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Qualcomm Snapdragon 8cx

The Qualcomm Snapdragon 8cx Compute Platform (or SD8cx) 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 TSMC. The 4 Kryo 495 Gold cores are based on the ARM Cortex-A76 architecture (for performance) and clocked at 2.84 GHz under load (no single core Turbo). The 4 Kryo 495 Silver cores are small ARM Cortex-A55 cores for power efficiency and clocked at 1.9 GHz under load. According to Qualcomm, the clock speed should not be reduced under constant load with typical (fanless) cooling. The integrated X24 LTE modem supports up to 2 Gbps download speeds. Furthermore, the SoC integrates ac-Wifi and a dual-channel 32-bit 1866 MHz LPDDR4x memory controller.

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 65 bit apps wont start at all.

The integrated Adreno 680 graphics card is a beefier version of the Adreno 640 in the Snapdragon 855 and should be twice as fast as the old Adreno 630 (in Windows laptops) and offer a 60% higher efficiency.

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.

SeriesQualcomm Snapdragon
CodenameCortex-A76 / A55 (Kryo 495)
Clock Rate2840 MHz
Level 3 Cache2 MB
Number of Cores / Threads8 / 8
Manufacturing Technology7 nm
FeaturesX24 LTE Modem, Adreno 680 GPU
GPUQualcomm Adreno 680
64 Bit64 Bit support
Announcement Date12/06/2018
Product Link (external)Qualcomm Snapdragon 8cx

Benchmarks

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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Reviews for the Qualcomm Snapdragon 8cx processor

Samsung Galaxy Book S (Qualcomm Adreno 680, 13.3")
» Samsung Galaxy Book S - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Snapdragon

» Qualcomm Snapdragon 8cx
   2.84 GHz + 2 MB L3
» Qualcomm Snapdragon 855+
    + 5 MB L3
» Qualcomm Snapdragon 855
   2.84 GHz + 5 MB L3
» Qualcomm Snapdragon 850
   2.96 GHz + 2 MB L3
» Qualcomm Snapdragon 845
   2.8 GHz + 2 MB L3
» Qualcomm Snapdragon 730
   2.2 GHz
» Qualcomm Snapdragon 835
   2.45 GHz
» Qualcomm Snapdragon 712
   2.3 GHz
» Qualcomm Snapdragon 710
   2.2 GHz
» Qualcomm Snapdragon 670
   2.02 GHz
» Qualcomm Snapdragon 665
   2.2 GHz
» Qualcomm Snapdragon 660
   2.2 GHz
» Qualcomm Snapdragon 821 MSM8996 Pro
   2.4 GHz / 1.5 MB L2
» Qualcomm Snapdragon 820 MSM8996
   2.2 GHz / 1.5 MB L2
» Qualcomm Snapdragon 805 APQ8084
   2.7 GHz / 2 MB L2
» Qualcomm Snapdragon 636
   1.8 GHz
» Qualcomm Snapdragon 632
   1.8 GHz
» Qualcomm Snapdragon 630
   2.2 GHz
» Qualcomm Snapdragon 626
   2.2 GHz
» Qualcomm Snapdragon 801 MSM8974AC
   2.45 GHz / 2 MB L2
» Qualcomm Snapdragon 801 APQ8074AB
   2.36 GHz / 2 MB L2
» Qualcomm Snapdragon 801 MSM8974AB
   2.36 GHz / 2 MB L2
» Qualcomm Snapdragon 801 MSM8974AA
   2.26 GHz / 2 MB L2
» Qualcomm Snapdragon 800 MSM8974
   2.3 GHz / 2 MB L2
» Qualcomm Snapdragon 450
   1.8 GHz
» Qualcomm Snapdragon 600 APQ8064T
   1.7 GHz / 2 MB L2
» Qualcomm Snapdragon 435
   1.4 GHz
» Qualcomm Snapdragon 430
   1.4 GHz
» Qualcomm Snapdragon S4 Pro APQ8064A
   1.5 GHz / 2 MB L2
» Qualcomm Snapdragon 425
   1.4 GHz
» Qualcomm Snapdragon S4 Pro MSM8960DT
   1.7 GHz / 1 MB L2
» Qualcomm Snapdragon MSM8960T
   1.7 GHz / 1 MB L2
» Qualcomm Snapdragon 400 8930AB
   1.7 GHz / 1 MB L2
» Qualcomm Snapdragon S4 Plus APQ8060A
   1.5 GHz / 1 MB L2
» Qualcomm Snapdragon S4 Plus MSM8960
   1.5 GHz / 1 MB L2
» Qualcomm Snapdragon S4 Plus MSM8260A
   1.7 GHz / 1 MB L2
» Qualcomm Snapdragon S4 Plus MSM8930
   1.2 GHz / 1 MB L2
» Qualcomm Snapdragon S4 Plus MSM8230
   1.2 GHz / 1 MB L2
» Qualcomm Snapdragon S4 Plus MSM8230
   1.2 GHz / 1 MB L2
» Qualcomm Snapdragon 205
   1.1 GHz
» Qualcomm Snapdragon S4 Plus MSM8227
   1 GHz / 1 MB L2
» Qualcomm Snapdragon S3 MSM8660
   1.7 GHz / 1 MB L2
» Qualcomm Snapdragon S3 MSM8260
   1.5 GHz / 1 MB L2
» Qualcomm Snapdragon S1 MSM7227A
   1 GHz / 0.3 MB L2
» Qualcomm Snapdragon S1 MSM7225A
   1 GHz / 0.3 MB L2
» Snapdragon S1 MSM7227
   0.6 GHz

Surrounding CPUs

- Intel Core i3 8100H
   3 GHz / 1 MB + 8 MB
- Intel Core i7 2760QM
   2.4 GHz / 1 MB + 6 MB
- Intel Core i5 7287U
   3.3 GHz / 0.5 MB + 4 MB
- Intel Comet Lake i3-10110U
   2.1 GHz / 1 MB + 4 MB
- Intel Core i7 7560U
   2.4 GHz / 0.5 MB + 4 MB
» Qualcomm Snapdragon 8cx
   2.84 GHz + 2 MB L3
+ Intel Core i3 8145U
   2.1 GHz / 1024 KB + 4096 KB
+ Intel Core i5 (Desktop) 6400
   2.7 GHz / 1024 KB + 6144 KB
+ Intel Core i5 (Desktop) 6500T
   2.5 GHz / 1024 KB + 6144 KB
+ Intel Core i5 (Desktop) 2400
   3.1 GHz / 1024 KB + 6144 KB
+ Intel Core i7 (Desktop) 960
   3.2 GHz / 1024 KB + 8192 KB
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Qualcomm Snapdragon 8cx SoC
Klaus Hinum (Update: 2019-05-16)