Ryzen 9 7940HS vs Ryzen 7 8845HS: CPU Face-Off for Laptop Supremacy

When it comes to choosing a powerful laptop, the processor is a pivotal component. AMD’s Ryzen series has consistently delivered impressive performance and efficiency, making them a popular choice for both gamers and professionals. Today, we delve into a detailed comparison between two compelling contenders in AMD’s mobile CPU lineup: the Ryzen 9 7940HS and the Ryzen 7 8845HS. While both processors belong to the high-performance segment and share architectural similarities, understanding their nuances is crucial for making the right decision. This article will provide an in-depth Ryzen 7940hs 8845hs Compare, analyzing their specifications, benchmark results, and overall value to help you determine which CPU reigns supreme for your needs.

Primary Specifications: Ryzen 9 7940HS vs Ryzen 7 8845HS

Let’s begin by examining the core specifications of these two processors. Both the Ryzen 9 7940HS and Ryzen 7 8845HS are designed for laptops and are based on AMD’s Zen 4 architecture. However, there are subtle but significant differences under the hood.

Feature	Ryzen 9 7940HS	Ryzen 7 8845HS
Market Segment	Laptop	Laptop
Architecture Codename	Phoenix-HS (Zen 4)	Hawk Point-HS (Zen 4)
Release Date	January 2023	December 6, 2023
Cores/Threads	8 cores / 16 threads	8 cores / 16 threads
Base Clock Speed	4 GHz	3.8 GHz
Boost Clock Speed	5.2 GHz	5.1 GHz
L1 Cache	64 KB per core	64 KB per core
L2 Cache	1 MB per core	1 MB per core
L3 Cache	16 MB (shared)	16 MB (shared)
Lithography	4 nm	4 nm
TDP	35 Watt	45 Watt
Socket	FP8	FP8
Integrated Graphics	AMD Radeon 780M (up to 2800 MHz)	AMD Radeon 780M (up to 2700 MHz)

As you can see, both CPUs are octa-core processors with 16 threads, utilizing the same 4nm lithography and FP8 socket. They also feature the same integrated Radeon 780M graphics. The key distinctions lie in their clock speeds and TDP (Thermal Design Power). The Ryzen 9 7940HS boasts a slightly higher base and boost clock, while the Ryzen 7 8845HS has a higher TDP, suggesting it might be designed for systems with more robust cooling to sustain performance under heavier loads.

AMD Ryzen 9 7940HS High Performance Laptop Processor

Performance Benchmarks: Is Ryzen 9 7940HS Significantly Faster?

To truly understand the performance difference between the Ryzen 9 7940HS and Ryzen 7 8845HS, benchmark data is essential. Synthetic benchmarks provide a standardized way to measure CPU capabilities across various workloads. Let’s examine how these processors stack up in various tests.

Aggregate Performance and Common Benchmarks

According to aggregate benchmark scores, the Ryzen 9 7940HS demonstrates a marginal lead of around 5% over the Ryzen 7 8845HS. This slight advantage is reflected in several popular benchmarks:

Passmark CPU Mark: Ryzen 9 7940HS scores approximately 5.3% higher.
GeekBench 5 Single-Core: Ryzen 9 7940HS shows about a 4.4% performance increase.
GeekBench 5 Multi-Core: The multi-core performance of Ryzen 9 7940HS is roughly 3.9% better.
Cinebench R10 (Single & Multi-Core): Ryzen 9 7940HS consistently outperforms the 8845HS by around 4-5% in these older Cinebench tests.
Cinebench R15 (Single & Multi-Core): Again, Ryzen 9 7940HS maintains a lead of approximately 2-3.5%.

These results indicate that the Ryzen 9 7940HS generally offers slightly better performance in common CPU-intensive tasks.

