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Intel Core i9-12900K Gaming Desktop Processor with vs Intel Core Ultra 9 Desktop Processor 285K - 24

Updated August 2026 — Intel Core i9-12900K Gaming Desktop Processor with wins on price and compatibility, Intel Core Ultra 9 Desktop Processor 285K - 24 wins on performance and efficiency.

The Intel Core Ultra 9 offers superior performance and efficiency, making it the better choice for demanding tasks. However, the i9-12900K is a more budget-friendly option.

Why Intel Core i9-12900K Gaming Desktop Processor with is better

Price

i9-12900K is significantly cheaper at $352.70

Core Count

i9-12900K has a solid performance for gaming

Compatibility

i9-12900K is compatible with older motherboards

Why Intel Core Ultra 9 Desktop Processor 285K - 24 is better

Performance

Ultra 9 has a higher clock speed of 5.7 GHz

Efficiency

Ultra 9's architecture runs cooler and quieter

Cache Size

Ultra 9 has a larger 40 MB cache for better performance

Overall score

Intel Core i9-12900K Gaming Desktop Processor with
80
Intel Core Ultra 9 Desktop Processor 285K - 24
90

Specifications

SpecIntel Core i9-12900K Gaming Desktop Processor withIntel Core Ultra 9 Desktop Processor 285K - 24
Max Clock Speed5.2 GHz5.7 GHz
Core Count16 (8P+8E)24 (8P+16E)
Threads2424
Cache Size30 MB40 MB
Integrated GraphicsIntel UHD 770Intel Graphics

Dimension comparison

Intel Core i9-12900K Gaming Desktop Processor withIntel Core Ultra 9 Desktop Processor 285K - 24

Overview

When it comes to high-performance desktop processors, the Intel Core i9-12900K and the Intel Core Ultra 9 Desktop Processor 285K stand out as top contenders. The i9-12900K is priced at $352.70, while the Ultra 9 is more premium at $557.00, making it about 58% more expensive. Both processors offer impressive specifications, but they cater to slightly different user needs.

Performance

The Intel Core Ultra 9 Desktop Processor 285K boasts a remarkable performance ceiling with a maximum clock speed of up to 5.7 GHz. In comparison, the Intel Core i9-12900K offers a maximum clock speed of 5.2 GHz. This means that the Ultra 9 is optimized for users seeking the highest performance levels, particularly in demanding tasks such as gaming and content creation. With 24 cores (8 P-cores and 16 E-cores), the Ultra 9 significantly outperforms the i9-12900K, which has 16 cores (8 P-cores and 8 E-cores). This makes the Ultra 9 an excellent choice for multitasking and heavy workloads.

Efficiency

Both processors emphasize efficiency, yet the Intel Core Ultra 9 takes the lead with its advanced performance hybrid architecture. This architecture is designed to prioritize and distribute workloads effectively, helping the processor run cooler and quieter than previous generations. The i9-12900K, while also efficient with its 10 nm technology, does not match the Ultra 9's capability to manage power and performance as effectively. Users who prioritize thermal management alongside performance might find the Ultra 9 to be the more suitable option.

Graphics Capability

Integrated graphics are a crucial feature for many users, and both processors come equipped with Intel graphics. The i9-12900K features Intel UHD 770 Graphics, while the Ultra 9 also includes integrated Intel graphics. While both offer satisfactory performance for casual gaming and media consumption, the Ultra 9 is designed to better handle intensive graphical tasks thanks to its superior core configuration. Users who rely on integrated graphics for day-to-day tasks will benefit from the Ultra 9's enhanced capabilities.

Compatibility

Compatibility is an essential factor when choosing a processor, especially for builders looking to maximize their system's potential. The Intel Core i9-12900K is compatible with Intel 600 and 700 series chipset-based motherboards, while the Ultra 9 is designed for Intel 800 series chipset-based motherboards. This difference means that users who already have an existing motherboard may find the i9-12900K to be a more straightforward upgrade option. However, for those starting fresh with a new build, the Ultra 9 offers the latest features and advancements in motherboard technology.

Cache Memory

Cache memory plays a significant role in a processor's overall performance, affecting how quickly it can access frequently used data. The Intel Core i9-12900K features 30 MB of L3 cache, providing efficient data retrieval for gaming and multitasking. In contrast, the Intel Core Ultra 9 includes a larger 40 MB cache, which can enhance performance in data-heavy applications, particularly for creators and gamers who push their systems to the limit. This additional cache can result in smoother performance during intensive tasks.

Price Comparison

The price difference between the Intel Core i9-12900K and the Ultra 9 is substantial, with the Ultra 9 retailing for $557.00 compared to the i9-12900K's $352.70. This makes the Ultra 9 about 58% more expensive. For budget-conscious consumers, the i9-12900K presents a more attractive option, especially for gamers who want high performance without breaking the bank. However, those who can justify the higher price may find the Ultra 9's advanced features worth the investment.

User Experience

Both processors are designed with gamers and content creators in mind, but they cater to different experience levels. The Intel Core i9-12900K is built for next-generation gaming, allowing users to game and multitask without compromise. It is an excellent choice for gamers who want a solid performance at a reasonable price. On the other hand, the Intel Core Ultra 9 is tailored for serious creators and enthusiasts, offering advanced features that can enhance productivity and performance. Users need to consider their specific needs when choosing between these two processors.

Which should you buy?

Deciding between the Intel Core i9-12900K and the Intel Core Ultra 9 ultimately depends on your performance needs and budget. If you are looking for a powerful yet cost-effective solution for gaming and multitasking, the i9-12900K at $352.70 is a fantastic choice. However, if you require the utmost performance for demanding applications and are willing to invest more, the Ultra 9 at $557.00 offers superior capabilities and efficiency. Consider what aspects matter most to you—whether it's price, performance, or specific features—before making your final decision.