Can You Build a 64GB VRAM Multi-GPU AI Rig Using Mobile GPUs?
Gold-Drag9242 · reddit · 2026-08-02
The post explores the potential of mobile GPUs, which are often ignored in AI hardware discussions. The author proposes a concept: combining four mobile RTX 5080 GPUs to build an AI monster with 64GB of VRAM.
While this idea is currently a non-starter—primarily due to physical form factors, power and thermal constraints, and the lack of multi-GPU interconnects like NVLink—it offers an interesting angle on breaking conventional bottlenecks in acquiring AI compute power.
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