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Intel Core i9-12900KF 16 Core 3.20GHz CPU Alder Lake Processor - LGA 1700, image 1 of 31 / 3

Intel Core i9-12900KF 16 Core 3.20GHz CPU Alder Lake Processor - LGA 1700

From
£298.99
4 retailers
Cheapest at Box
£298.99
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See all 4 prices

Specifications

ArchitectureAlder Lake
Base Clock3.2 GHz
Boost Clock5.2 GHz
Cores16
E-Cores8
L3 Cache30 MB
P-Cores8
SocketLGA1700

Performance Benchmarks

Calculated Figures

Aggregate Boost Clock83.2GHz-cores
lowest 12median 41highest 518
Higher than 74% of 293 compared
16 cores × 5.2 GHz boost
L3 Cache per Core1.88MB
lowest 0.2median 3highest 16
Higher than 25% of 149 compared
30 MB L3 ÷ 16 cores
TDP per Core7.8W
lowest 2.7median 11highest 33
Lower than 78% of 342 compared
125 W ÷ 16 cores

Calculated from this product's published specifications, not measured in testing. Ranked against other products in this category.

Blender render benchmark

Measured

Real runs submitted to Blender Open Data. Higher is faster at rendering.

Source: Blender Open Data (CC0), Blender 4.5.0: samples per minute over the monster, junkshop and classroom scenes, median of 97 runs. Same for every product on this model.

At a glance

Intel Core i9-12900KF 16 Core 3.20GHz CPU Alder Lake Processor - LGA 1700 is a 16-core processor (8 performance, 8 efficiency) with 24 threads and a boost clock of 5.2 GHz, for the LGA1700 socket. It scores 98 out of 100 on our estimated performance scale, relative to current processors. It is listed at 4 UK shops, cheapest in stock at Box for £298.99 (checked 19 October 2026); in-stock prices run from £298.99 to £349.99.

From the retailer

The Intel Core i9-12900KF LGA 1700 Processor is a top-tier, high-performance CPU designed for users who demand the best in speed and multitasking capabilities. Part of Intel's i9 series, this processor features 16 cores and 24 threads, making it exceptionally suitable for gaming, content creation, and heavy workstation tasks. With its architecture based on Alder Lake, it leverages advanced hybrid technology to efficiently distribute workloads, delivering outstanding performance across a variety of applications. This processor is positioned as a premium choice, differentiating itself from lower-tier options with its impressive clock speed of up to 5.10 GHz, enabling rapid computing and smooth operation under load. The substantial 30 MB Smart Prefetch Cache further enhances its performance, making it adept at handling complex processes. Users looking for robust capabilities, particularly in gaming and creative content applications, will find the i9-12900KF a formidable choice compared to alternatives that may offer less processing power or fewer threads. The Intel Core i9-12900KF excels in real-world applications such as high-resolution gaming, video editing, and virtual machine management without compromising speed. Its LGA 1700 package ensures easy compatibility with a wide range of motherboards, making it an attractive option for those building new systems. However, its substantial power consumption of 125W means that users should also consider the thermal management aspects of their setup, as adequate cooling solutions will be necessary to maintain optimal performance during intensive tasks. What Makes It Different? The Intel Core i9-12900KF stands out in the market as a premium processor ideal for enthusiasts and professionals alike. Unlike more budget-friendly models, this processor is engineered for those who require top-tier performance, whether for gaming, streaming, or demanding productivity environments.

Estimated Performance

98/ 100

Scored against current processors, where 100 is the strongest one we can score. Calculated from cores, boost clock and l3 cache.

Estimated from manufacturer specifications, not measured. Useful for comparing similar parts; actual performance varies by game, driver and system.

Running cost

Rated power (TDP or peak turbo) 125 W

£36.03
a year
£3.00
a month

At the Ofgem price cap, 26.32p per kWh, Oct to Dec 2026

Assumes the part draws its rated power for every hour of use. Real draw varies with the game or workload, and is usually lower.

Where to Buy

We may earn a commission when you buy through these links. It never changes the price you pay, or the order shops are listed in, which is cheapest first.

B
Box
In Stockchecked 1 hour ago
£298.99Buy Now
C
CCL Computers
In Stockchecked 1 hour ago
£299.99Buy Now
A
AWD-IT
In Stockchecked 33 minutes ago
£319.99Buy Now
O
Overclockers UK
In Stockchecked 2 hours ago
£349.99Buy Now

* Prices may vary and are checked periodically rather than live.

Refurbished and used

Second-hand listings, kept apart from the new prices above and not counted in this product's price.

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