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Intel BX80677I77700K 7th Gen Pentium Desktop Processor vs Intel Core i5-10400 Desktop Processor 6 Cores up

Updated August 2026 — Intel Core i5-10400 Desktop Processor 6 Cores up leads on cores and threads.

The Intel Core i5-10400 offers better multitasking capabilities with more cores, while the Intel BX80677I77700K is a cost-effective option for single-threaded performance. Choose based on your specific needs.

Why Intel BX80677I77700K 7th Gen Pentium Desktop Processor is better

Price

BX80677I77700K is cheaper by about $18.

Overclocking

BX80677I77700K has an unlocked multiplier.

Single-threaded

BX80677I77700K excels in single-threaded tasks.

Why Intel Core i5-10400 Desktop Processor 6 Cores up is better

Cores

i5-10400 has 6 cores compared to 4.

Threads

i5-10400 supports 12 threads.

Cooling

i5-10400 includes a cooler in the box.

Overall score

Intel BX80677I77700K 7th Gen Pentium Desktop Processor
75
Intel Core i5-10400 Desktop Processor 6 Cores up
85

Specifications

SpecIntel BX80677I77700K 7th Gen Pentium Desktop ProcessorIntel Core i5-10400 Desktop Processor 6 Cores up
Base Frequency4.2 GHz2.9 GHz
Max Turbo4.5 GHz4.3 GHz
Cores46
Threads812
TDPUnknown65W

Dimension comparison

Intel BX80677I77700K 7th Gen Pentium Desktop ProcessorIntel Core i5-10400 Desktop Processor 6 Cores up

Introduction to the Processors

When it comes to choosing a desktop processor, the Intel BX80677I77700K and the Intel Core i5-10400 present two distinct options catering to different needs. The BX80677I77700K is priced at $186.69, while the Core i5-10400 is slightly more expensive at $205.13, making it about 10% pricier. Each processor offers unique features that appeal to various users, from gamers to productivity enthusiasts.

Performance Comparison

The Intel BX80677I77700K features 4 cores and 8 threads, with a base frequency of 4.2 GHz and a max turbo frequency of 4.5 GHz. In contrast, the Intel Core i5-10400 boasts 6 cores and 12 threads, reaching up to 4.3 GHz. This difference in core count gives the i5-10400 an edge in multitasking and applications that can leverage multiple threads. For users focused on intense gaming or heavy multitasking, the additional cores of the i5-10400 may provide a significant performance advantage.

Compatibility and Motherboard Support

Compatibility is pivotal in choosing a desktop processor, and both the Intel BX80677I77700K and the Intel Core i5-10400 have specific motherboard requirements. The BX80677I77700K is compatible only with Intel 100 or 200 series chipsets, while the i5-10400 is designed for Intel 400 series chipset motherboards. Users upgrading their systems should consider their current motherboard; if it supports the i5-10400, it may influence their decision due to broader compatibility with newer technologies.

Thermal Design and Cooling Solutions

The thermal design power (TDP) is crucial for understanding a processor's cooling needs. The Intel BX80677I77700K has a higher TDP than the Intel Core i5-10400. The i5-10400 operates at 65W, which typically allows for more efficient cooling solutions. Notably, the i5-10400 comes with a cooler included in the box, simplifying the installation process for users. This feature may be particularly appealing to first-time builders who prefer an all-in-one solution.

Integrated Graphics Capabilities

Integrated graphics can be an essential factor for users who do not plan to invest in a dedicated graphics card. The Intel BX80677I77700K includes Intel UHD Graphics 630, while the Intel Core i5-10400 also supports Intel Optane Memory, enhancing its performance further. The integrated graphics of both processors are suitable for everyday tasks and light gaming; however, those looking for higher graphical performance should consider a dedicated GPU.

Pricing and Value Proposition

The Intel BX80677I77700K is currently priced at $186.69, while the Intel Core i5-10400 costs $205.13. This price difference of about $18.44 means that the BX80677I77700K is roughly 10% less expensive. However, the value proposition isn't solely based on price; the additional cores and threads of the i5-10400 may justify the extra cost for users prioritizing performance in multi-threaded applications.

Ideal Use Cases

The ideal use cases for these processors differ significantly. The Intel BX80677I77700K is well-suited for users who prefer gaming or applications that rely on single-threaded performance. Its unlocked multiplier allows for overclocking, which can draw in enthusiasts looking to push their systems to the limit. Conversely, the Intel Core i5-10400 is optimized for gaming, content creation, and productivity tasks, making it a versatile choice for users who need a balanced processor for various workloads.

Which should you buy?

In the battle between the Intel BX80677I77700K and the Intel Core i5-10400, the decision ultimately depends on your specific needs and budget. If you are looking for a cost-effective option with decent performance for gaming, the BX80677I77700K is a solid choice at $186.69. However, if you value additional cores and the potential for greater multitasking capabilities, the Intel Core i5-10400, priced at $205.13, may be worth the investment. Assessing your intended use, motherboard compatibility, and whether you need a cooler included will guide you in making the best decision for your setup.