Snapdragon 4s Gen 2 details leak: lower clock speeds, slower 5G modem

Qualcomm will announce a budget 5G chipset at tomorrow’s ‘Snapdragon for India’ event and Evan Blass may have just spoiled the surprise – here are the details for the Snapdragon 4s Gen 2. This is a lower power, cheaper version of the Snapdragon 4 Gen 2 from last year.

This is still a 4nm chip with an octa-core CPU (two Cortex-A78 plus six A55), but with the clock speeds dialed back by 200MHz. The GPU presumably took a step back as well. Also, only 2,133MHz LPDDR4X RAM is supported (the non-s model can also use 5X at 3,200MHz). In terms of performance, this should slot in somewhere between the original Snapdragon 4 Gen 1 and the 4 Gen 2, but it should have better efficiency than the Gen 1 chip.

Another noticeable change is that the display support is down to 90Hz refresh rate at FHD+ resolution. This is aimed at cheaper phones, so they will either use HD+ displays at 120Hz or FHD+ at 90Hz. The dual ISP can no longer support 108MP image sensors too, so manufacturers will likely settle at 50MP or 64MP.

Snapdragon 4 Gen 1 Snapdragon 4 Gen 2 Snapdragon 4s Gen 2
Process 6nm (TSMC) 4nm 4nm
CPU 2x A78 @ 2.0GHz + 6x A55 @ 1.8GHz 2x A78 @ 2.2GHz + 6x A55 @ 2.0GHz 2x A78 @ 2.0GHz + 6x A55 @ 1.8GHz
GPU Adreno 619 Adreno 613 Adreno
RAM LPDDR4x 2,133MHz LPDDR5x 3,200MHz LPDDR4x 2,133MHz
Storage UFS 2.2 UFS 3.1 (2-lane) UFS 3.1 (2-lane)
Display Up to FHD+ @ 120fps Up to FHD+ @ 120fps Up to FHD+ @ 90Hz
ISP Triple Dual (12-bit) Dual (12-bit)
Camera up to 108MP up to 108MP, up to 32MP Zero Shutter Lag Up to 84MP, up to 32MP Zero Shutter Lag
Video up to 1080p @ 60fps up to 1080p @ 60fps, EIS up to 1080p @ 60fps
Modem X51 (2.5Gpbs down, 800Mbps up) X61 (Rel. 16, 2.5Gpbs down, 900Mbps up) up to 1Gbps down
Local Wi-Fi 5, Bluetooth 5.1 (aptX) Wi-Fi 5, Bluetooth 5.1 (aptX) Wi-Fi 5, Bluetooth 5.1 (aptX)
USB 3.2 Gen 1 3.2 Gen 1 3.2 Gen 1
Charging Quick Charge 4+ Quick Charge 4+ Quick Charge 4+

This is an affordable 5G chipset, but its 5G capabilities have been scaled back compared to the 4 Gen 2 and the downlink speed is limited to 1Gbps (down from 2.5Gbps). Whether there is a tangible difference in daily use is another matter. Local connectivity is relatively limited with support for the older Wi-Fi 5 (ac) and Bluetooth 5.1 standards, but the same applies to the 4 Gen 2 (these are 4-series chips, after all).

The chip still features the Qualcomm Audio and Voice Communication suite and can stream music at 96kHz. It has multi-frame noise reduction and EIS for the camera, plus dual-frequency reception for global positioning.

Snapdragon 4s Gen 2 (QCTSD4SG2) leaked details

Check back tomorrow to see if Qualcomm officially confirms these details. Also, tomorrow’s event promises “two historic announcements” – one is almost certainly the Snapdragon 4s Gen 2, the other is anyone’s guess.

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