Intel Core i5-11400F vs Intel Core i7-5820K

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

$ 150.09
$ 279.86 significantly less expensive
$ 429.95

Benchmark Score

Overall Score

A combined score of all workloads

5669 points
38% slightly better overall score
4081 points

Gaming Score

The raw gaming performance with a fast GPU

8320 points
51% significantly better gaming score
5494 points

Multitasking Score

Performance in workloads using up to 8 cores

4844 points
33% slightly better multitasking score
3634 points

Heavy Workload Score

Performance in workloads using up to 16 cores

4676 points
32% slightly better heavy workload score
3527 points

Free CPU Benchmark

Want to compare your processor against the Core i5-11400F and the Core i7-5820K? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

5719 points
61% significantly higher 3DMark Physics score
3543 points
Blender score

Blender score

Cycles Render (Samples per minute)

128.47 points
34% slightly higher Blender score
95.66 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

7380 points
37% slightly higher Geekbench 5 (multi) score
5383 points
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1895 points
67% significantly higher Geekbench 5 (single) score
1134 points
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

7590 points
38% slightly higher Geekbench 6 (multi) score
5467 points
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1979 points
67% significantly higher Geekbench 6 (single) score
1180 points

Specifications

Cores

Number of physical processing units

6
Identical
6

Threads

Number of logical processing units

12
Identical
12

Clock Speed

Base frequency at which the chip operates

2.6 GHz
3.3 GHz
26% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.4 GHz
22% slightly higher turbo speed
3.6 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
28
40% slightly 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
100% significantly more supported memory
64 GiB

Other details

Rank

Ranking in the hardwareDB database

277th of 1,089
428th 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
2014 August

Memory Type

The type of memory used by this chip

DDR4-3200
DDR4-1600

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i5-11400F vs Core i7-5820K benchmarks

Our benchmark analysis concludes that the Core i5-11400F performs better than the Core i7-5820K. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-5820K in all gaming tests too.

When comparing these CPUs we notice that they have the same number of cores and the same number of threads. These CPUs have different clock speeds. Indeed, the Core i7-5820K has a slightly higher clock speed compared to the Core i5-11400F. Despite this, the Core i5-11400F has a slightly higher turbo speed. A Core i5-11400F CPU outputs less heat than a Core i7-5820K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Core i5-11400F has more threads than cores. Each physical core is split into multiple threads.

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