High-performance CPUs for laptops have long been the near-exclusive stomping grounds of chip giant Intel, but that’s been changing over the past year. At CES 2021, AMD teased a total of 13 new chip variants that will join the Ryzen 5000 series this year to power laptops of all types: U-series chips for thin-and-light laptops, and HX-, HS-, and H-series chips for more power-minded models.

Among them is a new flagship processor for thin laptops, the Ryzen 7 5800U, which has eight cores and 16 threads, making it the first eight-core chip for slim machines. AMD says it posts a 7% to 44% performance increase against Intel’s competing “Tiger Lake” Core i7-1185G7 chip. Meanwhile, the new Ryzen 9 5980HX has a 4.8GHz boost clock speed and is intended for beefy, powerful gaming laptops. AMD expects that more than 150 laptop models will feature Ryzen 5000 chips, up 50% from the last-generation Ryzen 4000 family.[2]

Figure 1. AMD Ryzen 5000 “Cezanne” Mobile CPUs

Figure 1 shows it has been a year since AMD launched its previous generation Ryzen Mobile processors. At the time, the update from Zen to Zen 2, as well as moving to TSMC’s 7nm manufacturing process, gave the company the biggest boost in its notebook performance and battery life in AMD’s history. It’s difficult to reinvent the wheel again, but AMD is hoping that its new Ryzen 5000 Mobile processors build on the momentum that started last year. The new processor line-up has 13 new models, targeting the traditional U series and H series markets, as well as a couple of new areas AMD is looking to expand into. [1]

Fast of the mobile Ryzen 5000 chips:

Geekbench results (see links that follow) add to the circumstantial evidence that these chips exist, with entries for a Lenovo PC with the Ryzen 5800H and 5800U, and an HP laptop with a 5700U. Geekbench entries should be taken with a grain of salt, as they could be falsified. Some data, such as the GPU speeds, haven’t been unearthed. [3]

CPUs will be in the mobile Ryzen 5000 family

Based on leaks and other reports, there are six Ryzen 5xxxU chips and four Ryzen 5000 H-series chips forthcoming, versus last year’s five Ryzen 4000 U-series chips and just two H-series chips.

• Ryzen 7 5800U (Zen 3): 8 cores/16 threads; 1.8GHz base/4.40GHz boost; 8 CUs
• Ryzen 7 5700U (Zen 2): 8 cores/16 threads; 1.8GHz base/4.3GHz boost; 8 CUs
• Ryzen 5 5600U (Zen 3): 6 cores/12 threads; 2.3GHz base/4.3GHz boost; 7 CUs
• Ryzen 3 5400U (Zen 3): 4 cores/8 threads; 2.6GHz base/4.0GHz boost; 6 CUs

The most powerful gaming laptops will, of course, be based on the H-series parts, with 35W to 45W power envelopes. AMD’s mobile Ryzen 4000 series offered just two H-series. If the Ryzen 5000 rumors are accurate, AMD will offer two H-series parts as well as more powerful -HS and -HX options. They will all be part of the Cezanne/Zen 3 family.

• Ryzen 9 5900HX: 8 cores/16 threads; 3.3GHz base/4.6GHz boost; 8 CUs
• Ryzen 9 5900HS: 8 cores/16 threads; 3.1GHz base/4.5GHz boost; 8 CUs
• Ryzen 7 5800H: 8 cores/16 threads; 3.2GHz base/???GHz boost; 8 CUs
• Ryzen 5 5600H: 6 cores/ 12 threads; 3.0GHz base/4.1GHz boost; [3]

References:

1. https://www.anandtech.com/show/16405/amd-launches-ryzen-5000-mobile-zen-3-and-cezanne-for-notebooks
2. https://in.pcmag.com/news/140240/techx-awards-the-most-innovative-products-and-technologies-of-ces-2021
3. https://www.pcworld.com/article/393797/amd-mobile-ryzen-5000-rumors-say-zen-2-and-zen-3-will-be-mixed.html

Cite this article:

Thanusri swetha J (2021), AMD Ryzen 5000 “Cezanne” Mobile CPUs, pp. 15