Intel Core i5-11400 vs Intel Core i9-7900X

Compare Intel 11th Generation Core i5 6 core CPU vs Intel Core X-series 10 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

$ 129.99
$ 559.96 significantly less expensive
$ 689.95

Benchmark Score

Overall Score

A combined score of all workloads

5682 points
7006 points
23% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

8370 points
9% slightly better gaming score
7653 points

Multitasking Score

Performance in workloads using up to 8 cores

4847 points
6778 points
39% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

4675 points
6719 points
43% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-11400 and the Core i9-7900X? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

5721 points
6987 points
22% slightly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

144.07 points
209.19 points
45% significantly higher Blender score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

7150 points
9102 points
27% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1888 points
34% slightly higher Geekbench 5 (single) score
1406 points
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

7262 points
8832 points
21% slightly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1960 points
36% slightly higher Geekbench 6 (single) score
1432 points

Specifications

Cores

Number of physical processing units

6
10
66% significantly more cores

Threads

Number of logical processing units

12
20
66% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.6 GHz
9% slightly higher clock speed
3.3 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.4 GHz
2% slightly higher turbo speed
4.3 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W
115% significantly lower TDP
140 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

20
44
120% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
4
100% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
Identical
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

480 KiB
640 KiB
33% slightly more L1 cache

L3 Cache

General memory pool for all cores

12 MiB
14 MiB
16% slightly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

276th of 1,089
193rd of 1,089

Family

The product line

11th Generation Core i5
Core X-series

Release date

The official date of release of this chip

2021 February
2017 May

Memory Type

The type of memory used by this chip

DDR4-3200
DDR4-2666

Is Unlocked

Can this CPU can be overclocked

No
Yes

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i5-11400 vs Core i9-7900X benchmarks

According to the hardwareDB Benchmark tool, the Core i9-7900X is faster 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 Core i9-7900X has significantly more cores with 10 cores whereas the Core i5-11400 has 6 cores. It also has more threads than the Core i5-11400. Our comparison shows that the Core i5-11400 has a slightly higher clock speed compared to the Core i9-7900X. Also, the Core i5-11400 has a slightly higher turbo speed. A Core i5-11400 CPU outputs less heat than a Core i9-7900X CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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 Core i5-11400 has more threads than cores. Each physical core is split into multiple threads.

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