The Snapdragon 7c+ Gen 3 is a rather slow ARM chip for very inexpensive Chromebooks and Windows laptops that was announced in December 2021. Very few systems powered by this chip seem to actually have made it to shelves. The 14-inch Galaxy Book2 Go 5G is one such laptop.
While the iGPU model that the 7c Plus Gen 3 comes equipped with isn't disclosed, we do know that its 8 CPU cores are spread across 2 clusters. The first one is comprised of A55 cores running at 1.5 GHz. The second one is home to faster A76 cores running at 2.4 GHz.
Architecture and Features
The Snapdragon SoC features LPDDR4x and LPDDR5 memory support (up to 6,400 MT/s). The only laptop equipped with this chip that seems to be available for purchase in September 2024 has just 4 GB of RAM which probably runs in a single channel (technically, dual channel) configuration. 64-bit x86 code emulation is supported natively which is very important for app compatibility.
Wi-Fi 6 and 6E are onboard, including the 6 GHz band and 160 MHz channel width support. So are Bluetooth 5.2 and 5G, 4G LTE, 3G, CDMA courtesy of the Snapdragon X53 5G modem which was quite an achievement back in 2021. The highest USB version supported is 3.1 Gen 1 (5 Gbit/s).
As far as storage is concerned, a system built around the 7c+ Gen 3 should be compatible with PCIe NVMe SSDs [it is likely that two PCIe 3 lanes or 4 PCIe 2 lanes are on offer for peak throughput of around 2 GB/s], as well as with UFS 3.1, eMMC 5.1 and SD 3.0 compliant storage solutions.
It goes without saying that this chip gets permanently soldered onto the motherboard. It's not user-upgradeable.
Performance
The Qualcomm CPU delivers performance resemblant of lower-end ULV Intel chips such as the Pentium N6000 when executing multi-threaded x86 code. Even in 2021, this would just about be good enough for basic day-to-day activities. For 2024, this is a very poor result.
Graphics
The unknown Adreno series iGPU that the SoC comes with delivers very unimpressive performance on par with Intel's 24 EU iGPU found on a couple of Jasper Lake chips. Qualcomm states that display resolutions no higher than FHD+ are supported; that means the classic FHD resolution (1920 x 1080 pixels) is certainly covered.
Power consumption
Since this is a low-performance part that is built with a still relevant 6 nm process, it is likely to consume very little power. 5 W or 6 W under load is probably a reasonable figure to name. No fan is needed to dissipate this little heat.
- Average benchmark values
