Compare CPUs Head-to-Head. Make the Right Choice.

Intel Core i7 1255U vs Intel Core i9 9900KS: The Ultimate Showdown in CPU Performance!

Quick Overview

  • The Core i9-9900KS, on the other hand, consumes significantly more power with a TDP of 95W, making it more suitable for desktop PCs with robust cooling solutions.
  • Ultimately, the choice between the Intel Core i7-1255U and the Intel Core i9-9900KS boils down to your individual needs and priorities.
  • While the Intel Core i9-9900KS is a powerful processor, its older architecture and high power consumption make it less future-proof.

Choosing the right CPU for your needs can be a daunting task, especially when faced with a vast array of options. Today, we’re diving into the heart of this dilemma by comparing two powerhouse processors: the Intel Core i7 1255U and the Intel Core i9 9900KS. While these CPUs may seem like distant cousins on the Intel family tree, they offer distinct advantages and cater to different user profiles. This comprehensive analysis will help you understand the strengths and weaknesses of each processor, empowering you to make an informed decision.

The Contenders: A Glimpse into the Specs

Before we delve into the nitty-gritty, let’s get a quick overview of the key specifications that define these CPUs:
Intel Core i7-1255U:

  • Architecture: Alder Lake-U
  • Cores: 10 (2 Performance, 8 Efficiency)
  • Threads: 12
  • Base Clock Speed: 1.7 GHz
  • Boost Clock Speed: 4.7 GHz
  • Cache: 18 MB L3
  • TDP: 15W (up to 29W)
  • Integrated Graphics: Intel Iris Xe Graphics

Intel Core i9-9900KS:

  • Architecture: Coffee Lake Refresh
  • Cores: 8
  • Threads: 16
  • Base Clock Speed: 4.0 GHz
  • Boost Clock Speed: 5.0 GHz
  • Cache: 16 MB L3
  • TDP: 95W
  • Integrated Graphics: Intel UHD Graphics 630

Performance: A Tale of Two Architectures

The Intel Core i7-1255U boasts the latest Alder Lake architecture, featuring a hybrid design with both performance and efficiency cores. This approach allows for optimized power consumption and multitasking capabilities. In contrast, the Intel Core i9-9900KS is built on the older Coffee Lake Refresh architecture, relying solely on high-performance cores.
Benchmarks and Real-World Performance:
While the Core i9-9900KS shines in single-core performance, particularly with its 5.0 GHz boost clock, the Core i7-1255U excels in multi-threaded tasks. Its hybrid architecture, combined with a higher core count, allows it to handle demanding workloads like video editing, 3D rendering, and multitasking with greater efficiency.
Gaming Performance:
For gamers, the Core i9-9900KS offers a slight edge due to its higher clock speed and dedicated performance cores. However, the Core i7-1255U can still deliver a smooth gaming experience, especially in less demanding titles.

Power Consumption and Efficiency: A Balancing Act

The Intel Core i7-1255U is designed for energy efficiency, boasting a low TDP of 15W. This makes it ideal for thin and light laptops, where battery life is a crucial factor. The Core i9-9900KS, on the other hand, consumes significantly more power with a TDP of 95W, making it more suitable for desktop PCs with robust cooling solutions.

Price Point: A Matter of Value

When it comes to pricing, the Intel Core i7-1255U is typically more affordable than the Intel Core i9-9900KS. This makes it a compelling choice for budget-conscious consumers who prioritize value for money.

Use Case Scenarios: Choosing the Right Weapon

Intel Core i7-1255U:

  • Ultrabooks and Thin & Light Laptops: The low power consumption and efficient performance make it ideal for portable devices.
  • Everyday Computing: Browsing, email, document editing, and light gaming are handled with ease.
  • Multitasking: The hybrid architecture allows for smooth multitasking, even with several applications running concurrently.
  • Content Creation (Light): Basic video editing and photo editing are manageable.

Intel Core i9-9900KS:

  • Desktop PCs: The high power consumption requires a robust cooling system, making it suitable for desktop setups.
  • Gaming (High-End): The high clock speed provides an edge in demanding games.
  • Content Creation (Heavy): Video editing, 3D rendering, and other resource-intensive tasks benefit from the powerful performance.
  • Overclocking: The unlocked multiplier allows for overclocking to push performance limits.

The Verdict: A Matter of Priorities

Ultimately, the choice between the Intel Core i7-1255U and the Intel Core i9-9900KS boils down to your individual needs and priorities. If you prioritize portability, efficiency, and value for money, the Intel Core i7-1255U is a compelling option. However, if you demand raw performance, especially for gaming and demanding workloads, the Intel Core i9-9900KS might be the better choice.

The Future is Now: A Look Ahead

The Intel Core i7-1255U represents the future of mobile computing, with its hybrid architecture and focus on efficiency. While the Intel Core i9-9900KS is a powerful processor, its older architecture and high power consumption make it less future-proof. As technology advances, we can expect to see even more powerful and efficient CPUs emerge, further blurring the lines between performance and power consumption.

Questions You May Have

Q: Is the Intel Core i7-1255U good for gaming?
A: The Intel Core i7-1255U can deliver a smooth gaming experience, especially in less demanding titles. For high-end gaming, the Intel Core i9-9900KS might be a better choice.
Q: Which CPU is better for video editing?
A: For basic video editing, the Intel Core i7-1255U is sufficient. However, for demanding video editing workflows, the Intel Core i9-9900KS offers more power and performance.
Q: Is the Intel Core i7-1255U good for multitasking?
A: Yes, the Intel Core i7-1255U excels in multitasking thanks to its hybrid architecture and higher core count.
Q: Which CPU is more energy efficient?
A: The Intel Core i7-1255U is significantly more energy efficient than the Intel Core i9-9900KS, making it ideal for portable devices.
Q: Should I buy the Intel Core i7-1255U or the Intel Core i9-9900KS?
A: The best choice depends on your specific needs and priorities. If you prioritize portability, efficiency, and value for money, the Intel Core i7-1255U is a compelling option. However, if you demand raw performance, particularly for gaming and demanding workloads, the Intel Core i9-9900KS might be the better choice.

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About the Author
Ethan is a passionate tech enthusiast and writer at Processor Insight, where he dives into the intricacies of CPUs, providing comprehensive comparison guides, insightful knowledge, and practical tips to help readers make informed decisions.