Can I Run Devstral-2 123B on NVIDIA DGX Spark?

Written by Jakub Rusinowski · Last updated August 15, 2026

Yes. Devstral-2 123B needs 74.3 GB at Q4_K_M and the NVIDIA DGX Spark has 128 GB, leaving about 53.7 GB of headroom, at roughly 9 tok/s (estimated) with room for up to 128K of context.

The numbers

ModelDevstral-2 123B
Parameters123B
QuantizationQ4_K_M
VRAM needed74.3 GB
NVIDIA DGX Spark VRAM128 GB
VerdictRuns
Max context128K
Estimated speed~9 tok/s

What to do next

Nothing to change — run it at Q4_K_M. If you want more capability, check whether the next size up also fits.

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Running Devstral-2 123B on this card:

NVIDIA DGX Spark (128GB)
128 GB VRAM · 150 W board power
2026 prices are volatile — check the current listing.
Check price on Amazon

Buy vs. rent Devstral-2 123B
Buy the GPU
~$4,699
NVIDIA DGX Spark · MSRP
Rent by the hour
from $0.77/hr
A100 (80 GB) class

At 2 hrs/day, buying (~$4,699) beats renting at $0.77/hr after about 8.5 years.

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Vast.ai $0.77/hr · typical low · varies
Rent on Vast.ai →
RunPod $1.39/hr
Rent on RunPod →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

Other Devstral sizes on the NVIDIA DGX Spark

Devstral-2 123B on nearby hardware

All Devstral sizes on the NVIDIA DGX Spark | VRAM calculator for Devstral-2 123B | NVIDIA DGX Spark GPU page | Check your hardware