Intel Core i5-8400 vs AMD Ryzen 7 9800X3D

Compare Intel 8th Generation Core i5 6 core CPU vs AMD Ryzen 9000 Series 8 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

$ 169.99
$ 285.06 significantly less expensive
$ 455.05

Benchmark Score

Overall Score

A combined score of all workloads

3741 points
10982 points
193% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

6024 points
13108 points
117% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

3030 points
10252 points
238% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

2906 points
10031 points
245% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-8400 and the Ryzen 7 9800X3D? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

3658 points
10082 points
175% significantly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

77.12 points
325.43 points
321% significantly higher Blender score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

4858 points
18346 points
277% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1380 points
3336 points
141% significantly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

6
8
33% slightly more cores

Threads

Number of logical processing units

6
16
166% significantly more threads

Clock Speed

Base frequency at which the chip operates

2.8 GHz
4.7 GHz
67% significantly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4 GHz
5.2 GHz
30% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W
84% significantly lower TDP
120 W

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L1 Cache

Smallest embedded memory, but the fastest

384 KiB
640 KiB
66% significantly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

1.5 MiB
8 MiB
433% significantly more L2 cache

L3 Cache

General memory pool for all cores

9 MiB
96 MiB
966% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

456th of 1,089
70th of 1,089

Family

The product line

8th Generation Core i5
Ryzen 9000 Series

Release date

The official date of release of this chip

2017 November
2024 November

Memory Type

The type of memory used by this chip

DDR4-2666
DDR5

Is Unlocked

Can this CPU can be overclocked

No
Yes

Supports ECC memory

Does this CPU support error correcting memory

No
-

Core i5-8400 vs Ryzen 7 9800X3D benchmarks

In our benchmarks, the Ryzen 7 9800X3D beats the Core i5-8400 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-8400 in all gaming tests too.

With info from our database, we find that the Ryzen 7 9800X3D has slightly more cores with 8 cores whereas the Core i5-8400 has 6 cores. It also has more threads than the Core i5-8400. With our hardware info, we find that the Ryzen 7 9800X3D has a significantly higher clock speed than the Core i5-8400. Also, the Ryzen 7 9800X3D has a slightly higher turbo speed. A Core i5-8400 CPU outputs less heat than a Ryzen 7 9800X3D CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, the Ryzen 7 9800X3D has significantly more L2 cache when compared to the Core i5-8400. The Ryzen 7 9800X3D 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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