Best CPUs · head-to-head

AMD Ryzen 9 9950X3D vs Intel Core Ultra 9 285K

A sourced, side-by-side comparison. Intel Core Ultra 9 285K is cheaper at $589. Every spec and price links to its source.

Which is better: the AMD Ryzen 9 9950X3D or Intel Core Ultra 9 285K?

The AMD Ryzen 9 9950X3D wins 2 of the 2 specs we compare head to head; the other wins 0. The Intel Core Ultra 9 285K is the cheaper at $589. Get the AMD Ryzen 9 9950X3D for the stronger spec sheet, the Intel Core Ultra 9 285K to spend less.

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Key specs, head to head

The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.

Base clock (GHz)
AMD Ryzen 9 9950X3D 4.3
Intel Core Ultra 9 285K 3.7
L3 cache (MB)
AMD Ryzen 9 9950X3D 128
Intel Core Ultra 9 285K 36

Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec AMD Ryzen 9 9950X3D Intel Core Ultra 9 285K
US price $699 $589
BrandAMDIntel
Released2025-Q12024-10
Cores 16 24
Threads 32 24
Base clock (GHz) 4.3 3.7
Boost clock (GHz) 5.7 5.7
L3 cache (MB) 128 36
Tdp (W) 170 125
Socket AM5 LGA1851
Igpu AMD Radeon Graphics Intel Graphics
Release 2025-Q1 2024-10

Sources — AMD Ryzen 9 9950X3D: cpubenchmark.net (verified 2026-06-15). Intel Core Ultra 9 285K: cpubenchmark.net (verified 2026-06-15).

What's the difference between the AMD Ryzen 9 9950X3D and Intel Core Ultra 9 285K?

Where the two actually differ on the specs we track (7 of 8). Matching specs are omitted.

  • Cores: AMD Ryzen 9 9950X3D 16 vs Intel Core Ultra 9 285K 24
  • Threads: AMD Ryzen 9 9950X3D 32 vs Intel Core Ultra 9 285K 24
  • Base clock (GHz): AMD Ryzen 9 9950X3D 4.3 vs Intel Core Ultra 9 285K 3.7
  • L3 cache (MB): AMD Ryzen 9 9950X3D 128 vs Intel Core Ultra 9 285K 36
  • Tdp (W): AMD Ryzen 9 9950X3D 170 vs Intel Core Ultra 9 285K 125
  • Socket: AMD Ryzen 9 9950X3D AM5 vs Intel Core Ultra 9 285K LGA1851
  • Igpu: AMD Ryzen 9 9950X3D AMD Radeon Graphics vs Intel Core Ultra 9 285K Intel Graphics

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

AMD Ryzen 9 9950X3D

Two whitelisted testers (TechPowerUp, Tom's Hardware) lab-benchmarked this exact SKU. Both call it the best all-around desktop CPU: top-tier productivity plus gaming that ties or nearly ties the 9800X3D and beats Intel's 285K by 22-37% at 1080p. The sole recurring complaint is its ~$700 price. No third source added. (2 sourced reviews, 2 lab-tested.)

Praised: Class-leading productivity performance, even edging the non-X3D 9950X; Gaming ties or comes within ~3% of the 9800X3D while beating Intel's 285K/14900K at 1080p; Fully unlocked for overclocking.

Flagged: Highest price of any desktop CPU at ~$700; Gaming power draw (~144 W) is nearly double the single-CCD 9800X3D's ~75 W; Optimum performance still needs software setup (Microsoft Game Bar).

Intel Core Ultra 9 285K

Three whitelisted testers (TechPowerUp, Tom's Hardware, PCWorld), all benchmarked Oct 2024, agree the Core Ultra 9 285K delivers a big power-efficiency improvement and solid multithreaded/productivity gains over Intel's own 14900K, but regresses in gaming versus that same predecessor and trails AMD's Ryzen 9 9950X. All three find it hard to recommend for gamers at launch pricing. (3 sourced reviews, 3 lab-tested.)

Praised: Major power/efficiency improvement over 14900K (TPU measured 132 W vs 180 W in apps, 94 W vs 149 W in gaming); Strong multithreaded/productivity gains over prior gen (TH verdict cites strong productivity gains; PCW measured 2-21% rendering/encoding improvement vs 14900K).

Flagged: Gaming regresses vs prior-gen 14900K and lags AMD (TPU ~5% slower than 14900K at 1080p; PCW measured a 18% Ryzen 9 9950X lead in Cyberpunk 2077); Poor value at ~$589/$590 launch price; hard to recommend, especially for gamers; Elevated memory latency from the disaggregated design (TH measured 94.1 ns vs 79.1 ns for the 14900K at DDR5-5600), contributing to weaker gaming.

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