/Desktop/AMD Ryzen 5 8640U

AMD Ryzen 5 8640U


Single Thread Rating: 2924

Samples: 2*

Margin for error: High

4.9 GHZboost

Hawk Pointcodename


3.5 GHzfrequency

AMD Socket FP8socket

28 Wtdp


The AMD Ryzen 5 8640U is a mobile processor with 6 cores, launched in December 2023. It is part of the Ryzen 5 lineup, using the Zen 4 (Hawk Point) architecture with Socket FP8. Thanks to AMD Simultaneous Multithreading (SMT) the core-count is effectively doubled, to 12 threads. Ryzen 5 8640U has 16 MB of L3 cache and operates at 3.5 GHz by default, but can boost up to 4.9 GHz, depending on the workload. AMD is building the Ryzen 5 8640U on a 4 nm production process using 25,000 million transistors. The silicon die of the chip is not fabricated at AMD, but at the foundry of TSMC. The multiplier is locked on Ryzen 5 8640U, which limits its overclocking capabilities. With a TDP of 28 W, the Ryzen 5 8640U consumes only little energy. AMD's processor supports DDR5 memory with a dual-channel interface. The highest officially supported memory speed is 5600 MT/s, but with overclocking (and the right memory modules) you can go even higher. For communication with other components in the computer, Ryzen 5 8640U uses a PCI-Express Gen 4 connection. This processor features the Radeon 760M integrated graphics solution. Hardware virtualization is available on the Ryzen 5 8640U, which greatly improves virtual machine performance. Programs using Advanced Vector Extensions (AVX) will run on this processor, boosting performance for calculation-heavy applications. Besides AVX, AMD has added support for the newer AVX2 and AVX-512 instructions, too.
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