AMD Ryzen 9 7845HX vs Intel Core Ultra 7 155H: Which CPU Reigns Supreme?

The battle for CPU supremacy continues to rage on, with AMD and Intel constantly pushing the boundaries of performance. In the high-performance laptop market, two titans have emerged: the AMD Ryzen 9 7845HX and the Intel Core Ultra 7 155H. Both processors boast impressive specifications, promising exceptional performance for demanding tasks like gaming, content creation, and multitasking.
This comprehensive comparison will delve into the intricacies of these two CPUs, analyzing their core features, performance benchmarks, and real-world applications. By the end of this article, you’ll have a clear understanding of which CPU best suits your specific needs and budget.

Architecture and Core Count: A Tale of Two Designs

The AMD Ryzen 9 7845HX and the Intel Core Ultra 7 155H take different approaches to CPU design. The AMD Ryzen 9 7845HX is built upon the Zen 4 architecture, boasting 16 cores and 32 threads. This high core count is ideal for multitasking and demanding applications that can benefit from parallel processing.
In contrast, the Intel Core Ultra 7 155H utilizes the Raptor Lake architecture and features 14 cores (6 performance cores and 8 efficiency cores) with 20 threads. While it has fewer cores than the Ryzen 9 7845HX, Intel’s hybrid architecture focuses on optimizing performance for both demanding and everyday tasks.

Clock Speeds and Boost Frequencies: The Race for Speed

Both CPUs offer impressive clock speeds, but there are subtle differences. The AMD Ryzen 9 7845HX has a base clock speed of 3.0 GHz and a boost clock speed of 5.0 GHz. This translates to rapid processing power, especially when demanding tasks require maximum performance.
The Intel Core Ultra 7 155H has a base clock speed of 2.2 GHz and a boost clock speed of 4.8 GHz. While its base clock speed is lower, the Core Ultra 7 155H’s boost clock speed is still very competitive. It’s worth noting that the Intel Core Ultra 7 155H’s performance cores can reach higher boost frequencies than its efficiency cores, further enhancing its overall performance.

Performance Benchmarks: Putting the CPUs to the Test

Benchmarking tests provide valuable insights into the real-world performance of these CPUs. In synthetic benchmarks, the AMD Ryzen 9 7845HX often outperforms the Intel Core Ultra 7 155H in multi-core performance, thanks to its higher core count. This translates to faster rendering times in video editing software, quicker compilation speeds in software development, and smoother multitasking experiences.
However, the Intel Core Ultra 7 155H tends to excel in single-core performance. This advantage shines in applications like gaming, where the performance of a single core can significantly impact frame rates. In real-world gaming scenarios, the Intel Core Ultra 7 155H often delivers slightly higher frame rates compared to the AMD Ryzen 9 7845HX, especially in demanding games.

Power Consumption and Thermal Management: Efficiency Matters

Both CPUs are designed to be efficient and manage heat effectively. The AMD Ryzen 9 7845HX utilizes a 55W TDP (Thermal Design Power), while the Intel Core Ultra 7 155H has a 45W TDP. This difference in TDP reflects the different architectural approaches of the two CPUs, with AMD favoring higher performance and Intel prioritizing power efficiency.
In terms of thermal management, both CPUs benefit from advanced cooling technologies. The Ryzen 9 7845HX features AMD’s Precision Boost 2 technology, which dynamically adjusts clock speeds to maintain optimal performance while minimizing heat generation. Similarly, the Core Ultra 7 155H utilizes Intel‘s Thermal Velocity Boost, which can temporarily boost clock speeds for short bursts of intense workload.

Integrated Graphics: A Comparison of iGPU Performance

Both CPUs integrate graphics processing units (GPUs) into their designs, offering a convenient solution for basic tasks like web browsing and casual gaming. The AMD Ryzen 9 7845HX features the Radeon 780M iGPU, while the Intel Core Ultra 7 155H utilizes the Intel Iris Xe Graphics.
In terms of performance, the Radeon 780M iGPU generally outperforms the Intel Iris Xe Graphics. This difference is particularly noticeable in demanding games, where the Radeon 780M iGPU can deliver smoother frame rates and better overall visuals. However, for basic tasks and casual gaming, both iGPUs are capable of providing a satisfactory experience.

Price and Availability: Finding the Best Value

The AMD Ryzen 9 7845HX and the Intel Core Ultra 7 155H are typically found in high-end laptops, reflecting their premium performance capabilities. The price of these CPUs can vary depending on the specific laptop model and configuration. However, in general, the AMD Ryzen 9 7845HX tends to be slightly more expensive than the Intel Core Ultra 7 155H.

Which CPU is Right for You?

The choice between the AMD Ryzen 9 7845HX and the Intel Core Ultra 7 155H ultimately depends on your individual needs and priorities.
Choose the AMD Ryzen 9 7845HX if:

• You prioritize multi-core performance and need a CPU that can handle demanding workloads like video editing, software development, and intensive multitasking.
• You’re willing to pay a premium for top-of-the-line performance.

Choose the Intel Core Ultra 7 155H if:

• You prioritize single-core performance and want a CPU that excels in gaming.
• You’re looking for a more power-efficient CPU that can deliver exceptional performance without excessive heat generation.
• You’re on a slightly tighter budget.

The Final Verdict: A Battle for the Crown

The AMD Ryzen 9 7845HX and the Intel Core Ultra 7 155H are both exceptional CPUs that offer impressive performance for demanding workloads. The AMD Ryzen 9 7845HX reigns supreme in multi-core performance, making it ideal for multitasking and demanding applications. Meanwhile, the Intel Core Ultra 7 155H excels in single-core performance, making it a better choice for gamers and users who prioritize power efficiency.
Ultimately, the best CPU for you depends on your specific needs and priorities. Carefully consider your intended use cases and budget to make an informed decision.

Answers to Your Most Common Questions

Q: Is the AMD Ryzen 9 7845HX better than the Intel Core Ultra 7 155H for gaming?
A: While the AMD Ryzen 9 7845HX offers excellent multi-core performance, the Intel Core Ultra 7 155H tends to deliver slightly higher frame rates in gaming due to its superior single-core performance.
Q: Which CPU is more power-efficient?
A: The Intel Core Ultra 7 155H is generally more power-efficient than the AMD Ryzen 9 7845HX, thanks to its lower TDP and optimized hybrid architecture.
Q: Which CPU is better for video editing?
A: The AMD Ryzen 9 7845HX’s higher core count and multi-core performance make it a better choice for video editing, as it can handle complex rendering tasks more efficiently.
Q: Which CPU is better for multitasking?
A: The AMD Ryzen 9 7845HX’s 16 cores and 32 threads provide superior multitasking capabilities compared to the Intel Core Ultra 7 155H’s 14 cores and 20 threads.
Q: What is the difference between the AMD Ryzen 9 7845HX and the Intel Core Ultra 7 155H in terms of price?
A: The AMD Ryzen 9 7845HX is typically slightly more expensive than the Intel Core Ultra 7 155H, but the price difference can vary depending on the specific laptop model and configuration.