Qualcomm Snapdragon 8+ Gen 1 vs AMD Ryzen 5 6600U

Qualcomm Snapdragon 8+ Gen 1

The Qualcomm Snapdragon 8+ Gen 1 Mobile Platform is a high-end SoC for smartphones that was introduced in mid 2022 and manufactured in 4 nm at TSMC. It integrates one “Prime Core” based on a ARM Cortex-X2 architecture clocked at up to 3.2 GHz. Three more performance cores are based on the Cortex-A710 but clocked up to 2.5 GHz. Furthermore, four energy saving cores are integrated that are based on the ARM Cortex-A510 architecture and clocked at up to 1.8 GHz. All cores can use the shared 6 MB level 3 cache.

Compared to the Snapdragon 8 Gen 1, the SoC is now produced in the more power efficient 4nm process at TSMC and offers higher clocked CPU and GPU cores (at a lower power consumption according to Qualcomm).

The integrated AI Engine can offer up to 4x faster AI performance thanks to the bigger Tensor engine. The 18-Bit-Spectra-ISP also saw some big improvements and is now called Snapdragon Sight.

The integrated Adreno 730 offers a 30% graphics boost compared to the previous Adreno 660.

The integrated Snapdragon X65 5G modem is also new and offers faster transfer rates (up to 10 Gbps download and 3 Gbps upload). The FastConnect 6900 offers support for the current Wifi 6E and Bluetooth 5.2.

AMD Ryzen 5 6600U

The AMD Ryzen 5 6600U is a processor for thin and light laptops based of the Rembrandt generation. The Ryzen packs six of the eight cores based on the Zen 3+ microarchitecture. They are clocked at 2.9 (guaranteed base clock) to 4.5 GHz (Turbo) and support SMT / Hyperthreading (12 threads). The chip is manufactured on the modern 6 nm process at TSMC. Compared to the similar R5 6600H, the 6600U offers a lower base clock speed and a lower TDP.

In the 6000 series, AMD finally switched to the current RDNA 2 graphics architecture for the iGPU. The 6600U only offers the small Radeon 660M with 6 of the 12 CUs enabled and 1.9 GHz max. clock rate.

The new Zen 3+ is a refresh of the Zen 3 architecture and should not offer a lot of changes. The chip itself however, offers a lot of new features, like support for USB 4 (40 Gbps), PCI-E Gen 4, DDR5-4800MT/s or LPDDR5-6400MT/s, WiFi 6E, Bluetooth LE 5.2, DisplayPort 2, and AV1 decode.

Performance

The average 6600U in our database matches the Ryzen 7 5800U in multi-thread performance, making this Ryzen 5 series chip a great CPU for most activities as of mid 2023.

Your mileage may vary depending on how competent the cooling solution of your system is and how high the CPU power limits are.

Power consumption

This Ryzen 5 series chip has a default TDP, also known as the long-term power limit, of 15 W to 28 W, the expectation being that laptop makers will go for a higher value in exchange for higher performance. Either way, that's too much to allow for passively cooled designs.

The R5 6600U is manufactured on TSMC's 6 nm manufacturing process for good, as of mid 2023, energy efficiency.