i5 8400 vs i7 7700K


  1. Introduction
  2. i5 8400 Overview
  3. i7 7700K Overview
  4. Performance Comparison
  5. Price Comparison
  6. Power Consumption
  7. Overclocking Potential
  8. Gaming Performance
  9. Multitasking Performance
  10. Conclusion


Welcome to our comparison between the i5 8400 and the i7 7700K processors. In this article, we will analyze the key differences between these two CPUs and help you determine which one is the best fit for your needs.

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i5 8400 Overview

The i5 8400 is a 6-core, 6-thread processor from Intel’s 8th generation Coffee Lake lineup. It operates at a base frequency of 2.8GHz and can reach up to 4.0GHz with Turbo Boost. This CPU is known for its excellent performance in gaming and multitasking scenarios.

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i7 7700K Overview

The i7 7700K, on the other hand, is a 4-core, 8-thread processor from Intel’s 7th generation Kaby Lake lineup. It operates at a higher base frequency of 4.2GHz and can reach up to 4.5GHz with Turbo Boost. This CPU is popular among gamers and content creators due to its strong single-core performance.

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Performance Comparison

When it comes to overall performance, the i7 7700K has a slight advantage over the i5 8400. Thanks to its higher clock speeds and hyper-threading technology, the i7 7700K performs better in single-threaded tasks and applications that can utilize multiple threads effectively.

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Price Comparison

In terms of price, the i5 8400 is generally more affordable than the i7 7700K. This price difference makes the i5 8400 an attractive option for budget-conscious users who still want a powerful CPU for their gaming or productivity needs.

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Power Consumption

When it comes to power consumption, the i5 8400 is more efficient than the i7 7700K. The 8th generation Coffee Lake processors are built on a 14nm++ process, which results in lower power consumption and better thermal performance compared to the 7th generation Kaby Lake processors.

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Overclocking Potential

If you are interested in overclocking your CPU, the i7 7700K is the better choice. It is unlocked and designed for overclocking, allowing you to push its clock speeds even further. On the other hand, the i5 8400 is not unlocked, limiting its overclocking potential.

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Gaming Performance

Both the i5 8400 and the i7 7700K offer excellent gaming performance. However, due to its higher clock speeds and better single-threaded performance, the i7 7700K may provide a slight advantage in certain games that heavily rely on single-core performance.

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Multitasking Performance

When it comes to multitasking, the i5 8400 and the i7 7700K perform similarly. The additional cores of the i5 8400 help in handling multiple tasks simultaneously, while the hyper-threading technology of the i7 7700K allows for better multitasking performance.

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In conclusion, both the i5 8400 and the i7 7700K are powerful processors, each with its own strengths. The i7 7700K offers better single-threaded performance and overclocking potential, making it ideal for gamers and content creators who prioritize these aspects. On the other hand, the i5 8400 provides excellent performance at a more affordable price point, making it a great choice for budget-conscious users. Ultimately, the decision between these two CPUs depends on your specific needs and budget.

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