Intel Core i9-13900K vs Intel Core Ultra 9 285K
The Intel Core Ultra 9 285K is the better choice for users building a new system who prioritize efficiency, integrated graphics, and future platform support, while the i9-13900K is suitable for those upgrading an existing LGA1700 system or needing higher multi-threaded performance in specific scenarios.
AI Verdict
Intel Core i9-13900K wins overall.
By the numbers
Performance
Pick A wins
While the 13900K has higher boost clock and more threads, the 285K's newer architecture (3nm vs 7nm) and higher base clock often translate to superior single-core and gaming performance, with multi-core performance being very close or slightly favoring the 13900K in heavily threaded tasks due to more threads.
Value for money
Pick A wins
Both CPUs have the same MSRP, but the 285K offers a more advanced manufacturing process, better integrated graphics, and a newer platform, providing more value for the same price.
Power efficiency
Pick A wins
The 285K's 3nm process node is significantly more power-efficient than the 13900K's 7nm process, leading to lower power consumption and heat generation under load.
Future-proofing
Pick A wins
The 285K utilizes the newer LGA1851 socket, offering a longer upgrade path and support for future Intel generations, compared to the LGA1700 socket which is at the end of its lifecycle.
Pick A if…
- • You are building a brand new PC and want the latest platform.
- • You prioritize power efficiency and lower heat output.
- • You need better integrated graphics performance for light gaming or productivity without a dedicated GPU.
- • You want a CPU with a longer upgrade path for future generations.
Pick B if…
- • You are upgrading an existing LGA1700 system and want to reuse your motherboard and DDR4 RAM.
- • You primarily run heavily multi-threaded applications that can fully utilize the 13900K's 32 threads.
- • You find the 13900K at a significant discount compared to the 285K.
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 the better choice for users building a new system who prioritize efficiency, integrated graphics, and future platform support, while the i9-13900K is suitable for those upgrading an existing LGA1700 system or needing higher multi-threaded performance in specific scenarios.
When does Intel Core i9-13900K win?+
You are building a brand new PC and want the latest platform. You prioritize power efficiency and lower heat output. You need better integrated graphics performance for light gaming or productivity without a dedicated GPU. You want a CPU with a longer upgrade path for future generations.
When does Intel Core Ultra 9 285K win?+
You are upgrading an existing LGA1700 system and want to reuse your motherboard and DDR4 RAM. You primarily run heavily multi-threaded applications that can fully utilize the 13900K's 32 threads. You find the 13900K at a significant discount compared to the 285K.
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.