Intel Core i9-13900K vs Intel Core Ultra 9 285K
The Intel Core Ultra 9 285K is generally better for users building a new system who prioritize future-proofing and power efficiency, while the i9-13900K remains a strong contender for raw multi-threaded performance on an existing LGA1700 platform.
AI Verdict
Intel Core Ultra 9 285K wins overall.
By the numbers
Performance
Pick A wins
The i9-13900K, despite its older architecture, often shows slightly higher multi-threaded performance due to its higher thread count (32 vs 24) and slightly higher boost clock in some scenarios, though single-core performance might be very close.
Value for money
Tie
Both CPUs are priced identically at MSRP, offering comparable high-end performance for their respective generations, making value dependent on platform costs.
Power efficiency
Pick B wins
The Ultra 9 285K, built on a more advanced 3nm process, will inherently be more power-efficient than the 13900K's 7nm process, leading to lower power consumption and heat generation.
Future-proofing
Pick B wins
The Ultra 9 285K uses the newer LGA1851 socket and supports faster DDR5 memory (6400 MT/s max vs 5600 MT/s max), offering a more modern platform with better upgrade potential and longer support.
Pick A if…
- • You already own an LGA1700 motherboard and want to upgrade to the highest-end CPU without replacing your motherboard.
- • Your primary workload heavily benefits from a higher thread count (32 threads) and you prioritize peak multi-threaded performance.
- • You are looking for a CPU with proven, mature drivers and ecosystem for current-generation applications.
Pick B if…
- • You are building a brand new high-end PC and want the latest architecture with better power efficiency and a newer socket (LGA1851).
- • You prioritize a more modern integrated graphics solution (Intel Graphics 4 Xe-cores) for light gaming or media tasks.
- • You want a system that supports faster DDR5 memory (6400 MT/s) and offers better long-term upgrade potential.
Specs side-by-side
| Spec | A: Core i9-13900K | B: Core Ultra 9 285K |
|---|---|---|
| Cores | 24 | 24 |
| Threads | 32 | 24 |
| Base clock | 3 GHz | 3.7 GHz |
| Boost clock | 5.8 GHz | 5.7 GHz |
| Socket | LGA1700 | LGA1851 |
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Common questions
Intel Core i9-13900K vs Intel Core Ultra 9 285K — which should I buy?+
The Intel Core Ultra 9 285K is generally better for users building a new system who prioritize future-proofing and power efficiency, while the i9-13900K remains a strong contender for raw multi-threaded performance on an existing LGA1700 platform.
When does Intel Core i9-13900K win?+
You already own an LGA1700 motherboard and want to upgrade to the highest-end CPU without replacing your motherboard. Your primary workload heavily benefits from a higher thread count (32 threads) and you prioritize peak multi-threaded performance. You are looking for a CPU with proven, mature drivers and ecosystem for current-generation applications.
When does Intel Core Ultra 9 285K win?+
You are building a brand new high-end PC and want the latest architecture with better power efficiency and a newer socket (LGA1851). You prioritize a more modern integrated graphics solution (Intel Graphics 4 Xe-cores) for light gaming or media tasks. You want a system that supports faster DDR5 memory (6400 MT/s) and offers better long-term upgrade potential.
Are the prices live or MSRP?+
MSRP is shown as a reference baseline. Click either product card to see live retailer pricing — we pull current prices from Amazon, Newegg, Best Buy and other retailers on demand, cached for 30 days. Prices localize automatically for US, Canada, and India.