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Intel Core i7-3770 Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I73770 vs Intel Pentium 4 651 3.4GHz 800MHz 2MB LGA 775 CPU

Updated August 2026The Intel Core i7-3770 is the superior choice for performance and future-proofing, while the Pentium 4 651 is suitable for basic tasks.

The Intel Core i7-3770 is the superior choice for performance and future-proofing, while the Pentium 4 651 is suitable for basic tasks.

Why Intel Core i7-3770 Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I73770 is better

Cores

Quad-core vs single-core

Cache

8 MB Smart Cache vs smaller cache

Compatibility

LGA 1155 socket vs LGA 775 socket

Why Intel Pentium 4 651 3.4GHz 800MHz 2MB LGA 775 CPU is better

Price

Both priced the same

Basic Tasks

Adequate for simple computing

Brand

Both from Intel

Overall score

Intel Core i7-3770 Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I73770
85
Intel Pentium 4 651 3.4GHz 800MHz 2MB LGA 775 CPU
45

Specifications

SpecIntel Core i7-3770 Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I73770Intel Pentium 4 651 3.4GHz 800MHz 2MB LGA 775 CPU
BrandIntelIntel
Frequency3.4 GHz3.4 GHz
SocketLGA 1155LGA 775
Threads81
TDPUnknownHigher

Dimension comparison

Intel Core i7-3770 Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I73770Intel Pentium 4 651 3.4GHz 800MHz 2MB LGA 775 CPU

Overview of the Processors

When comparing the Intel Core i7-3770 Quad-Core Processor and the Intel Pentium 4 651, there is a significant performance gap to consider. Both processors are from Intel and are priced identically at C$49.99, but their capabilities and intended use cases differ greatly.

The Intel Core i7-3770 features four cores and operates at a base frequency of 3.4 GHz, making it suitable for demanding tasks such as gaming and content creation. On the other hand, the Intel Pentium 4 651, while also clocked at 3.4 GHz, is a single-core processor designed primarily for basic computing tasks. This distinction highlights the i7-3770's superiority in multitasking and more intensive applications.

Processing Power

The Intel Core i7-3770 clearly outperforms the Intel Pentium 4 651 in terms of processing power. The i7-3770's quad-core architecture allows it to handle multiple threads simultaneously, which is crucial for modern applications that require more than one processor core for optimal performance. This design is beneficial for tasks such as video editing and gaming, where multiple processes are running at the same time.

Conversely, the Pentium 4 651, with its single-core design, is limited in its ability to manage concurrent tasks. While it may handle basic operations like web browsing and word processing adequately, it struggles under heavier loads. The i7-3770’s Smart Cache of 8 MB further enhances its efficiency by reducing latency in data access, a feature absent in the older Pentium model.

Intended Usage

In terms of intended usage, the Intel Core i7-3770 is designed for high-performance computing, while the Intel Pentium 4 651 caters to entry-level users. The i7-3770 is an excellent choice for gamers and professionals who require fast processing speeds and the ability to multitask without lag.

In contrast, the Pentium 4 651 serves basic computing needs, making it suitable for users who do not require advanced capabilities. Its performance is adequate for running simple applications but falls short in any demanding scenario. This fundamental difference in target audience is crucial for prospective buyers to consider based on their specific needs.

Memory and Cache Features

Memory and cache features play a vital role in processor performance, and here the Intel Core i7-3770 stands out with its superior architecture. The i7-3770’s 8 MB Smart Cache enables faster data retrieval and processing, significantly improving overall efficiency in multitasking environments. This feature allows the processor to access frequently used data more quickly compared to its competitors.

On the other hand, the Intel Pentium 4 651 has a considerably smaller cache and lacks advanced memory management features. As a result, it is not equipped to handle modern applications that require rapid data access and processing capabilities. This difference in cache size and functionality underscores the i7-3770's advantage in performance-critical scenarios.

Thermal Design and Power Consumption

Thermal design and power consumption are essential factors in evaluating processor performance. While specific thermal design power (TDP) values are not provided in the available data, the Intel Core i7-3770 is known to be more efficient in modern computing environments due to its architectural advancements.

In contrast, the Intel Pentium 4 651, being an older generation processor, typically consumes more power for its performance level, which can lead to higher heat generation and lower overall efficiency. This distinction is critical for users who are concerned about energy efficiency and thermal management in their systems.

Compatibility and Upgradability

Compatibility and upgradability are crucial considerations when choosing a processor. The Intel Core i7-3770 employs the LGA 1155 socket, which is part of a more recent generation of motherboards designed to support advanced features and technologies. This socket allows users to upgrade to other compatible processors in the same family, providing greater flexibility for future improvements.

Conversely, the Intel Pentium 4 651 uses the older LGA 775 socket, which limits its compatibility with newer motherboards and technologies. This restriction may hinder users looking to upgrade their systems in the future, making the i7-3770 a more future-proof investment for those considering a long-term solution.

Price Comparison

Both processors are priced at C$49.99, which may initially seem appealing for budget-conscious buyers. However, it is crucial to evaluate what each processor offers at this price point. The i7-3770, with its advanced features and superior performance capabilities, presents a significantly better value for users who require more from their system.

In contrast, the Pentium 4 651 may attract those with very basic computing needs, but its limitations in performance and future compatibility make it less appealing. Ultimately, the price point does not reflect the substantial difference in capability and technology between these two processors.

Which should you buy?

In summary, while both the Intel Core i7-3770 and the Intel Pentium 4 651 are priced the same at C$49.99, the i7-3770 is undoubtedly the superior choice for most users. With its quad-core design, larger cache, and compatibility with modern technologies, it is more suitable for demanding applications and multitasking. The Pentium 4 651, while adequate for basic tasks, lacks the power and efficiency needed for contemporary computing needs. Therefore, for anyone looking to invest in a capable and future-proof processor, the Intel Core i7-3770 is the clear winner.

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Intel Core i7-3770 Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I73770 vs Intel Pentium 4 651 3.4GHz 800MHz 2MB LGA 775 CPU | versusfinder