AMD Ryzen 5 3850U (Microsoft Surface Edition) is a mobile APU integrated with Radeon RX Vega 8 graphics, that was released as part of MS Surface Book 15 in 2019. It is a SoC based on the Ryzen 5 3500U with increased performance features. Being part of the Picasso brand, it has been crafted with second generation Zen+ core architecture for higher clock speeds and improved energy efficiency.
Just like other Ryzen 5 CPUs, this version is equipped with 4 cores and 8 threads. Despite having the same number of cores as 3500U (its predecessor), it has a base clock of 2.2GHz which can be boosted maximally to 3.8GHz but not unlocked for overclocking. This clock speed can handle performance satisfactorily, so overclocking may not be necessary. This chip boasts an L2 and L3 cache memory of 2MB and 4MB respectively, in addition to the L1 memory of 384Kb. The L2 and L3 cache memory alongside the cores and threads makes retrieving information from the chip’s memory and task execution more efficient (faster). Just like the 3500U, it is laced with AMD’s SenseMI technology which serves to enhance performance by incorporating true machine intelligence capabilities.
It also offers less freedom in the form of configurable TDP, since its TDP is specified at 15 Watts. Therefore, TDP cannot contribute to its performance in the same way it does for the 3500U. However, this ensures that the chip’s power consumption is always controlled. The 12 nm transistor size, however, gives it a performance edge over the Raven Ridge CPUs (first generation CPUs).
Ryzen 3850U is made for mid-range thin laptops, such as HP Pavilion 14 and the designated Surface book 15. Laptops with this chip can comfortably handle multiple tasks and some high-end processes such as video editing and some light gaming (thanks to the integrated graphics). Compared to 3500U, 3850U integrates a more powerful graphics card, the Radeon RX Vega 9 graphics card. This graphics card offers 9 compute units (as many as 576 Shaders) and clocks at 1300MHz. It also meets the gaming system requirements of DirectX 12 and ranks just above NVIDIA GeForce MX250. With this chip, you can play games such as Minecraft, Fortnite, and GTA V.
It ranks between Intel’s Corei3 1005G1 and Corei5 8250U in performance ratings. As part of the U series, this version is labeled as the standard mobile because it attempts to incorporate high performance with energy efficiency. It functions well for laptops intended for regular home and office tasks, at the same time being involved in some limited high-end tasks.