1.5 TB of VRAM on Mac Studio – RDMA over Thunderbolt 5

periodjet 12/19/2025|

> That's definitely fast enough for vibe coding, if that's your thing, but it's not mine.

Why even…?

dogcowmoof 12/19/2025||

Wonder if RDMA support can translate to things like SMB direct or other RDMA adjacent things

krbaccord94f 12/19/2025||

rdma_ctl enable in 1tn parameter.

TL1 mount, where 1.5 TB allocate mac-mini server.

cboyardee 12/19/2025||

[dead]

forestmars 12/18/2025||

[dead]

Rakshath_1 12/19/2025||

[flagged]

tomhow 12/19/2025|

Please stop.

gloyoyo 12/19/2025||

Wow. $40k for a friendly chat(bot)...

Hey, at least this post allows us to feel as though we spent the money ourselves.

Bravo!

fortran77 12/19/2025||

On Intel Motherboards, it's easy to find ones that can take 2TB of RAM, for example: https://www.supermicro.com/en/products/motherboard/x14sbw-tf

This seems suboptimal.

ErneX 12/19/2025||

2TB of system memory, not unified memory like Apple Silicon Macs.

TheTxT 12/19/2025||

The gpu can’t access that directly however. On Apple Silicon it can all be used as vram.