Local AI hardware: DGX Spark is $4,699, 128GB Strix Halo boxes sit near $3,500, and the new Mac Studio starts at $2,499. Who should buy, wait, or rent.
GPU electricity cost at 700 watts is $0.0684 an hour at the July 2026 U.S. industrial price and $0.1017 at the commercial price, before the building.
NVIDIA data center revenue was $89.0 billion in Q2 FY2027. Hyperscale grew 13.15% and the other line 25.21%. The mix, recomputed from the 8-K.
Server useful life in five 2025–2026 10-Ks runs from 2 to 6 years. Meta lengthened, Amazon shortened a subset, and the dollar gap is recomputed.
KV cache memory on one H200: Llama 3 70B at 16-bit weights leaves 1.0 GB, about 3,052 tokens. Byte formula, unit trap, and a worked example.
Per-GPU recomputation of MLPerf® Inference v6.1: the 5.7× headline is 3.04× for Available hardware, and software moved AMD 37.9%.