Choosing the right CPU can be a daunting task, especially when comparing two powerful processors from the same generation. Today, we’re diving deep into a classic showdown: the Intel Core i7-4790K versus the Intel Core i7-4820K.
Both CPUs have carved out a significant place in PC building history, offering robust performance for gaming, content creation, and multitasking. But as technology marches on, understanding their core differences and how they stack up against each other is crucial for anyone looking to maximize their system’s potential.
We’ll break down their specifications, benchmark results, and overall value proposition. Whether you’re upgrading an older system or building a new one, this comparison will help you make an informed decision between these two formidable Intel processors.
Specs at a Glance
| Feature | i7 4790k | 4820k |
|---|---|---|
| Architecture | Haswell | Ivy Bridge-E |
| Socket | LGA 1150 | LGA 2011 |
| Cores | 4 | 4 |
| Threads | 8 | 8 |
| Base Clock | 4.0 GHz | 3.7 GHz |
| Boost Clock | 4.4 GHz | 3.9 GHz |
| TDP | 84W | 130W |
| Integrated Graphics | Intel HD Graphics 4600 | None |
| Cache | 8MB L3 | 10MB L3 |
| Memory Support | DDR3 | DDR3 |
| PCIe Lanes | 16 | 40 |
| Manufacturing Process | 22nm | 22nm |
Feature-by-Feature Breakdown
Core Count & Threads
- I7 4790k: Features 4 cores and 8 threads. This is a standard configuration for high-end consumer CPUs of its generation, offering good multitasking capabilities and performance in most applications.
- 4820k: Also features 4 cores and 8 threads. While the core and thread count is the same, its architecture and clock speeds may offer slight differences in certain scenarios.
- Winner: Tie
Clock Speed (Base & Boost)
- I7 4790k: Boasts a base clock of 4.0 GHz and a boost clock of up to 4.4 GHz. This higher clock speed generally translates to better single-core performance and responsiveness in everyday tasks and games.
- 4820k: Comes with a base clock of 3.7 GHz and a boost clock of up to 3.9 GHz. While respectable, it is lower than the 4790k, which can impact performance in clock-speed-sensitive applications.
- Winner: i7 4790k
Integrated Graphics
- I7 4790k: Includes Intel HD Graphics 4600. This provides basic graphical capabilities for display output and light tasks, but is not suitable for serious gaming or demanding visual workloads.
- 4820k: Lacks integrated graphics. This means a dedicated graphics card is absolutely required for any display output, making it less versatile for users who don’t immediately plan on using a discrete GPU.
- Winner: i7 4790k
TDP (Thermal Design Power)
- I7 4790k: Has a TDP of 84W. This indicates a moderate power draw and heat output, requiring a capable cooler for optimal performance, especially when overclocked.
- 4820k: Features a TDP of 130W. This higher TDP suggests it can consume more power and generate more heat, necessitating a more robust cooling solution to maintain stability and prevent thermal throttling.
- Winner: i7 4790k
Socket & Chipset Compatibility
- I7 4790k: Uses the LGA 1150 socket, commonly found on Z87 and Z97 chipsets. This offers a wide range of motherboard options for the Haswell generation.
- 4820k: Utilizes the LGA 2011 socket, typically paired with X79 chipsets. This platform was geared towards enthusiasts and workstations, offering more PCIe lanes and memory channels.
- Winner: Tie
Overclocking Potential
- I7 4790k: Is a “K” sku, meaning it is unlocked for overclocking. Its architecture is generally well-suited for pushing clock speeds higher, offering significant performance gains for enthusiasts.
- 4820k: Also a “K” sku and unlocked for overclocking. Being on the enthusiast platform, it often exhibits excellent overclocking headroom, especially concerning memory and multi-core performance.
- Winner: Tie
Memory Support
- I7 4790k: Supports DDR3 memory, typically up to 1600MHz officially, though higher speeds are often achievable with overclocking. It uses a dual-channel memory controller.
- 4820k: Supports DDR3 memory, often at higher speeds than the 4790k out of the box, and crucially, features a quad-channel memory controller. This provides significantly higher memory bandwidth, beneficial for memory-intensive tasks.
- Winner: 4820k
Target Market & Use Case
- I7 4790k: Primarily targeted at high-end gaming and general desktop use. Its strong single-core performance and integrated graphics make it a versatile choice for a broad consumer audience.
- 4820k: Geared towards workstations, content creation, and enthusiast users who require higher memory bandwidth and more robust platform features. It excels in scenarios where heavy multitasking and memory throughput are critical.
- Winner: Tie
Winner by Category
| Category | Winner |
|---|---|
| Out-of-the-Box Clock Speed | i7 4790k |
| Integrated Graphics | i7 4790k |
| PCIe Lane Count | 4820k |
| L3 Cache | 4820k |
| Power Efficiency (TDP) | i7 4790k |
| Platform Flexibility (PCIe) | 4820k |
| Gaming Performance (General) | i7 4790k |
| Workstation/Multi-GPU Performance | 4820k |
What They Have in Common
- Core and Thread Count: Both processors feature 4 cores and 8 threads, providing a solid foundation for multitasking and demanding applications. This similar core configuration means they can handle many of the same workloads with comparable parallel processing capabilities.
- Architecture Generation: While from different families (Haswell vs. Ivy Bridge-E), both are relatively modern architectures for their time, offering improvements in instruction per clock (IPC) over older generations. This contributes to their overall performance efficiency.
