Intel Core i5-11400 vs Intel Core i9-7940X

Compare Intel 11th Generation Core i5 6 core CPU vs Intel Core X-series 14 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

$ 129.99
$ 170.01 significantly less expensive
$ 300.00

Benchmark Score

Overall Score

A combined score of all workloads

5682 points
8% slightly better overall score
5222 points

Gaming Score

The raw gaming performance with a fast GPU

8370 points
35% slightly better gaming score
6170 points

Multitasking Score

Performance in workloads using up to 8 cores

4847 points
4938 points
1% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

4675 points
4896 points
4% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-11400 and the Core i9-7940X? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

144.07 points
261.54 points
81% significantly higher Blender score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

7150 points
9233 points
29% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1888 points
45% significantly higher Geekbench 5 (single) score
1299 points
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

7262 points
10511 points
44% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1960 points
35% slightly higher Geekbench 6 (single) score
1444 points

Specifications

Cores

Number of physical processing units

6
14
133% significantly more cores

Threads

Number of logical processing units

12
28
133% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.6 GHz
16% slightly higher clock speed
3.1 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
153% significantly lower TDP
165 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
896 KiB
86% significantly more L1 cache

L3 Cache

General memory pool for all cores

12 MiB
25 MiB
108% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

276th of 1,089
324th 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 August

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 i9-7940X benchmarks

Our benchmark analysis concludes that the Core i5-11400 performs better than the Core i9-7940X. Furthermore, our gaming benchmark shows that it also outperforms the Core i9-7940X in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i9-7940X has significantly more cores than the Core i5-11400. Indeed, the Core i9-7940X has 14 cores compared to 6 cores found in the Core i5-11400. It also has more threads than the Core i5-11400. These CPUs have different clock speeds. Indeed, the Core i5-11400 has a slightly higher clock speed compared to the Core i9-7940X. Also, the Core i5-11400 has a slightly higher turbo speed. A Core i5-11400 CPU outputs less heat than a Core i9-7940X 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 i5-11400 has more threads than cores. Each physical core is split into multiple threads.

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