BenchmarkUpdated 2026-06-26 · 10 min read · by RTXsparks Lab
RTX Spark Power Consumption: Idle to Full Load
Wall-plug measurements for every RTX Spark SKU across idle, inference, fine-tuning, and video-gen workloads. Energy-per-1M-tokens metrics included.
Method
Kill-A-Watt at the wall.
Frequently asked questions
PSU sizing?
240W minimum for 128GB workstation SKUs.