Intel Core i9-12900KF vs Intel Core Ultra 9 275HX

Compare Intel 12th Generation Core i9 16 core CPU vs Intel Core Ultra (Series 2) 24 core processor, specs and benchmark score. Which is the better CPU for gaming?

Benchmark Score
Other Benchmarks
Specifications
Comments (0)
Popular Comparisons

CPU Comparison

Quickly search and compare processors

Benchmark Score

Overall Score

A combined score of all workloads

12789 points

13226 points

3% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

14030 points

5% slightly better gaming score

13355 points

Multitasking Score

Performance in workloads using up to 8 cores

12383 points

13234 points

6% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

12302 points

13294 points

8% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i9-12900KF and the Core Ultra 9 275HX? Download our free and quick PC Performance Test.

Download CPU Benchmark

Other Benchmarks

3DMark Physics score

Physics simulation benchmark

11666 points

16352 points

40% slightly higher 3DMark Physics score

Blender score

Cycles Render (Samples per minute)

361.08 points

466.44 points

29% slightly higher Blender score

Geekbench 6 (multi) score

Multi threaded benchmark

14786 points

17922 points

21% slightly higher Geekbench 6 (multi) score

Geekbench 6 (single) score

Single threaded benchmark

2584 points

2844 points

10% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

49% significantly more cores

Threads

Number of logical processing units

Identical

Clock Speed

Base frequency at which the chip operates

3.2 GHz

18% slightly higher clock speed

2.7 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.2 GHz

5.4 GHz

3% slightly higher turbo speed

PCIe Lanes

Number of physical connections between the CPU and expansion slots

20% slightly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

Identical

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB

256 GiB

100% significantly more supported memory

L3 Cache

General memory pool for all cores

30 MiB

36 MiB

20% slightly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

46th of 1,114

40th of 1,114

Family

The product line

12th Generation Core i9

Core Ultra (Series 2)

Release date

The official date of release of this chip

2021 November

2025 February

Memory Type

The type of memory used by this chip

DDR5-4800

DDR5-6400

Is Unlocked

Can this CPU can be overclocked

Yes

Supports ECC memory

Does this CPU support error correcting memory

Core i9-12900KF vs Core Ultra 9 275HX comparison

Our benchmark analysis concludes that the Core Ultra 9 275HX performs better than the Core i9-12900KF. Despite this, the Core i9-12900KF has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Core Ultra 9 275HX has significantly more cores with 24 cores compared to the Core i9-12900KF that has 16 cores. But they both have the same number of threads. Our comparison shows that the Core i9-12900KF has a slightly higher clock speed compared to the Core Ultra 9 275HX. Despite this, the Core Ultra 9 275HX has a slightly higher turbo speed.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Core i9-12900KF has more threads than cores. Each physical core is split into multiple threads.