HP Omnibook X is Engadget's fastest-tested PC, but extra memory costs $1,030 and can't be upgraded

HP's Omnibook X (2026) earned the top performance score in Engadget's testing that year, powered by Intel's X9 chip with 32GB of memory built directly into the processor. That memory boost adds $1,030 and can't be upgraded later. A sharper, brighter screen upgrade costs another $90.