Earlier this month, AMD announced the Ryzen 7 4800U and Ryzen 9 4900HS as the next flagship laptop processors for the Ryzen 4000 U and H series, respectively. Although AMD is adopting the two chips to different markets, the recent leak has given us an assumed look at the potential performance difference between the two chips.
The Ryzen 7 4800U and Ryzen 9 4900HS (codenamed Renoir) share similar ingredients. Both APUs leverage AMD’s Zen 2 microarchitecture and are the product of TSMC’s 7nm FinFET manufacturing process. Each processor has eight cores, 16 threads, and 8MB of L3 cache. They even have the same integrated graphics (iGPU), consisting of eight Vega graphics cores that peak at 1,750 MHz. But that’s where the similarities end.
The Ryzen 7 4800U is intended for thin and light notebooks, so it is forced to work with a base clock of 1.8 GHz and a clock of increase of 4.2 GHz to respect the limit of 15W TDP (power of thermal design) ). The Ryzen 9 4900HS is designed by AMD for the best gaming laptops, with a higher TDP. With a more generous 35W TDP, the Ryzen 9 4900HS runs on a 3.0 GHz base clock and a 4.3 GHz boost clock.
According to the filter, the Ryzen 7 4800U system was using 4,266 MHz LPDDR4x memory. This configuration allowed the Ryzen 7 4800U to achieve Physics and Graphics scores of 16,171 and 3,543 points, respectively.
The Ryzen 9 4900HS reportedly had a Physics score of 21,289 points and a Graphics score of 4,085 points on the same test. Thus, the Ryzen 9 4900HS appears to offer up to 31.6% higher performance, at least on Fire Strike.
The performance of the iGPU seems to have also risen 15.3% compared to the Ryzen 9 4900HS. This could be explained by the higher 20W TDP of the Ryzen 9 4900HS, which allows the UGPI to sustain more functioning clocks for a longer period.
Therefore, we have chips with the same number of cores, worse with different performance due to the difference in their TDP and operating frequencies. We will keep you informed.