Intel Core i3-2100 vs Intel Core i7-940

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

CPU Comparison

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The cheapest price from our partner retailers

$ 49
$ 249.67 significantly less expensive
$ 299

Benchmark Score

Overall Score

A combined score of all workloads

16 %
6% slightly better overall score
15 %

Gaming Score

The raw gaming performance with a fast GPU

30 %
42% much better gaming score
21 %

Multitasking Score

Performance in workloads using up to 8 cores

12 %
14 %
16% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

11 %
13 %
18% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i3-2100 and the Core i7-940? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

72% significantly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

4% 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

3 GHz
5% slightly higher clock speed
3 GHz


Thermal Design Power: Measure of heat generated by the CPU

65 W
100% significantly lower TDP
130 W

Memory Channels

Lanes for simultaneous memory access

49% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

32 GiB
33% slightly more supported memory
24 GiB

Other details


Ranking in the hardwareDB database

943rd of 1,335
944th of 1,335


The product line


Release date

The official date of release of this chip

February 2011
November 2008

Memory Type

The type of memory used by this chip


Supports ECC memory

Does this CPU support error correcting memory


Core i3-2100 vs Core i7-940 specs and performance

Our benchmark analysis concludes that the Core i3-2100 performs better than the Core i7-940. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-940 in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i7-940 has significantly more cores with 4 cores compared to the Core i3-2100 that has 2 cores. It also has more threads than the Core i3-2100. Our comparison shows that the Core i3-2100 has a slightly higher clock speed compared to the Core i7-940. A Core i3-2100 CPU outputs less heat than a Core i7-940 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 i3-2100 has more threads than cores. Each physical core is split into multiple threads.


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