Intel Core i9-9900KS vs Intel Core i5-12600HX

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

CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

7509 points
7962 points
6% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

9220 points
9881 points
7% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

6930 points
7422 points
7% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

6769 points
7289 points
7% slightly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

173.21 points
5% slightly higher Blender score
164.70 points

Specifications

Cores

Number of physical processing units

8
12
49% significantly more cores

Threads

Number of logical processing units

16
Identical
16

Clock Speed

Base frequency at which the chip operates

4.01 GHz
60% significantly higher clock speed
2.5 GHz

Turbo Speed

Higher frequency used for heavy workloads

5 GHz
8% slightly higher turbo speed
4.6 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

127 W
55 W
130% 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
960 KiB
87% significantly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

2 MiB
9 MiB
350% significantly more L2 cache

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

171st of 1,107
157th of 1,107

Family

The product line

9th Generation Core i9
12th Generation Core i5

Release date

The official date of release of this chip

2019 November
2022 May

Memory Type

The type of memory used by this chip

DDR4-2666
DDR5-4800

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Supports ECC memory

Does this CPU support error correcting memory

No
Yes

Core i9-9900KS vs Core i5-12600HX specs and performance

Our benchmark analysis concludes that the Core i5-12600HX performs better than the Core i9-9900KS. Furthermore, our gaming benchmark shows that it also outperforms the Core i9-9900KS in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i5-12600HX has significantly more cores with 12 cores compared to the Core i9-9900KS that has 8 cores. But they both have the same number of threads. Our comparison shows that the Core i9-9900KS has a significantly higher clock speed compared to the Core i5-12600HX. Also, the Core i9-9900KS has a slightly higher turbo speed. The Core i5-12600HX outputs less heat than Core i9-9900KS thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Core i5-12600HX has significantly more L2 cache than the Core i9-9900KS. The Core i5-12600HX also has slightly more L3 cache.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Core i9-9900KS has more threads than cores. Each physical core is split into multiple threads.

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