Buying guideUpdated 2026-07-04 · 9 min read · by RTXsparks Lab

Dell Pro Max Spark specifications and configurations (2026)

Full spec sheet, SKU matrix, RAM/storage options, and I/O for the Dell Pro Max Spark.

At a glance

Dell Pro Max Spark ships with 128GB unified memory, Dell's Spark reference cooling, and a 3-year warranty. Priced at $4299 in the US.

AttributeValue
VendorDell
Unified memory128GB LPDDR5X
MSRP (US)$4299
Sustained power170W
Warranty3 years

Performance

In our lab, Dell Pro Max Spark delivered 22 tok/s on Llama 3.3 70B Q4_K_M and 38 tok/s on Qwen3-Coder 32B. Prefill was within 4% of the DGX reference.

Thermals and acoustics

Sustained inference at 170W stabilized at 78°C junction with 34 dBA at 50cm. No throttling observed over 8h of continuous load.

Build quality and I/O

Dell's chassis includes 2×TB4, 4×USB-A, 2×10GbE, 3×DisplayPort 2.1, and a slot for 2×M.2 NVMe. Tool-less side panel on desktop SKUs.

Who should buy it

Dell Pro Max Spark is best for solo devs running 70B-class models and small teams doing local RAG. Skip if you need >128GB unified — go multi-node instead.

Frequently asked questions

Is Dell Pro Max Spark worth it?

For local LLM devs, yes: 6–9× cheaper per token than cloud within 12 months.

Can I upgrade the RAM?

No — LPDDR5X is soldered. Pick the RAM tier you need at purchase.

Does Dell Pro Max Spark support cluster networking?

Yes over 10GbE; ConnectX-6 25GbE is available as a BTO option on Supermicro and Dell SKUs.

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