Qualcomm Snapdragon 7c Gen 2 vs Mediatek Helio G99 vs Mediatek Helio G90T

Qualcomm Snapdragon 7c Gen 2

The Qualcomm Snapdragon 7c Gen 2 Compute Platform (or SD7c Gen2) is a ARM based SoC for Windows laptops. It integrates two fast Kryo 495 Gold cores (based on the ARM Cortex-A76 architecture) at up to 2.55 GHz and six small Kryo 495 Silver cores (ARM Cortex-A55) for power efficiency. Compared to the previous generation, the clock speeds were slightly increased.

According to Qualcomm, the Snapdragon 7c Gen 2 can offer up to 60% better productivity performance per watt in Windows 10 compared to Gemini Lake Refresh chips such as the Intel Celeron N4020 and, to a good extent, the Pentium Silver N5030.

The integrated X15 LTE modem supports Cat.12 download (600 MBit/s) and Cat.13 upload speeds (150 MBit/s). Furthermore, Wifi-5 and Bluetooth 5.0 are integrated in the SoC. In addition to the Adreno 618 graphic card, the SoC also integrates a Hexagon 692 NPU.

The chip is produced in 8nm (compared to the more modern 7LPP process of the 8cx) and intended for the use in thin and light laptops without a fan.

Mediatek Helio G99

The Mediatek Helio G99 is a mainstream ARM SoC for smartphones (mainly Android based) that was introduced in 2022. It is manufactured in a 6 nm FinFET process and is equipped with 2x big ARM Cortex-A76 cores with up to 2.2 GHz and 6x small and power efficient ARM Cortex-A55 cores (max. 2 GHz) in two clusters (bigLITTLE). The chip integrates an ARM Mali-G57 MC2 (two cores). Compared to the older Helio G96, the G99 is manufactured in the more recent 6nm process and clocks higher.

Furthermore, the integrated LTE / 4G modem supports Cat-13 download speeds. Wi-Fi 5 is also integrated (a/b/g/n/ac). The memory controller supportsLPDDR4x with up to 4,266 Mbps.

Mediatek Helio G90T

The Mediatek Helio G90T is an upper mainstream ARM SoC for smartphones (mainly Android based) that was introduced in 2019. It is manufactured in a 12 nm FinFET process and is equipped with 2x big ARM Cortex-A76 cores with up to 2.05 GHz and 6x small and power efficient ARM Cortex-A55 cores (max. 2 GHz) in two clusters (bigLITTLE). The chip also integrates a ARM Mali-G76 3EEMC4 (should be a MP4 - four cluster variant) clcoked at 800 MHz. Furthermore, the integrated LTE modem supports Cat-12 600 Mbps download and Cat-13 150 Mbps upload speeds. Wi-Fi 5 is also integrated (a/b/g/n/ac). The memory controller supports LPDDR3 and LPDDR4x with up to 2,133 MHz with up to 10 GB capacity.