Tag HBM

AI & Compute

Qwen 3.8 27B Needs Two RTX 5090s for Full Context

Three horizontal bars drawn to scale from one shared axis: two short gray bars for the 32,768 and 37,740 tokens of context a single RTX 5090 reached under the published vLLM and SGLang recipes, against a blue bar roughly eight times longer for Qwen 3.8 27B's full 262,144-token window.

Weights that fit in 32GB still left the RTX 5090 waiting half an hour for a first token, and the fix was a different inference engine rather than a different card.

Saeid Yazdani
September 9, 2026

AI & Compute

AMD Helios Is Its First Real Rack-Scale Answer to NVIDIA

A grid of exactly 72 cells in twelve columns and six rows, one cell per GPU in the Helios rack.

AMD's MI455X and 72-GPU Helios rack finally challenge NVIDIA at the system level, but peak specifications are only the start of the comparison.

Saeid Yazdani
July 26, 2026

Market & Pricing

DDR5 Prices Have Tripled: What Happened, and How to Buy Memory in 2026

Headline above a staircase of pixel blocks whose last step is exactly three times the first, the tripling of DDR5 prices drawn to scale.

A 32 GB DDR5-6000 kit that cost around $100 in 2025 now lists near $500 at US retailers. The cause sits in the server room, not the retail channel. Here is the supply-side mechanism, the numbers behind it, and a practical way to buy memory while the squeeze lasts.

Saeid Yazdani
July 22, 2026