- Manufacturing Process: Both CPUs are manufactured on a 22nm process node. This indicates a similar level of miniaturization and power efficiency potential at the transistor level, though actual power consumption can vary due to other factors.
- Ddr3 Memory Support: Both processors utilize DDR3 memory. This means users looking to upgrade or build with these CPUs will be using the same generation of RAM technology, simplifying memory choices.
- Overclocking Potential: Both the i7-4790K and the i7-4820K are unlocked processors, meaning they are designed for overclocking. Enthusiasts can push these CPUs beyond their stock frequencies to achieve higher performance levels.
I7 4790K Vs 4820K Buying Guide
Target Audience & Use Case
The i7-4790K is generally the superior choice for gamers and users who prioritize single-core performance and higher clock speeds out-of-the-box. Its “Devil’s Canyon” architecture brought significant improvements in thermal performance and overclocking potential compared to its predecessors.
Conversely, the i7-4820K, while still a capable processor, is better suited for users who might benefit from its additional PCI Express lanes for multi-GPU setups or specific workstation tasks. Its slightly lower clock speed is offset by its platform flexibility for certain advanced configurations. (See Also: Demeyere 5 Plus Vs Atlantis )
Overclocking Potential & Thermal Management
Both processors are unlocked for overclocking, but the i7-4790K often exhibits slightly better thermal management thanks to its improved thermal interface material (TIM) and overall design refinements. This can lead to more stable overclocks and potentially higher achievable frequencies.
While the i7-4820K can also be overclocked effectively, users might find it requires more robust cooling solutions to achieve similar results to the 4790K, especially when pushing for extreme frequencies. Careful consideration of your cooling setup is paramount for both.
Platform & Motherboard Considerations
The i7-4790K utilizes the LGA 1150 socket, a mainstream platform with a wide variety of motherboards available. These boards often offer a good balance of features and price, making them accessible for most users.
The i7-4820K, on the other hand, uses the LGA 2011 socket, which is part of Intel’s high-end desktop (HEDT) platform. This platform typically offers more robust power delivery, more RAM slots, and crucially, more PCI Express lanes, which is a key differentiator for specific build types. (See Also: Nikon 50 1 8 Vs 1 4 )
Price & Availability Today
Given their age, both processors are primarily available on the used market. The i7-4790K, being more mainstream, might have slightly better availability and potentially lower prices on average. However, this can fluctuate based on demand.
The i7-4820K, belonging to the HEDT platform, might be harder to find and could command a slightly higher price, especially if bundled with compatible motherboards. It’s essential to compare prices from various used marketplaces and factor in the condition of the components.
Who Should Buy What?
Buy i7 4790k If…
- You prioritize higher clock speeds out of the box for gaming and general desktop use.
- You want integrated graphics for basic display output without a dedicated GPU.
- You are building a mainstream gaming or productivity rig on the LGA 1150 platform.
- You are looking for a slightly more power-efficient CPU for everyday tasks.
Buy 4820k If…
- You need more PCIe lanes for multiple GPUs or high-bandwidth expansion cards.
- You are building a workstation or extreme gaming rig that benefits from more motherboard connectivity.
- You are comfortable with a higher TDP and potentially more robust cooling solutions.
- You value the larger L3 cache for specific professional applications or memory-intensive tasks.
Frequently Asked Questions
Which processor is better for gaming?
For gaming, the i7-4790K is generally the preferred choice. Its higher clock speeds and superior single-core performance translate directly to better frame rates in most games. While the 4820K is still capable, the 4790K offers a more immediate and noticeable boost in gaming scenarios, especially when paired with a powerful graphics card.
Can I use either CPU for video editing or content creation?
Both CPUs can handle moderate video editing and content creation tasks. However, if your workflow heavily relies on multi-threaded applications or specific professional software that can leverage more cores, the 4820K’s platform flexibility and potential for more RAM might offer a slight advantage in certain scenarios. For general productivity, the 4790K is still very competent. (See Also: Samsung Pro Vs Evo 850 )
Which platform offers better future-proofing?
Neither platform offers significant future-proofing in today’s market, as both are several generations old. However, the LGA 2011 platform associated with the 4820K was designed for higher-end configurations, offering more PCIe lanes and RAM capacity, which could be marginally more beneficial for very specific, niche upgrades if you were to stay on that platform.
What are the key differences in their architecture?
The i7-4790K is a Haswell Refresh processor, featuring the LGA 1150 socket. It boasts higher clock speeds and improved thermal performance. The i7-4820K is a Sandy Bridge-E processor on the LGA 2011 socket, part of Intel’s HEDT platform. The main architectural difference lies in the platform’s capabilities, particularly the increased PCIe lanes and memory support on LGA 2011.
Is it worth upgrading from an older CPU to either of these?
Upgrading to either the i7-4790K or i7-4820K from a significantly older CPU (e.g., Core 2 Duo or early i3/i5) would represent a substantial performance leap. However, if you’re considering these for a modern build, it’s generally more advisable to invest in newer CPU generations for better performance, efficiency, and access to modern features and technologies.
Final Verdict
For the vast majority of users, especially gamers, the i7-4790K stands out as the superior choice due to its higher clock speeds and superior single-core performance, delivering a smoother and more responsive experience in everyday tasks and demanding applications. While the 4820K offers platform advantages like more PCIe lanes, these are niche benefits.
Winner: i7 4790K