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AMD is kicking off the world's biggest consumer tech show by unveiling the third-generation Ryzen 4000-series mobile processors, which will be used in upcoming laptops. A crowd of hundreds lined up for more than an hour before the CES 2020 announcement, filing slowly into the enormous Mandalay Bay Convention Center in Las Vegas to hear details on AMD's new gaming products Monday afternoon.

AT CES 2019, AMD unveiled Radeon 7, the world's first 7-nanometer gaming graphics card. More than 20 products are now using its 7nm architecture, AMD said Monday.

A year later, the US chip giant is using CES 2020 as a platform to launch its latest graphics processors. 

"In 2020, we will be introducing the best laptop processor ever built," AMD CEO Lisa Su said during the press conference. The processors will use AMD's 7nm technology.

It'll be used across gaming and creator laptops, ultrathin consumer laptops, and ultrathin professional laptops. The Ryzen 7 4800U features eight Zen 2 cores, 16 threads, up to 4.2GHz boost, 1.8GHz base, eight Radeon cores and 15W TDP. Graphics will be 28% better than Intel's Core i7, Su said, 90% better on multi-thread performance and 4% higher on single-thread performance.

More than 100 systems will be using the series by the end of 2020, with the first laptops expected in the first quarter. One laptop that will use it is the Lenovo Yoga Slim 7, also being announced at CES 2020.

Su also provided details on the anticipated Ryzen Threadripper 3990X. AMD had been expected to announce the new flagship consumer processor at CES 2020, but it dropped some details in late November. At that time, it announced it'll have 64 cores, 288MB of cache and is designed for a 280-watt power draw. Now, we also know it'll be available for $3,990, coming with 128 threads, up to 4.3GHz boost and 2.9GHz base. The Ryzen Threadripper 3990X will be available in February. 

It follows the announcement of the 32-core AMD Ryzen Threadripper 3970X and the 24-core AMD Ryzen Threadripper 3960X boxed processors, which shipped in September.

AMD also announced the AMD Radeon RX 5600 XT, which it called the "ultimate 1080p gaming." It will deliver the best graphics across all games in comparison to the competition, according to the processor giant. The 5600 will be available worldwide on Jan. 21 for $279.

It will also be coming to mobile in the first half of 2020, launching as the 5600M.

Su said AMD has partnered on Sony's PlayStation 5, the Xbox Series X, Microsoft'sxCloud and GoogleStadiagaming consoles and cloud services. Its graphics cards are also being used in Apple's new Mac Pro and the Microsoft Surface. Its processors are behind Twitter, and the data centers Google is using.

Alienware co-founder Frank Azor, who made the jump to AMD last year, additionally announced the AMD Ryzen 7 4800H, aimed at gamers and creators. It comes with eight cores, 16 threads, up to 4.2GHz boost, 2.9GHz base and 45W TDP.

Azor showed off the new Asus ROG Zephyrus G14/G15 and the Dell G5 special edition gaming laptop. The Dell laptop will use AMD's new SmartShift technology coming in the second quarter of 2020, as well as AMD's Radeon 5600M, Ryzen, FreeSync and Radeon software.

SmartShift automatically brings AMD's discrete GPU into the equation when the CPU is allocating graphics resources, just like it does for the integrated GPU, without any size increases.

CNET's Lori Grunin also contributed to this report.