Intel Core i3-1005G1 vs Intel Core i7-3840QM

Compare Intel 10th Generation Core i3 2 core CPU vs Intel Core 4 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Benchmark Score

Overall Score

A combined score of all workloads

21 %
31 %
47% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

41 %
42 %
2% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

16 %
27 %
68% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

15 %
26 %
73% significantly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

43% significantly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

31% slightly higher Geekbench (single) score



Number of physical processing units

100% significantly more cores


Number of logical processing units

100% significantly more threads

Clock Speed

Base frequency at which the chip operates

1 GHz
3 GHz
133% significantly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

3 GHz
4 GHz
11% slightly higher turbo speed


Thermal Design Power: Measure of heat generated by the CPU

15 W
200% significantly lower TDP
45 W

Memory Channels

Lanes for simultaneous memory access


Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB
100% significantly more supported memory
32 GiB

Other details


Ranking in the hardwareDB database

781st of 1,327
587th of 1,327


The product line

10th Generation Core i3

Release date

The official date of release of this chip

August 2019
August 2012

Memory Type

The type of memory used by this chip


Is Unlocked

Can this CPU can be overclocked


Supports ECC memory

Does this CPU support error correcting memory


Core i3-1005G1 vs Core i7-3840QM benchmarks

Our benchmark analysis concludes that the Core i7-3840QM performs better than the Core i3-1005G1. Furthermore, our gaming benchmark shows that it also outperforms the Core i3-1005G1 in all gaming tests too.

With info from our database, we find that the Core i7-3840QM has significantly more cores with 4 cores whereas the Core i3-1005G1 has 2 cores. It also has more threads than the Core i3-1005G1. These CPUs have different clock speeds. Indeed, the Core i7-3840QM has a significantly higher clock speed compared to the Core i3-1005G1. Also, the Core i7-3840QM has a slightly higher turbo speed. A Core i3-1005G1 CPU outputs less heat than a Core i7-3840QM CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. Indeed, the Core i3-1005G1 has more threads than cores. Each physical core is split into multiple threads.


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