Specific Workload Benchmarks

Delving deeper, let’s look at benchmarks that simulate specific workloads:

TrueCrypt AES: In encryption tasks, Ryzen 9 7940HS is about 6.3% faster, suggesting a better performance in security-related applications and data handling.
x264 Encoding: In video encoding, the difference is minimal, with Ryzen 9 7940HS only slightly ahead (around 0.3-1.2%). This implies both CPUs are well-suited for video editing and content creation.
7-Zip Compression: Ryzen 9 7940HS shows a notable lead in 7-Zip benchmarks, both single and multi-threaded, indicating faster file compression and decompression speeds.
WebXPRT (3 & 4): For web browsing and web application performance, Ryzen 9 7940HS again shows a small lead of around 3-4%.
CrossMark Overall: In the CrossMark benchmark, which assesses overall system performance across productivity, creativity, and responsiveness, the difference is negligible, suggesting similar real-world usage experiences.
Blender: Interestingly, in some Blender benchmarks, the Ryzen 7 8845HS appears to perform slightly better. This could be due to variations in test conditions or specific optimizations.

AMD Ryzen 7 8845HS Mobile Processor for Gaming Laptops

Gaming Performance: CPU Impact

The original article lacks specific gaming benchmarks. It’s important to note that while the integrated Radeon 780M graphics are identical in both CPUs (with a minor clock speed difference), the CPU itself can influence gaming performance, especially in CPU-bound games or when paired with a dedicated graphics card. A stronger CPU can handle game logic, AI, and physics calculations more efficiently, potentially leading to smoother gameplay and higher frame rates, particularly at lower resolutions or in games that are not heavily GPU-dependent.

However, for most modern games, the difference in gaming performance between Ryzen 9 7940HS and Ryzen 7 8845HS is likely to be minimal due to the small performance delta and the fact that gaming is often more GPU-bound.

Power Efficiency and TDP: A Key Consideration

One significant difference highlighted in the original data is the TDP. The Ryzen 9 7940HS has a lower TDP of 35W compared to the Ryzen 7 8845HS’s 45W. This 10W difference can impact laptop battery life and thermal management.

Battery Life: Laptops with Ryzen 9 7940HS might offer slightly better battery life under CPU-intensive tasks due to its lower power consumption.
Thermal Performance: The lower TDP of Ryzen 9 7940HS could result in cooler operating temperatures and potentially quieter fan noise, especially in thin and light laptops. Conversely, the higher TDP of Ryzen 7 8845HS might allow it to sustain boost clocks for longer durations in systems with adequate cooling.

The power efficiency rating also reflects this difference, with Ryzen 9 7940HS scoring significantly higher (51.21 vs 37.81).

Pros and Cons: Ryzen 9 7940HS vs Ryzen 7 8845HS

To summarize, let’s outline the pros and cons of each processor:

Ryzen 9 7940HS

Pros:

Slightly higher aggregate performance.
Lower TDP, leading to better power efficiency and potentially longer battery life.
Slightly higher base and boost clock speeds.

Cons:

Marginally more expensive (potentially, depending on laptop models).
Performance advantage is minimal in many real-world scenarios.

Ryzen 7 8845HS

Pros:

Excellent performance, very close to Ryzen 9 7940HS.
Potentially more affordable laptops.
Higher TDP could allow for sustained boost clocks in well-cooled systems.

Cons:

Slightly lower aggregate performance compared to Ryzen 9 7940HS.
Higher TDP, potentially impacting battery life and thermal management.

Conclusion: Choosing Between Ryzen 9 7940HS and Ryzen 7 8845HS

In the Ryzen 7940HS 8845HS compare, the performance difference is demonstrably small. The Ryzen 9 7940HS holds a slight edge in benchmarks and power efficiency, while the Ryzen 7 8845HS offers nearly identical performance at potentially a more accessible price point and with a higher TDP design that might be better suited for certain cooling solutions.

For most users, the Ryzen 7 8845HS presents a compelling value proposition. It delivers near-flagship performance for demanding tasks and gaming, and the minor performance difference compared to the 7940HS is unlikely to be noticeable in everyday use.

The Ryzen 9 7940HS might be preferable for users who prioritize ultimate power efficiency and slightly higher performance in specific CPU-intensive workloads, or for those who want the absolute top-tier processor in the Ryzen HS series, even if the real-world gains are marginal.

Ultimately, the best choice depends on your specific needs, budget, and the laptop models available with each processor. Consider the overall laptop configuration, including RAM, storage, and graphics card, as these factors will also significantly impact your experience.

Community Ratings

Here’s how users rate these processors:

4.4 (1059 votes)

Rate Ryzen 9 7940HS on a scale of 1 to 5:

4.3 (953 votes)

Rate Ryzen 7 8845HS on a scale of 1 to 5:

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