AMD Ryzen 9 3900X vs Intel Core i5-11400

Compare AMD Ryzen 9 Desktop 12 core CPU vs Intel 11th 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

$ 229.99
$ 129.99
$ 100.00 significantly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

8422 points
48% significantly better overall score
5682 points

Gaming Score

The raw gaming performance with a fast GPU

8440 points
0.84% slightly better gaming score
8370 points

Multitasking Score

Performance in workloads using up to 8 cores

8406 points
73% significantly better multitasking score
4847 points

Heavy Workload Score

Performance in workloads using up to 16 cores

8392 points
79% significantly better heavy workload score
4675 points

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900X and the Core i5-11400? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

8594 points
50% significantly higher 3DMark Physics score
5721 points
Blender score

Blender score

Cycles Render (Samples per minute)

276.80 points
92% significantly higher Blender score
144.07 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

9929 points
38% slightly higher Geekbench 5 (multi) score
7150 points
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1667 points
1888 points
13% slightly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

9907 points
36% slightly higher Geekbench 6 (multi) score
7262 points
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1704 points
1960 points
15% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

12
100% significantly more cores
6

Threads

Number of logical processing units

24
100% significantly more threads
12

Clock Speed

Base frequency at which the chip operates

3.80 GHz
5% slightly higher clock speed
3.6 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
4% slightly higher turbo speed
4.4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W
65 W
61% significantly lower TDP

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L1 Cache

Smallest embedded memory, but the fastest

768 KiB
60% significantly more L1 cache
480 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
100% significantly more L2 cache
3 MiB

L3 Cache

General memory pool for all cores

64 MiB
433% significantly more L3 cache
12 MiB

Other details

Rank

Ranking in the hardwareDB database

130th of 1,089
276th of 1,089

Family

The product line

Ryzen 9 Desktop
11th Generation Core i5

Release date

The official date of release of this chip

2019 July
2021 February

Memory Type

The type of memory used by this chip

DDR4
DDR4-3200

Is Unlocked

Can this CPU can be overclocked

Yes
No

Supports ECC memory

Does this CPU support error correcting memory

-
No

Ryzen 9 3900X vs Core i5-11400 comparison

Our benchmark analysis concludes that the Ryzen 9 3900X performs better than the Core i5-11400. Despite this, the Core i5-11400 has the advantage in our gaming benchmark.

With info from our database, we find that the Ryzen 9 3900X has significantly more cores with 12 cores whereas the Core i5-11400 has 6 cores. It also has more threads than the Core i5-11400. Our comparison shows that the Ryzen 9 3900X has a slightly higher clock speed compared to the Core i5-11400. Also, the Ryzen 9 3900X has a slightly higher turbo speed. The Core i5-11400 outputs less heat than Ryzen 9 3900X thanks to a 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 9 3900X has significantly more L2 cache when compared to the Core i5-11400. The Ryzen 9 3900X also has significantly more L3 cache.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. Indeed, the Ryzen 9 3900X has more threads than cores. Each physical core is split into multiple threads.

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