Intel Core i3-8100 vs Intel Core i7-8665U

Compare Intel 8th Generation Core i3 4 core CPU vs Intel 8th Generation Core i7 4 core processor, specs and benchmark score. Which is the better CPU for gaming?

Benchmark Score
Other Benchmarks
Specifications
Comments (0)
Popular Comparisons

CPU Comparison

Quickly search and compare processors

Intel Core i7-8665U

Price

The cheapest price from our partner retailers

$ 169.99

$ 1370.01 significantly less expensive

$ 1540.00

Benchmark Score

Overall Score

A combined score of all workloads

2549 points

12% slightly better overall score

2271 points

Gaming Score

The raw gaming performance with a fast GPU

4731 points

25% slightly better gaming score

3777 points

Multitasking Score

Performance in workloads using up to 8 cores

1938 points

5% slightly better multitasking score

1836 points

Heavy Workload Score

Performance in workloads using up to 16 cores

1859 points

5% slightly better heavy workload score

1758 points

Free CPU Benchmark

Want to compare your processor against the Core i3-8100 and the Core i7-8665U? Download our free and quick PC Performance Test.

Download CPU Benchmark

Other Benchmarks

Blender score

Cycles Render (Samples per minute)

47.29 points

3% slightly higher Blender score

45.82 points

Geekbench 5 (multi) score

Multi threaded benchmark

3299 points

36% slightly higher Geekbench 5 (multi) score

2425 points

Geekbench 5 (single) score

Single threaded benchmark

1201 points

56% significantly higher Geekbench 5 (single) score

765 points

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

100% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.6 GHz

89% significantly higher clock speed

1.9 GHz

Turbo Speed

Higher frequency used for heavy workloads

3.6 GHz

4.8 GHz

33% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W

15 W

333% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

Identical

Memory Channels

Lanes for simultaneous memory access

Identical

Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB

Identical

64 GiB

Other details

Rank

Ranking in the hardwareDB database

616th of 1,089

669th of 1,089

Family

The product line

8th Generation Core i3

8th Generation Core i7

Release date

The official date of release of this chip

2017 November

2019 May

Memory Type

The type of memory used by this chip

DDR4-2400

Is Unlocked

Can this CPU can be overclocked

Supports ECC memory

Does this CPU support error correcting memory

Yes

Core i3-8100 vs Core i7-8665U specs and performance

In our benchmarks, the Core i3-8100 beats the Core i7-8665U in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-8665U in all gaming tests too.

Our spec comparison shows that they have an identical amount of cores but the Core i7-8665U has more threads. With our hardware info, we find that the Core i3-8100 has a significantly higher clock speed than the Core i7-8665U. Despite this, the Core i7-8665U has a slightly higher turbo speed. The Core i7-8665U outputs less heat than Core i3-8100 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. For instance, the Core i3-8100 has the same number of threads as cores. This means the the CPU does not support hyperthreading.