AMD vs Intel CPU Market Share Q3 2025: AMD Hits 25% Milestone, Desktop Dominance Grows

In Q3 2025, AMD's x86 CPU market share crossed the 25% threshold for the first time, reaching 25.6% overall, up from 24.2% last quarter. This marks a pivotal moment in the CPU wars, with AMD's desktop segment surging to a record 33.6%. Intel, facing supply hurdles and delayed launches, saw its share slip across segments. As data center demand fuels server growth, here's a breakdown of the latest Mercury Research data and what it means for PC builders, gamers, and enterprise buyers.

Overall x86 CPU Market: AMD Breaks 25% Barrier

AMD's overall x86 CPU share climbed to 25.6% in Q3 2025, a 1.4 percentage point gain from Q2 and 1.6 points year-over-year. When factoring in embedded devices and gaming consoles like the PlayStation 5 and Steam Deck, AMD's effective share hits 30.9%, a robust 5.9-point jump from last year. This growth stems from increased shipments of AMD's integrated SoCs, bolstering its position in diverse markets.

Intel's dominance holds at 74.4%, but the erosion signals challenges ahead. AMD's client and gaming revenues jumped 47% quarter-over-quarter, with operating margins expanding from 12% to 21%, underscoring improved profitability from high-margin desktop and server sales.

Desktop Segment: AMD's Record 33.6% Share

Desktop remains AMD's stronghold, with a record 33.6% share in Q3, up 1.4 points from Q2's 32.2% and a massive 5.2 points from last year. The Ryzen 9000 series "Granite Ridge" processors have captured gamers and enthusiasts, offering strong value in multi-core workloads and gaming.

Intel's desktop share dipped to 66.4% from 67.8%, hampered by supply shortages and price hikes on its 13th and 14th-gen Raptor Lake CPUs. The new Arrow Lake-based Core Ultra 200 series has seen sluggish adoption, partly due to mixed reviews on gaming performance and power efficiency. If trends hold, AMD could push past 40% by late 2026.

Desktop Market Share Comparison

Vendor	Q3 2025 Share	Q2 2025 Share	YoY Change
AMD	33.6%	32.2%	+5.2 pts
Intel	66.4%	67.8%	-5.2 pts

Mobile Segment: AMD Edges Up to 21.9%

In notebooks, AMD's share rose modestly to 21.9%, a 1.3-point increase from Q2's 20.6%. Intel's mobile dominance stands at 78.1%, down from 79.4%, amid reduced shipments and price adjustments for entry-level Raptor Lake chips. Year-over-year, Intel eked out a 0.4-point gain, but AMD's Ryzen AI 300 series has gained traction in thin-and-light laptops.

Looking ahead, Intel's Panther Lake launch in Q1 2026 could stabilize its position, while AMD's next mobile refresh isn't slated until late 2026 or early 2027, potentially giving Intel breathing room in this volatile segment.

Mobile Market Share Comparison

Vendor	Q3 2025 Share	Q2 2025 Share	YoY Change
AMD	21.9%	20.6%	+1.3 pts
Intel	78.1%	79.4%	+0.4 pts

Server Segment: AMD at 27.8%, Data Center Boom Ahead

AMD's server share inched up to 27.8%, a 0.5-point rise from Q2's 27.3%, with Intel at 72.2%. The Zen 5-based EPYC Turin processors, scaling to 256 cores, have driven record revenues, capitalizing on AI and cloud workloads. Intel's Granite Rapids Xeon chips are gaining steam, tempering AMD's momentum, but overall server shipments are set to expand with data center investments.

This segment highlights the intensifying rivalry, where core counts and efficiency define winners in enterprise deployments.

Server Market Share Comparison

Vendor	Q3 2025 Share	Q2 2025 Share	YoY Change
AMD	27.8%	27.3%	+0.5 pts
Intel	72.2%	72.7%	-0.5 pts

Trends and Future Outlook

AMD's gains are slowing as Intel stabilizes with new launches like Arrow Lake and Panther Lake, but desktop remains a bright spot for Team Red. Server growth, tied to AI infrastructure, favors high-core-count designs from both vendors. Mobile volatility persists, with Intel poised for a rebound.

For consumers, AMD's momentum means more competitive pricing; for enterprises, it's a buyer's market with dual strong options.

Verdict: AMD's Momentum Builds, But Intel Fights Back

Q3 2025 cements AMD as a viable alternative across CPUs, with desktop leadership and server traction. Intel's stumbles are temporary, but sustained innovation will decide the long game. PC enthusiasts: Ryzen 9000 is a win now. Watch Q4 for Arrow Lake's impact.