) |
| Bluetooth | 6 | 5.3 |
| Ethernet | 10Gb Ethernet (Nbase-T Ethernet with support for 1Gb, 2.5Gb, 5Gb and 10Gb Ethernet using RJ‑45 connector) | 10Gb Ethernet (Nbase-T Ethernet with support for 1Gb, 2.5Gb, 5Gb and 10Gb Ethernet using RJ‑45 connector) |
| External displays (base) | 8 | 8 |
Sources
Apple Support (UK) — Mac Studio (M5 Max or M5 Ultra) - Tech Specs ·
↩Apple Support (UK) — Mac Studio (2025) - Tech Specs ·
↩Apple UK store — Mac Studio M5 Ultra, 30-core CPU, 64-core GPU, 96GB, 1TB — From £5,499 ·
↩- ↩
Apple Newsroom (UK) — Apple introduces new Mac Studio with M5 Max and M5 Ultra ·
↩Apple Newsroom (UK) — Apple unveils new Mac Studio, the most powerful Mac ever ·
↩Security updates: no end date published.
↩Apple Support (UK) — Mac Studio (M5 Max or M5 Ultra) - Tech Specs ·
↩Doesn’t apply: this chip has no super cores
↩Apple lists this chip’s cores as 10 super cores, 20 performance cores, with no efficiency cores
↩Apple Support (UK) — Mac Studio (2025) - Tech Specs ·
↩Apple Support (UK) — Mac Studio (M5 Max or M5 Ultra) - Tech Specs ·
↩Apple Support (UK) — Mac Studio (2025) - Tech Specs ·
↩Apple Support (UK) — macOS 27 Golden Gate is compatible with these computers ·
↩Apple Support (UK) — Identify your Mac Studio model ·
↩
Not published by Apple
Mac Studio M5 Ultra. Apple doesn’t publish for this Mac: memory upgradeable by user, storage upgradeable by user, microphones, the macOS it shipped with. Geekbench 7: the Mac chart has no entry for this Mac, so no figures are shown (chart read 10 Oct 2026). Pages checked: Apple Support (UK) — Mac Studio (M5 Max or M5 Ultra) - Tech Specs; Apple Newsroom (UK) — Apple introduces new Mac Studio with M5 Max and M5 Ultra; Apple Support (UK) — Identify your Mac Studio model, read 9 Oct 2026.
Mac Studio M3 Ultra. Apple doesn’t publish for this Mac: memory upgradeable by user, storage upgradeable by user, microphones, the macOS it shipped with. Pages checked: Apple Support (UK) — Mac Studio (2025) - Tech Specs; Apple Newsroom (UK) — Apple unveils new Mac Studio, the most powerful Mac ever; Apple Support (UK) — Identify your Mac Studio model, read 9 Oct 2026.
If you own one of them
Whether to move is a different question from which is better. Each Mac has a page on it: what its successor changes (the newest Mac in its line where Apple sells one, otherwise the Mac this site treats as its replacement, which can be in another line), what it fetches and whether it still gets updates. Should I upgrade my Mac Studio M5 Ultra? · Should I upgrade my Mac Studio M3 Ultra (2025)?
Other comparisons
The pairs a buyer of either Mac would also weigh. Any two Macs in the catalogue can be compared from the chooser.