[Digital Today reporter Jinju Hong] AMD topped 30 percent market share in the x86 client CPU market in the second quarter for the first time this year. It drew attention for expanding share by limiting its shipment decline more than rivals even as overall PC demand was not strong.

Gigazine reported on Aug. 25 that Mercury Research, a market research firm that tracks processor shipments, put AMD's x86 client CPU share at 30.3 percent in the second quarter of 2026. That was up 9.2 percentage points from 21.1 percent on the same basis two years earlier.

Client CPUs refer to the combined market for desktop and mobile processors. AMD's breakdown showed 28.9 percent in mobile CPUs and 34.9 percent in desktop CPUs. Its share expanded sharply in the desktop market in particular.

The milestone is difficult to interpret as a broad boom in the PC market. Instead, analysts see AMD lifting its share as the desktop CPU market shrank sharply while it held up better than Intel.

Desktop CPU shipments in the second quarter fell 20 percent from a year earlier. Mercury Research assessed the shipment environment for the desktop x86 CPU market at the time as severe. It said higher PC prices and tight GPU supply weakened end demand for desktop PCs, affecting CPU demand as well.

A slowdown in the high-priced gaming PC market also weighed. With GPU shortages pushing up PC prices and increasing consumers' purchasing burden, the overall desktop market contracted. Even so, AMD raised its share by keeping its shipment decline smaller than competitors.

The mobile market was relatively solid. Industry-wide mobile CPU shipments in the second quarter rose slightly from a year earlier. The server CPU market also showed growth. Server CPU shipments rose 20 percent from a year earlier and continued a gradual increase from the previous quarter.

Arm-based processors are also gaining influence in the PC CPU market, which has been centered on x86. Mercury Research estimated Arm-based client CPU share at 15.3 percent in the second quarter. That was up 0.9 percentage points from the previous quarter. The shift reflects Apple, Qualcomm and MediaTek expanding the presence of Arm-based processors in the PC market.

Total processor shipments fell instead. AMD's weak game console business reduced shipments of SoCs and embedded products, and the drop in desktop CPU shipments also affected overall volumes.

Ultimately, AMD's move above 30.3 percent in x86 client CPU share can be seen less as a result of market growth than as a result of its relative competitiveness standing out in a sluggish PC market. If PC prices and GPU supply issues ease and desktop demand recovers, a key question will be whether AMD can translate its expanded share into actual shipment growth.