Intel took back a large slice of the desktop processor market in the third quarter of 2026. Mercury Research puts its share of desktop x86 shipments at 70.1% for the quarter, against 65.1% in the second, while AMD slid from 34.9% to 29.9%.
That is roughly a five-point swing in one quarter, which is unusually large for a market that moves slowly. Mercury itself says it is hard to know the cause for sure, so the explanations below are its own guesses, not measured facts.
The first guess is supply. Weaker demand for laptop chips may have let Intel send more processors to desktops, a segment that usually grows in the third quarter and one Intel had under-supplied earlier in 2026. AMD did not see the usual seasonal rise. The second is AMD’s heavier exposure to PC gaming, which Mercury says has been hurt by shortages of gaming graphics cards.
The figures count chips shipped, not chips bought by users, so they say little about which processor is faster. AMD’s Ryzen X3D chips are still widely recommended for gaming. A shipment share also reflects what Intel and AMD sent to builders and PC makers, which is not the same as what shoppers chose.
The jump also follows a weak spring. Mercury said desktop processor volumes saw a large drop in the second quarter, and the report says both companies shipped more than 10% fewer mobile chips in the third quarter, so they are fighting over a smaller consumer market.
Mercury’s next quarterly numbers will show whether the jump holds or was a one-off.
