Intel took back 70.1% of desktop CPU shipments in the third quarter of 2026, according to Mercury Research data reported by TechPowerUp and PC Gamer. AMD’s share fell to 29.9% from 34.9% in the second quarter, a drop of 5.0 points by our arithmetic.
In servers the move went the other way: TechPowerUp says AMD’s share rose to 35.5% from 34.5% the quarter before, a gain of 1.0 point by our arithmetic. AMD has said data center will be over 80% of its 2027 revenue, and TechPowerUp says Lisa Su recently called AMD a “data center first” company.
Business Pill · GPUs explained
An evergreen Business Engineer explainer on what GPUs do and why AI depends on them. It teaches the general idea only and does not discuss CPU market share or this story.
The key insight: As we read the two reports, the same quarter moved AMD in opposite directions: TechPowerUp reports its desktop share down 5.0 points to 29.9% while its server share rose 1.0 point to 35.5%, by our arithmetic.
TechPowerUp says the 29.9% is AMD’s lowest desktop figure since early 2025, when it sat at around 28%, and that AMD held 33.6% of the desktop market a year ago. That puts AMD 3.7 points below a year earlier and Intel at about 2.34 times AMD’s desktop share, by our arithmetic.
PC Gamer describes the shift as “a gargantuan lurch back towards Intel” and says AMD had fought for a decade to raise its share to around 35% by the second quarter.
AMD share of x86 desktop and server CPU shipments, from Mercury Research data as reported by TechPowerUp and PC Gamer on 13-14 November 2026. Point changes are our arithmetic.
Mercury Research Is Not Sure Why
Mercury Research, quoted by PC Gamer, says: “It’s difficult to know the driver of this for sure, but we speculate that due to the lower mobile CPU demand, Intel could allocate more products to the desktop market, which normally sees a significant demand increase in the third quarter, and Intel had been under-supplying this market earlier in 2026.”
It adds that “AMD, however, did not appear to have a seasonal increase”, and points to a second factor: “AMD’s greater exposure to the PC gaming market, which has suffered due to supply constraints of gaming GPUs.” Our piece on RTX 5090 prices in Tokyo shows how high gaming-card prices have run this month.
A Shrinking Consumer Market
Both reports say the consumer market is getting smaller. TechPowerUp says Mercury notes that desktop volumes took a large hit in the second quarter and that both companies saw mobile CPU shipments drop by more than 10% in the third quarter. PC Gamer says AMD has admitted a supply deficit, with demand outstripping supply.
TechPowerUp’s own reading is that Intel’s gain says more about supply than about its desktop chips winning over gamers. Analysts at Oppenheimer, in a note we covered, see AMD’s data center business up 135% in 2027.
The Structural Read
As we read it, the desktop drop says more about where chips were sent than about demand for AMD processors: Mercury Research itself speculates that Intel allocated more products to desktops and that AMD did not see the usual third-quarter rise.
As we read it, the AI link runs through the data center: AMD has said data center will be over 80% of its 2027 revenue, and TechPowerUp says Lisa Su recently called AMD a data-center-first company.
Mercury Research, quoted by PC Gamer, 13 November 2026
“It’s difficult to know the driver of this for sure”
Three Implications
FOR PC BUILDERS Mercury Research points to supply constraints of gaming GPUs as one reason AMD lost desktop share, per PC Gamer.
FOR THE CONSUMER MARKET TechPowerUp says both companies saw mobile CPU shipments drop by more than 10% in the third quarter.
FOR THE SERVER MARKET TechPowerUp reports AMD’s server share at 35.5%, up from 34.5% the quarter before.
The framework says the May 2026 Map of AI “argued that the seven-layer AI stack is now governed from the bottom”, naming energy, silicon and compute capacity.
As we read it, AMD’s server gain beside its desktop loss fits that bottom-up view; the framework does not discuss desktop CPU share or Mercury Research.
What Is Not Established
Mercury Research’s full report is paid, so the figures here come from PC Gamer and TechPowerUp, which cite it; PC Gamer also writes of “an increase in market share for desktop CPUs of 5.1%” without saying whose, while TechPowerUp gives a five-point AMD drop. The sources give no unit volumes, no revenue share and no confirmed cause for the swing; Mercury calls its explanations speculation. Intel and AMD were not contacted for this piece.
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Mercury Research data reported by TechPowerUp put Intel at 70.1% of desktop CPU shipments in the third quarter and AMD at 29.9%, down 5.0 points in a quarter, while AMD’s server share rose to 35.5%. Mercury says it cannot be sure of the cause and points to Intel’s desktop allocation and AMD’s exposure to a gaming market short of GPUs.
A note on sourcing. The share figures are Mercury Research data as reported by TechPowerUp on 14 November 2026 and PC Gamer on 13 November 2026, including Mercury quotes published by PC Gamer; Mercury’s full report is paid and was not read. Point changes and ratios are our arithmetic. Intel and AMD were not contacted for this piece.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
