Intel Core Ultra 5 325 vs AMD Ryzen AI 5 435: Eight Cores vs Twelve Threads

The Intel Core Ultra 5 325 and AMD Ryzen AI 5 435 hold similar positions in today's ultra-thin laptops, but they are structured quite differently. Intel offers eight physical cores without Hyper-Threading, while AMD has six cores with support for twelve threads. In terms of thread count, the Ryzen looks more convincing; however, early tests often see the Core Ultra coming out on top-not only in CPU performance but also in integrated graphics.

This is not a landslide; the difference between the chips typically hovers around 10%. However, at the same price point, Intel appears to be the more balanced option, while AMD is primarily chosen for its inclusion in more economically favorable laptop models.

Eight Physical Cores vs SMT

The Core Ultra 5 325 features four performance cores and four efficiency cores. All eight handle one thread each, resulting in a configuration of 8 cores and 8 threads. The power-efficient cores belong to the Low Power E-core class and take care of background tasks under light loads.

The Ryzen AI 5 435 consists of two full-size Zen 5 cores and four compact Zen 5c cores. Thanks to SMT, each core can handle two threads, allowing the six-core processor to process up to twelve threads simultaneously.

On paper, AMD has more threads and slightly faster memory. Intel counters with a greater number of physical cores and an increased third-level cache. Initial results indicate that this approach outperforms what one might assume based solely on specifications.

Performance: Intel Often Ahead

In Cinebench 2024, the Core Ultra 5 325 outperforms the Ryzen AI 5 435 by about 9% in both single-threaded and multi-threaded loads. In Geekbench 6, the difference on a single core nearly disappears, but when all cores are loaded, Intel pulls ahead again by approximately 11%.

The results have thus far been collected from a limited number of laptops and do not represent a direct comparison within the same chassis. Power limits and cooling significantly affect mobile processor speeds. Nevertheless, the overarching trend is emerging: additional threads from AMD do not provide a noticeable advantage for Ryzen, while Intel's eight physical cores are often faster.

In browsing, office applications, and everyday work, the difference is difficult to notice. It will manifest during tasks like compiling, batch processing of photos, and video conversion, which are more demanding.

Integrated Graphics: Radeon No Longer Guarantees Victory

The Core Ultra 5 325 features next-generation Intel integrated graphics with four Xe3 cores. Ryzen AI 5 435 is equipped with a Radeon 840M with four compute units.

While the name Radeon may sound more convincing, the 840M occupies an entry-level position in AMD's lineup. According to initial results, four-core Xe3 graphics is slightly faster on average.

Both systems are suitable for:

• Undemanding online games;
• Older titles at 1080p resolution;
• Modern games at low settings utilizing scaling;
• Photo editing and hardware-accelerated video work.

For heavy gaming, the capabilities of both integrated graphics are insufficient. However, among these two solutions, the advantage goes to Intel: the Core Ultra 5 325 is faster not only in CPU tests but also in graphical performance.

NPU: Three Additional TOPS Don't Make a Difference

The Ryzen AI 5 435 includes a neural processing unit with a performance of up to 50 TOPS, while the Core Ultra 5 325 offers 47 TOPS.

Formally, AMD is about 6% faster, but this provides almost no practical advantage. Both chips meet the requirements for contemporary localized AI functions, and the speed of a specific task largely depends on NPU support from the application.

It doesn't make sense to pay extra for Ryzen just for the additional 3 TOPS.

Factors Not Dependent on the Processor

AMD supports faster LPDDR5X-8000 memory and up to 256 GB of RAM. Intel is limited to LPDDR5X-7467 and 128 GB, but it offers PCIe 5.0 and native Thunderbolt 4 support.

In most typical laptops, these differences will remain theoretical. Models featuring the Core Ultra 5 325 and Ryzen AI 5 435 are often equipped with 16 or 32 GB of memory, and the port selection depends on the device manufacturer.

The same applies to battery life. Intel has a slightly lower rated power, but these figures alone cannot determine which laptop will last longer. The screen, battery, firmware, and power settings influence the result more significantly than the difference between 25 and 28 watts in specifications.

Therefore, when choosing, it's essential to check:

• Memory volume and operating mode;
• Sustained performance under load;
• Temperature and noise levels;
• Battery capacity;
• Port selection and USB-C charging options.

Which Processor Is Better

Choose the Core Ultra 5 325 if laptops are priced the same and are comparable in screen, memory, and battery. Intel is faster in most CPU tests, slightly stronger in integrated graphics, and offers a more modern set of interfaces.

It makes sense to consider the Ryzen AI 5 435 if the model with it is significantly cheaper or better equipped. Its twelve threads, support for LPDDR5X-8000, and 50 TOPS NPU remain commendable features, but they do not offset Intel's advantage in tests.

Conclusion

The Core Ultra 5 325 wins this comparison. Eight physical cores without Hyper-Threading are about 8-11% faster than the Ryzen AI 5 435 in multi-threaded tasks, and the integrated Xe3 graphics further bolster Intel's position.

The Ryzen AI 5 435 is not critically behind and remains a viable option for a thin laptop. However, at the same price and comparable quality of devices, the Core Ultra 5 325 is preferable. AMD should be chosen when the laptop with Ryzen is cheaper, lasts longer on battery, or offers a better screen and configuration.