Intel Core i7-8665U vs Intel Core i7-3820QM

Compare Intel 8th Generation Core i7 4 core CPU vs Intel Core 4 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

$ 1540.00
$ 499.00
$ 1041.00 significantly less expensive

Benchmark Score

Overall Score

A combined score of all workloads

2271 points
18% slightly better overall score
1913 points

Gaming Score

The raw gaming performance with a fast GPU

3777 points
23% slightly better gaming score
3059 points

Multitasking Score

Performance in workloads using up to 8 cores

1836 points
16% slightly better multitasking score
1573 points

Heavy Workload Score

Performance in workloads using up to 16 cores

1758 points
16% slightly better heavy workload score
1510 points

Free CPU Benchmark

Want to compare your processor against the Core i7-8665U and the Core i7-3820QM? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

45.82 points
10% slightly higher Blender score
41.56 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

2425 points
2717 points
12% slightly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

765 points
6% slightly higher Geekbench 5 (single) score
717 points

Specifications

Cores

Number of physical processing units

4
Identical
4

Threads

Number of logical processing units

8
Identical
8

Clock Speed

Base frequency at which the chip operates

1.9 GHz
2.7 GHz
42% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.8 GHz
29% slightly higher turbo speed
3.7 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

15 W
200% significantly lower TDP
45 W

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
100% significantly more supported memory
32 GiB

Other details

Rank

Ranking in the hardwareDB database

669th of 1,089
733rd of 1,089

Family

The product line

8th Generation Core i7
Core

Release date

The official date of release of this chip

2019 May
2012 May

Memory Type

The type of memory used by this chip

DDR4-2400
DDR3-1333

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i7-8665U vs Core i7-3820QM benchmarks

Our benchmark analysis concludes that the Core i7-8665U performs better than the Core i7-3820QM. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-3820QM 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. Our comparison shows that the Core i7-3820QM has a slightly higher clock speed compared to the Core i7-8665U. Despite this, the Core i7-8665U has a slightly higher turbo speed. A Core i7-8665U CPU outputs less heat than a Core i7-3820QM CPU because of its 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 i7-8665U has more threads than cores. Each physical core is split into multiple threads.

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