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Intel Core i7-3770 Quad-Core 3.4 GHz LGA 1155 Processor - BX80637I73770 vs Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black

Updated August 2026The Intel Core i7-7700K is the superior choice for performance and gaming capabilities, while the i7-3770 offers great value for basic tasks.

The Intel Core i7-7700K is the superior choice for performance and gaming capabilities, while the i7-3770 offers great value for basic tasks.

Why Intel Core i7-3770 Quad-Core 3.4 GHz LGA 1155 Processor - BX80637I73770 is better

price

i7-3770 is significantly cheaper at £62.00

basic tasks

i7-3770 is adequate for everyday tasks

older games

i7-3770 can handle older gaming titles

Why Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black is better

performance

i7-7700K has a higher base clock speed of 4.2 GHz

4K support

i7-7700K supports 4K Ultra HD gaming

advanced features

i7-7700K includes Intel AVX2 for enhanced performance

Overall score

Intel Core i7-3770 Quad-Core 3.4 GHz LGA 1155 Processor - BX80637I73770
65
Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black
85

Specifications

SpecIntel Core i7-3770 Quad-Core 3.4 GHz LGA 1155 Processor - BX80637I73770Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black
Base Clock3.4 GHz4.2 GHz
Max Turbo3.9 GHz4.5 GHz
Cache8 MB8 MB
Price£62.00£308.57
4K SupportNoYes
AVX2 SupportNoYes

Dimension comparison

Intel Core i7-3770 Quad-Core 3.4 GHz LGA 1155 Processor - BX80637I73770Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black

Overview of the Intel Core i7-3770

The Intel Core i7-3770 is a quad-core processor that operates at a base clock speed of 3.4 GHz, with a max turbo frequency reaching up to 3.9 GHz. This model, designated as BX80637I73770, is designed for the LGA 1155 socket and features an 8 MB Intel Smart Cache. Priced at £62.00, it offers a balance of performance and affordability for users looking for a capable CPU for everyday tasks and moderate gaming.

The i7-3770 is particularly well-suited for users who do not require the latest technology but still want decent performance for tasks such as web browsing, office applications, and older games. Its max memory bandwidth of 25.6 GB/s ensures that it can handle multitasking effectively, although it may not compete with newer models in high-demand scenarios.

Overview of the Intel Core i7-7700K

The Intel Core i7-7700K is a more advanced quad-core CPU, operating at a base clock speed of 4.2 GHz. This processor also features an 8 MB cache and has been designed to support newer technologies, including 4K Ultra HD output. Priced significantly higher at £308.57, the i7-7700K targets gamers and content creators who require faster processing speeds and enhanced graphics capabilities.

With its support for resolutions up to 4096 x 2304 pixels, the i7-7700K excels in delivering stunning visuals, making it an ideal choice for users interested in high-definition gaming or video editing. Additionally, the inclusion of Intel Advanced Vector Extensions 2 (Intel AVX2) enhances its performance in floating-point-intensive applications, making it a robust option for demanding tasks.

Performance Comparison

In terms of performance, the i7-7700K outshines the i7-3770 with its superior clock speed of 4.2 GHz compared to the latter’s 3.4 GHz. This increase in base clock speed translates into better performance in applications that require more processing power. The turbo frequency of the i7-3770 reaches 3.9 GHz, yet it still does not match the i7-7700K's consistent performance, which can handle more intensive workloads with ease.

For users focused on gaming or high-performance applications, the i7-7700K is the clear winner due to its higher clock speeds and advanced features. In contrast, those with lighter usage needs will find the i7-3770 adequate, but may not experience the same level of responsiveness or speed in demanding scenarios.

Gaming Capabilities

When it comes to gaming, the Intel Core i7-7700K is the superior choice, especially with its ability to support 4K Ultra HD gaming. This processor is engineered for high-performance gaming, allowing for impressive graphics and fluid gameplay. The i7-7700K's capabilities extend to supporting multiple displays, which enhances the gaming experience by providing more screen real estate.

On the other hand, the i7-3770, while still competent for less demanding games, may struggle with modern titles that require more processing power and advanced graphics support. Its lower base clock speed and absence of 4K support mean that gamers looking for the latest experiences would be better served with the i7-7700K.

Price Analysis

The Intel Core i7-3770 is priced at £62.00, making it an attractive option for budget-conscious users seeking a reliable CPU for everyday tasks. However, the performance trade-offs are evident when compared to the i7-7700K, which is priced at £308.57. The significant price difference reflects the technological advancements and performance capabilities of the i7-7700K, which can justify its higher cost for those who require a more powerful processor.

While the i7-3770 offers great value for its price point, users need to consider whether the basic performance meets their needs or if investing in the i7-7700K would ultimately result in a better long-term experience. The i7-7700K’s features and performance may well make it a more cost-effective option for gamers and professionals, despite the higher initial investment.

Use Case Scenarios

The Intel Core i7-3770 is best suited for users engaged in everyday tasks such as browsing the internet, office work, and older gaming titles. Its capabilities are adequate for individuals who do not require cutting-edge performance and are looking for a budget-friendly option.

Conversely, the Intel Core i7-7700K is engineered for users engaged in more intensive tasks, such as gaming, video editing, and 3D rendering. Its higher clock speed and advanced features make it ideal for those who need superior performance and are willing to invest more for enhanced capabilities. The choice between these two CPUs ultimately depends on the user’s specific requirements and budget.

Which should you buy?

When deciding between the Intel Core i7-3770 and the Intel Core i7-7700K, it is essential to consider your specific needs and budget. If you are looking for an affordable CPU that can handle basic tasks, the i7-3770 at £62.00 is a solid choice. However, if you require enhanced performance for gaming or resource-intensive applications, the i7-7700K, despite its higher price of £308.57, offers superior capabilities that justify the investment. Ultimately, your decision should align with your performance requirements and how much you are willing to spend for those enhancements.

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Intel Core i7-3770 Quad-Core 3.4 GHz LGA 1155 Processor - BX80637I73770 vs Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black | versusfinder