Intel Core i3-2120 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

Quickly search and compare processors


The cheapest price from our partner retailers

$ 69
$ 229.92 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 i3-2120 and the Core i7-940? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

64% significantly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

9% 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
12% 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

935th 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 i3-2120 vs Core i7-940 benchmarks

In our benchmarks, the Core i3-2120 beats the Core i7-940 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-940 in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i7-940 has significantly more cores than the Core i3-2120. Indeed, the Core i7-940 has 4 cores compared to 2 cores found in the Core i3-2120. It also has more threads than the Core i3-2120. With our hardware info, we find that the Core i3-2120 has a slightly higher clock speed than the Core i7-940. A Core i3-2120 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.

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 i3-2120 has more threads than cores. Each physical core is split into multiple threads.


No comments yet! Be the first to leave a comment using the form below.

Keep comments on topic and be polite. Comments are subject to moderation before they are published.

Popular CPU Comparisons