AMD Ryzen 7 5800X vs Intel Core i5-8400

Compare AMD Ryzen 7 Desktop 8 core CPU vs Intel 8th Generation Core i5 6 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Price

The cheapest price from our partner retailers

$ 219.80
$ 169.99
$ 49.81 slightly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

7869 points
110% significantly better overall score
3741 points

Gaming Score

The raw gaming performance with a fast GPU

9478 points
57% significantly better gaming score
6024 points

Multitasking Score

Performance in workloads using up to 8 cores

7328 points
141% significantly better multitasking score
3030 points

Heavy Workload Score

Performance in workloads using up to 16 cores

7169 points
146% significantly better heavy workload score
2906 points

Free CPU Benchmark

Want to compare your processor against the Ryzen 7 5800X and the Core i5-8400? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

7634 points
108% significantly higher 3DMark Physics score
3658 points
Blender score

Blender score

Cycles Render (Samples per minute)

213.11 points
176% significantly higher Blender score
77.12 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

10085 points
113% significantly higher Geekbench 5 (multi) score
4729 points
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

2119 points
61% significantly higher Geekbench 5 (single) score
1312 points
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

10211 points
110% significantly higher Geekbench 6 (multi) score
4858 points
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

2193 points
58% significantly higher Geekbench 6 (single) score
1380 points

Specifications

Cores

Number of physical processing units

8
33% slightly more cores
6

Threads

Number of logical processing units

16
166% significantly more threads
6

Clock Speed

Base frequency at which the chip operates

3.8 GHz
35% slightly higher clock speed
2.8 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.7 GHz
17% slightly higher turbo speed
4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W
65 W
61% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

20
25% slightly more pcie lanes
16

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
33% slightly more L1 cache
384 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

4 MiB
166% significantly more L2 cache
1.5 MiB

L3 Cache

General memory pool for all cores

32 MiB
255% significantly more L3 cache
9 MiB

Other details

Rank

Ranking in the hardwareDB database

151st of 1,089
456th of 1,089

Family

The product line

Ryzen 7 Desktop
8th Generation Core i5

Release date

The official date of release of this chip

2020 May
2017 November

Memory Type

The type of memory used by this chip

DDR4
DDR4-2666

Is Unlocked

Can this CPU can be overclocked

Yes
No

Supports ECC memory

Does this CPU support error correcting memory

Yes
No

Ryzen 7 5800X vs Core i5-8400 comparison

According to the hardwareDB Benchmark tool, the Ryzen 7 5800X 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 Ryzen 7 5800X has slightly more cores than the Core i5-8400. Indeed, the Ryzen 7 5800X has 8 cores compared to 6 cores found in the Core i5-8400. It also has more threads than the Core i5-8400. With our hardware info, we find that the Ryzen 7 5800X has a slightly higher clock speed than the Core i5-8400. Also, the Ryzen 7 5800X has a slightly higher turbo speed. The Core i5-8400 outputs less heat than Ryzen 7 5800X 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 Ryzen 7 5800X has significantly more L2 cache than the Core i5-8400. The Ryzen 7 5800X 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. Indeed, the Ryzen 7 5800X has more threads than cores. Each physical core is split into multiple threads.

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