The Qualcomm Snapdragon 8cx Gen 2 5G Compute Platform (or SD8cx Gen2, SC8180XP) is a ARM based SoC for Windows laptops. It integrates a similar CPU part as the Snapdragon 855 (same cores but without the Prime Core feature) and is manufactured in 7nm at Samsung. The 4 Kryo 495 Gold cores are based on the ARM Cortex-A76 architecture (for performance) and clocked at 3.15 GHz under load. The 4 Kryo 495 Silver cores are small ARM Cortex-A55 cores for power efficiency and clocked at 1.8 GHz under load (most likely).
Compared to the predecessor, the Snapdragon 8cx, the Gen 2 offers higher clock speeds and an integrated 5G modem (X55 with Sub-6 GHz and mmWave support). Wi-Fi was also bumped up to Wi-Fi 6
The processor performance should be similar to a Intel Core i5 8th gen U-series (e.g. i5-8250U) according to Qualcomm. However, this is only the case for native ARM64 compiled Windows apps which are not that many (in mid 2019). 32 bit applications and games for AMD/Intel run in a rather slow emulation and 64 bit apps wont start at all (but an emulator should come in Windows in 2021).
The integrated Adreno 680 graphics card could also be a bit higher clocked.
The chip is very power efficient as its produced at TSMC in the modern 7 process. Therefore, laptops using the Snapdragon 8cx can be passively cooled (no fan) and should not throttle under constant load.
| Codename | Cortex-A76 / A55 (Kryo 495) | ||||||||||||
| Series | Qualcomm Snapdragon | ||||||||||||
Series: Snapdragon Cortex-A76 / A55 (Kryo 495)
| |||||||||||||
| Clock Rate | 3150 MHz | ||||||||||||
| Level 3 Cache | 2 MB | ||||||||||||
| Number of Cores / Threads | 8 / 8 | ||||||||||||
| Power Consumption (TDP = Thermal Design Power) | 7 Watt | ||||||||||||
| Manufacturing Technology | 7 nm | ||||||||||||
| Features | X24 LTE Modem, Adreno 680 GPU | ||||||||||||
| GPU | Qualcomm Adreno 680 | ||||||||||||
| NPU / AI | 9 TOPS INT8 | ||||||||||||
| 64 Bit | 64 Bit support | ||||||||||||
| Architecture | ARM | ||||||||||||
| Announcement Date | 09/03/2020 | ||||||||||||
| Product Link (external) | www.qualcomm.com | ||||||||||||
- Average benchmark values
Xiaomi Book S 12.4: Qualcomm Adreno 680, 12.40", 0.7 kg
External Review » Xiaomi Book S 12.4
Acer Spin 7 SP714-61NA-S6K5: Qualcomm Adreno 680, 14.00", 1.4 kg
External Review » Acer Spin 7 SP714-61NA-S6K5
Acer Spin 7 SP714-61NA-S8Z7: Qualcomm Adreno 680, 14.00", 1.4 kg
External Review » Acer Spin 7 SP714-61NA-S8Z7
HP EliteBook Folio 13.5-3G2L2EA: Qualcomm Adreno 680, 13.50", 1.3 kg
External Review » HP EliteBook Folio 13.5-3G2L2EA
HP EliteBook Folio 13-3G2N3EA: Qualcomm Adreno 680, 13.50", 1.3 kg
External Review » HP EliteBook Folio 13-3G2L2EA
HP EliteBook Folio 13.5-3G2L2EA: Qualcomm Adreno 680, 13.50", 1.3 kg
» HP EliteBook Folio 13.5: Unique Windows-on-ARM convertible
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