AMD Ryzen 5 8640U

The Ryzen 5 8640U is a laptop chip soldered to the motherboard, so you choose it by choosing the laptop. It is the Hawk Point refresh of the Ryzen 5 7640U, with 6 Zen 4 cores, 12 threads, a 3.5 GHz base clock, up to 4.9 GHz boost, 6 MB of L2 and 16 MB of L3 cache on a 4 nm process. It supports dual-channel DDR5 and LPDDR5X memory and PCIe 4.0, and laptop makers can set its power anywhere from 15 W to 30 W around a 28 W default.

Six full Zen 4 cores give it strong single-thread speed for its class, which is what makes browsing, office apps and video calls feel quick. Multi-core work such as exporting video or compiling code is solid for a thin-and-light but clearly behind 8-core laptop chips. Two laptops with the same Ryzen 5 8640U can perform quite differently, because real speed depends on the power limit and cooling each maker chooses.

The Radeon 760M has 8 graphics cores at up to 2600 MHz. It handles high-resolution video, multiple displays and light photo editing with ease, and runs older or lighter games at 1080p on low settings, especially with dual-channel memory. The NPU is rated at up to 16 TOPS, up from up to 10 TOPS on the Ryzen 5 7640U, with up to 31 TOPS for the whole chip according to AMD. That helps with supported on-device AI features but is below the 40 TOPS Copilot+ requirement.

Against the Ryzen 5 7640U, the CPU and graphics specs are the same on paper, and the main change is the faster NPU. The Ryzen 5 230 from the Ryzen 200 Series matches it on CPU and graphics specs too. Intel Core Ultra 5 125U and Core i5-1335U are the rivals you will see in similar laptops, and the Ryzen 5 8540U is the lower-cost sibling with Zen 4c cores and Radeon 740M graphics. Use the comparison pages below to check each spec side by side.

Yes, if you want a capable everyday laptop with good integrated graphics at a sensible price. Check that the laptop has dual-channel memory, a decent screen and a power limit closer to 28 W than 15 W. If a Ryzen 5 7640U or Ryzen 5 230 laptop is cheaper, it gives you much the same everyday experience. For Copilot+ AI features, look at a Ryzen AI 300 Series laptop instead.