Intel Core i3-7100 vs Intel Core i7-8665U

Compare Intel 7th Generation Core i3 2 core CPU vs Intel 8th Generation Core i7 4 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
$ 1410.01 significantly less expensive
$ 1540.00

Benchmark Score

Overall Score

A combined score of all workloads

1764 points
2271 points
28% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

3405 points
3777 points
10% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

1328 points
1836 points
38% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

1278 points
1758 points
37% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i3-7100 and the Core i7-8665U? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

34.32 points
45.82 points
33% slightly higher Blender score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

2322 points
2425 points
4% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1183 points
54% significantly higher Geekbench 5 (single) score
765 points

Specifications

Cores

Number of physical processing units

2
4
100% significantly more cores

Threads

Number of logical processing units

4
8
100% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.9 GHz
105% significantly higher clock speed
1.9 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

51 W
15 W
239% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
Identical
16

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB
Identical
64 GiB

Other details

Rank

Ranking in the hardwareDB database

764th of 1,089
669th of 1,089

Family

The product line

7th Generation Core i3
8th Generation Core i7

Release date

The official date of release of this chip

2017 February
2019 May

Memory Type

The type of memory used by this chip

DDR4-2133
DDR4-2400

Is Unlocked

Can this CPU can be overclocked

No
-

Supports ECC memory

Does this CPU support error correcting memory

Yes
No

Core i3-7100 vs Core i7-8665U benchmarks

According to the hardwareDB Benchmark tool, the Core i7-8665U is faster than the Core i3-7100. Furthermore, our gaming benchmark shows that it also outperforms the Core i3-7100 in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i7-8665U has significantly more cores with 4 cores compared to the Core i3-7100 that has 2 cores. It also has more threads than the Core i3-7100. With our hardware info, we find that the Core i3-7100 has a significantly higher clock speed than the Core i7-8665U. The Core i7-8665U outputs less heat than Core i3-7100 thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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. Indeed, the Core i3-7100 has more threads than cores. Each physical core is split into multiple threads.

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