Intel Core i9-9900KF vs Intel Core i5-12400F

Compare Intel 9th Generation Core i9 8 core CPU vs Intel 12th Generation Core i5 6 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Price

The cheapest price from our partner retailers

$ 399.00
$ 179.99
$ 219.01 significantly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

6827 points
7069 points
3% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

8465 points
9794 points
15% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

6279 points
1% slightly better multitasking score
6210 points

Heavy Workload Score

Performance in workloads using up to 16 cores

6130 points
2% slightly better heavy workload score
6009 points

Free CPU Benchmark

Want to compare your processor against the Core i9-9900KF and the Core i5-12400F? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

7066 points
18% slightly higher 3DMark Physics score
5946 points
Blender score

Blender score

Cycles Render (Samples per minute)

176.47 points
10% slightly higher Blender score
159.61 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

8008 points
8804 points
9% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1647 points
2154 points
30% slightly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

8172 points
9125 points
11% slightly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1723 points
2218 points
28% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

8
33% slightly more cores
6

Threads

Number of logical processing units

16
33% slightly more threads
12

Clock Speed

Base frequency at which the chip operates

3.6 GHz
44% significantly higher clock speed
2.5 GHz

Turbo Speed

Higher frequency used for heavy workloads

5 GHz
13% slightly higher turbo speed
4.4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

95 W
65 W
46% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
20
25% slightly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
Identical
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

512 KiB
6% slightly more L1 cache
480 KiB

L3 Cache

General memory pool for all cores

16 MiB
18 MiB
12% slightly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

204th of 1,089
188th of 1,089

Family

The product line

9th Generation Core i9
12th Generation Core i5

Release date

The official date of release of this chip

2019 February
2022 February

Memory Type

The type of memory used by this chip

DDR4-2666
DDR5-4800

Is Unlocked

Can this CPU can be overclocked

Yes
No

Supports ECC memory

Does this CPU support error correcting memory

No
-

Core i9-9900KF vs Core i5-12400F specs and performance

According to the hardwareDB Benchmark tool, the Core i5-12400F is faster than the Core i9-9900KF. Furthermore, our gaming benchmark shows that it also outperforms the Core i9-9900KF in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i9-9900KF has slightly more cores with 8 cores compared to the Core i5-12400F that has 6 cores. It also has more threads than the Core i5-12400F. Our comparison shows that the Core i9-9900KF has a significantly higher clock speed compared to the Core i5-12400F. Also, the Core i9-9900KF has a slightly higher turbo speed. The Core i5-12400F outputs less heat than Core i9-9900KF thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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 i9-9900KF has more threads than cores. Each physical core is split into multiple threads.

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