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Home > How To > What's the difference between core i3 and i5 and i7
What's the difference between core i3 and i5 and i7

What's the difference between core i3 and i5 and i7

By  Ethan Thong 2019-12-28 2611 958

Core i3 can be seen as a further stripped-down version of Core i5, and there will be a 32nm process version (R & D code Clarkdale, based on Westmere architecture). The biggest feature of Core i3 is the integration of GPU (graphics processing unit), that is, Core i3 will be packaged by two cores of CPU+GPU. Due to the limited performance of the integrated GPU, users can add graphics cards if they want to get better 3D performance. It is worth noting that even the production process of the core part of the Clarkdale, display will still be 45nm.

Core i3 is a dual-core processor based on Nehalem architecture. It still uses an integrated memory controller, three-level cache mode, L3 reaches 8MB, and supports Turbo Boost and other technologies.

Intel core i5 core thread 4 core 4 thread number secondary cache 4*256KB tertiary cache 8m TDP 95W

Intel core i3 core thread number 2 core 4 thread number secondary cache 2*256KB tertiary cache 4M TDP 65W

The biggest difference between them is that I5 supports Rui frequency, I3 does not, I3 only has dual cores, while I5 has dual cores and 4 cores.

With the development of CPU technology, new products are changing with each passing day. At present, Intel has mainly adopted the second generation i3i5i7 CPU with Sandy Bridge core.

The CPU of the first generation of i3 i5 i7 was a leap forward in PC performance-smaller size, better performance, smarter performance and lower power consumption-after INTEL launched the new 32 nm Core i3 / i5/i7 processor in early 2010. What are the characteristics of these three new core i3 / i5/i7 processors, what different experiences do they have, and what kind of users are suitable for each?

First of all, it is recommended that you distinguish between the i3 i5 CPU for mobile notebooks and the i3 i5 CPU for desktops. Desktop i3 is dual-core quad-threaded, while i5 has both dual-core and quad-core. Notebook i3 i5 is dual-core four-thread. I3 i5 difference is still in the frequency with or without Rui frequency technology, the frequency of i5 is significantly higher than the cancellation of navigation to the page.

Notebook mobile core i3 i5 i7 differences

I3 dual-core analog quad-core (that is, quad-threaded) no Rui-frequency;

I5 dual-core analog quad-core (that is, quad-thread) has the same technical specifications as i3 except Rui-frequency technology;

I7 quad-core analog eight-core (i.e. eight-thread) has high power consumption and strong performance; the performance gap of

I3 i5 is smaller than that of i5i7.

Desktop computer Core i3 i5 i7 difference

Core i5 is a quad-core processor based on the Nehalem architecture, using integrated memory controller, three-level cache mode, L3 up to 8MB, support Turbo Boost and other technologies of the new processor. The main difference between it and Core i7 (Bloomfield) is that the bus uses mature DMI (Direct Media Interface), instead of QPI, and only supports dual-channel DDR3 memory. Structurally, it uses the LGA1156 interface, and Core i7 uses LGA1366. I5 has Rui frequency technology, which can overclock under certain circumstances.

Core i3 can be seen as a further stripped-down (or castrated) version of Core i5, and there will be a 32nm process version (R & D code Clarkdale, based on Westmere architecture). The biggest feature of Core

I3 is the integration of GPU (graphics processing unit), that is, Core i3 will be packaged by two cores of CPU+GPU. Due to the limited performance of the integrated GPU, users can add graphics cards if they want to get better 3D performance. It is worth noting that even the production process of the core part of the Clarkdale, display will still be 45nm. The biggest difference between i3 and i5 is that i3 does not have Rui Band technology.


What is  Turbo  technology?

When a running program is started, the processor will automatically accelerate to the appropriate frequency, and the original running speed will be increased by 10% 20%. To ensure that the program runs smoothly; when dealing with complex applications, the processor can automatically increase the running frequency to speed up, and easily carry out multi-task processing that requires higher performance; 

When switching work tasks, if only memory and hard disk are doing the main work, the processor will immediately be in a power-saving state. This not only ensures the efficient use of energy, but also greatly improves the speed of the program. Increase performance by up to 20% for high-load tasks by intelligently accelerating processor speed to maximize performance according to application requirements.

The second generation core i3 i5 i7 processor

The moment of history was once again created by INTEL in June 2010, Intel released its revolutionary processor, the second generation Core i3/i5/i7. The second-generation Core i3/i5/i7 belongs to the second-generation intelligent core family, all based on the new Sandy Bridge micro-architecture. Compared with the first-generation products, it mainly brings five important innovations:

1, using the new 32nm Sandy Bridge micro-architecture, lower power consumption and stronger performance.

2, built-in high-performance GPU (core graphics card), stronger video coding and graphics performance.

3, Rui frequency acceleration technology 2.0, smarter and more efficient.

4, introduce a new ring architecture, resulting in higher bandwidth and lower latency.

5, brand-new AVX, AES instruction set, strengthen floating-point operation and encryption and decryption operation.

The second generation of intelligent core family is still composed of three major brands: Core i3, Core i5 and Core i7. Intel divides CPU into three major brands according to basic parameters such as core number, core frequency, three-tier cache and core technologies such as hyperthreading and Rui-frequency acceleration. The performance difference of i3 i5 is still not as great as that of i5 i7. For ordinary users, the choice of i3 2100 is undoubtedly the most cost-effective CPU, the current price of i3 2100 is about 800yuan, the price is close to 2100, but the performance is strong, and the intention to replace the first generation of Core i3 is very obvious, so Core i3530 is gradually becoming a snub product.


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