Tudor M

Co-founder, Enverge

Co-founded Enverge to make DGX Spark accessible by the hour. Writes about inference performance, quantization, and the economics of renting vs buying GPU hardware.

Posts

NVIDIA DGX Spark Price: Buy for $4,699 or Rent by the Hour? — NVIDIA DGX Spark price in 2026: $4,699 to buy, from $0.75/hour to rent. Breakeven math, hidden ownership costs, and when buying beats hourly Spark Cloud access.
Where to Buy NVIDIA DGX Spark: Marketplace, Micro Center, PNY, and Rental Options — Where to buy NVIDIA DGX Spark in 2026 — NVIDIA Marketplace, Micro Center, PNY, Amazon, OEM GB10 partners — plus when renting Spark Cloud at $0.65/hr makes more sense.
DGX Spark vs RTX Spark: Same Chip, Different Machine — DGX Spark vs RTX Spark: same GB10/N1X chip, different machine. Choose by direction — DGX for clustering and the datacenter CUDA stack, RTX for Windows personal AI.
How fast is the DGX Spark, really? Prefill vs. decode, and the 273 GB/s wall — Why DGX Spark decode tops out around 3 tok/s on dense 70B models — and why prefill, MoE models, and batched serving tell a very different story.
The Cheapest Way to Run a 70B Model Locally in 2026 — The cheapest way to run a 70B model locally, compared: DGX Spark, GB10 clones, Mac Studio, RTX 5090, and cloud rental — with specs, prices, and break-even math.
How (and Why) to Quantize LLMs on NVIDIA DGX Spark — Quantize LLMs on NVIDIA DGX Spark using NVFP4, FP8, and GGUF. Step-by-step calibration, evaluation, and tradeoffs for Llama 3.1 70B — under $2 of compute.