What is Core i3 Processor?

Published: 11 Jan 2026

Core i3 is Intel’s entry-level processor series, launched in 2010, designed by Intel, made for smooth everyday use with good speed, low power usage, Hyper-Threading, and built-in graphics. It’s great for students, office work, and normal users who don’t need heavy power.

Core i3 Socket

The first models of Intel Core i3 used the LGA1156 socket to connect to the motherboard. This socket was designed for early Core i3, i5, and i7 processors and allowed the CPU to communicate with the motherboard. The sockets change with upgrades. Take a look:

1st generation Core i3 (2010) → LGA1156
2nd & 3rd generation Core i3 → LGA1155
4th generation Core i3 → LGA1150

An LGA socket (Land Grid Array) is a type of CPU socket on the motherboard where the pins are located on the motherboard, not on the processor.

The processor has flat contact points that touch those pins when installed. It’s used to securely connect the CPU to the motherboard, allowing power and data signals to pass between them.

Specifications of Core i3

Note: These features apply to most Core i3 generations; however, exact numbers vary by model.

Cores and Threads: The early Core i3 had 2 cores, 4 threads. Newer generations may have up to 4 or 6 cores, depending on the model. Hyper-Threading is usually enabled, so the CPU can handle multiple tasks smoothly.
Clock Speed: Runs at good base frequencies (e.g., 1.30 GHz – 3.50 GHz).
Integrated Graphics: Comes with Intel HD, UHD, or Iris Xe Graphics, so you don’t need a separate graphics card for normal use.
Cache Memory: The first models had 3 MB or 4 MB of cache. Cache helps the CPU quickly access frequently used data.

Power Usage of Core i3

Power usage for Core i3 processors varies with their clock speed.

Slower models, usually running between 1.30 GHz and 1.80 GHz, typically consume around 11.5 W, 15 W, or sometimes 25 W.
Medium-speed Core i3 processors, usually running between 2.00 GHz and 2.50 GHz, generally consume around 28 W, 35 W, or 37 W of power.
Faster Core i3 processors, running between 2.90 GHz and 3.50 GHz, typically consume 35 W, 37 W, or 54 W of power.

Where the Core i3 was used mostly

Core i3 processors were commonly used in laptops, especially in entry-level and mid-range models.

They were popular because they balance performance and power efficiency, meaning they can handle everyday tasks like browsing, office work, and media without draining the battery too fast.

Final Words:

I hope all things are clear. If you have any confusion, ask freely in the comments. Keep learning with me, buddies. Thanks for your love and support.

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