The AMD Ryzen 7 4800U is a 64-bit octa-core mobile processor for thin and light laptops that was launched in January 2020. The processor’s cores are based on Zen 2 microarchitecture with capable of 16 threads thanks to simultaneous multithreading support. All the eight cores operate at a base clock speed of 1.8GHz and a maximum boost clock of up to 4.2GHz. With eight cores in total, the processor is able to carry out more advanced tasks such as handling high-resolution videos and graphic-heavy games without draining the battery, making the devices capable and power-efficient.
This chip, much like 4700U, is manufactured using the 7nm TSMC’s FinFET technology which greatly improves its performance and power efficiency per Watt. The TDP of this mobile APU is rated at a default of 15W and is suitable for demanding computing tasks. However, the performance of this processor is strongly dependent on the chip’s TDP configuration (between 10-25W) and the cooling system of the laptop device.
The chip also features an integrated AMD Radeon Vega 8 graphics with an 8 GPU core count that can run up to 1750MHz. The GPU also supports HDMI and Display port interfaces. Compared to the slightly similar Ryzen 7 4700U, they both physically connect to the FP6 CPU socket. The AMD Ryzen 7 4800U comes with Windows 10 operating system (OS) pre-installed and supports multiplicity (x86) in software like Ubuntu and other OS like Linux. Otherwise, support for various operating systems varies depending on the manufacturer.
Additionally, the 4800U processor features a total amount of 4MB for L2 cache and 8MB for L3 cache per core and a doubled prefetch for branch prediction. It supports PCIe version 3.0 connectivity which is used to communicate between the chipset and storage devices or other components. The chip also supports a dual DDR4 memory channel that operates up to 3200MHz as well as an LPDDR4 memory controller that runs up to 4266MHz RAM thus saving on power consumption for laptops.
Regarding performance, the AMD Ryzen 7 4800U is 4% faster than 4700U according to AMD while based on Cinebench R20’s results, the 4800U has a 1.72% higher single-core performance compared to Ryzen 7 4700U. According to Geekbench 5 results, AMD’s Ryzen 7 4800U single-core and multi-core performance is 5.46% and 22.58% higher than the 4700U performance respectively. The difference in performance between the 4800U and 4700U processors could be because the former supports simultaneous multithreading and has a 0.1GHz higher turbo boost clock (4.2GHz vs 4.1GHz).