Intel Core i5-8400 vs Intel Core i5-14600K

Compare Intel 8th Generation Core i5 6 core CPU vs Intel Core i5 (14th gen) 14 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

$ 169.99
$ 114.80 significantly less expensive
$ 284.79

Benchmark Score

Overall Score

A combined score of all workloads

3741 points
12025 points
221% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

6024 points
14272 points
136% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

3030 points
11307 points
273% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

2906 points
11156 points
283% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-8400 and the Core i5-14600K? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

3658 points
10606 points
189% significantly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

77.12 points
303.53 points
293% significantly higher Blender score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

4858 points
16100 points
231% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1380 points
2838 points
105% significantly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

6
14
133% significantly more cores

Threads

Number of logical processing units

6
20
233% significantly more threads

Clock Speed

Base frequency at which the chip operates

2.8 GHz
3.5 GHz
25% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4 GHz
5.3 GHz
32% slightly higher turbo speed

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
192 GiB
49% significantly more supported memory

L2 Cache

Secondary embedded memory, slower than L1 cache

1.5 MiB
20 MiB
1233% significantly more L2 cache

L3 Cache

General memory pool for all cores

9 MiB
24 MiB
166% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

456th of 1,089
53rd of 1,089

Family

The product line

8th Generation Core i5
Core i5 (14th gen)

Release date

The official date of release of this chip

2017 November
2023 November

Memory Type

The type of memory used by this chip

DDR4-2666
DDR5-5600

Is Unlocked

Can this CPU can be overclocked

No
-

Supports ECC memory

Does this CPU support error correcting memory

No
Yes

Core i5-8400 vs Core i5-14600K comparison

According to the hardwareDB Benchmark tool, the Core i5-14600K is faster than the Core i5-8400. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-8400 in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i5-14600K has significantly more cores than the Core i5-8400. Indeed, the Core i5-14600K has 14 cores compared to 6 cores found in the Core i5-8400. It also has more threads than the Core i5-8400. Our comparison shows that the Core i5-14600K has a slightly higher clock speed compared to the Core i5-8400. Also, the Core i5-14600K has a slightly higher turbo speed. The cache sizes of these CPUs are different. Indeed, the Core i5-14600K has significantly more L2 cache than the Core i5-8400. The Core i5-14600K also has significantly 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. For instance, the Core i5-8400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.

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