More Powerful Than Snapdragon 835/Helio P23? Spreadtrum SC9853I Modem Performance Exposed!

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In August 2017, Spreadtrum launched its latest SoC – SC9853I, which is based on 14nm Intel Airmont microarchitecture. It was reported that the SoC was ready for mass production in December and would soon make its international debut on LEAGOO T5c.

Spreadtrum SC9853I Modem VS Snapdragon 835 and P25 1
LEAGOO T5c Powered by SC9853I

Official hands-on Video:

SC9853I VS Snapdragon 835 and P25 2

Based on Intel’s 14nm FinFET process technology, SC9853I features 1.8GHz 64-bit octa-core Intel Airmont microarchitecture and Mali-T820 MP2 GPU. As for its modem, SC9853I supports LTE (Long-Term Evolution) Cat-7 downlink and Cat-13 uplink for 5-mode communication standard (TD-LTE/FDD-LTE/TD-SCDMA/WCDMA/GSM), which can reach downlink speeds of 300Mbps and uplink speeds of up to 150Mpbs to achieve a true 4G+ on-line surfing experience.

In terms of its parameters, SC9853I is quite competitive in the mid-range market. At Spreadtrum’s Global Partners Conference 2017, Spreadtrum pointed out that SC9853I SoC, although targeting at the mid-range and entry-level phone, has the flagship performance.

In order to illustrate SC9853I’s real performance, a comparison analysis is made among Spreadtrum SC9853I, Qualcomm Snapdragon 835, Huawei Kirin 970 and MTK Helio P23.

Because these SoCs have huge difference in CPU and GPU, the comparison is mainly focused on their modem performance in terms of download speed and voice calling performance.

Researchers tested the above SoCs by downloading 800+ GB files and making 3000+ minutes voice calls and the test results are as follows:

1. Download Speed

SC9853I VS Snapdragon 835 and P25 3

In the working area (office and conference rooms), Spreadtrum SC9853I’s download speed is the highest, even superior than Kirin 970 and Snapdragon 835.

SC9853I VS Snapdragon 835 and P25 4

In the shopping area, SC9853I’s download speed is generally superior than Helio P23 and in some occasions even higher than Kirin 970 and snapdragon 835.

SC9853I VS Snapdragon 835 and P25 5

In low-speed driving, SC9853I’s download speed is close to Kirin 970 and Snapdragon 835; in high- speed driving, SC9853I’s download speed is higher than the other three SoCs.

Overall, the average download speed of SC9853I is as good as other flagship SoCs.

2. Voice Calling Performance

SC9853I VS Snapdragon 835 and P25 6

In the working area, SC9853I’s average voice calling performance is higher than the other SoCs.

SC9853I VS Snapdragon 835 and P25 7

In high-speed driving, the average voice calling performance of SC9853I is better than Snapdragon 835 and Helio P23 by a long shot, equivalent to Kirin 970. The HD voice percentage for SC9853I, however, has room for improvement.

In low-speed driving, SC9853I’s average performance is similar to Helio P23, lower than Kirin 970 but superior than Snapdragon 835. Meanwhile, SC9853I’s HD voice percentage is lower than Helio P23 and Kirin 970 but superior than Snapdragon 835.

SC9853I VS Snapdragon 835 and P25 8

In conclusion, SC9853I’s performance is good enough to match a flagship SoC in terms of modem performance. Sources show that SC9853I has adopted the latest V2 architecture and made full-scale optimizations on radio frequency and baseband algorithms, which greatly improve its mobile communication performance no matter you are working, shopping or driving.

SC9853I VS Snapdragon 835 and P25 9

SC9853I VS Snapdragon 835 and P25 10

LEAGOO T5c full specs

Display: 5.5 inch SHARP FHD IPS
CPU: Spreadtrum SC9853I 1.8Ghz , Intel X86 core, 64bit
Rear Camera: Samsung 13.0 + OV 2.0 dual-cam
Front Camera: OV 5.0 MP
Battery: LG 3050mAH with 5V2A quick charge
Fingerprint: 360°rear front-mounted fingerprint ID

Now LEAGOO is offering discounts of up to ₦3660 on their official Jumia Store in Mobile Week from 19th March until 25th March.

Take advantage of our pay on delivery or online payment options and order for your favourite brand of mobile phone.

Campaign Link:

Presale Campaign Time:
19th March – 25th March.


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  1. Great breakdown in broad detail.

    Our Nigerian brethren hardly check the processor types nor even performance for that matter.

    First is the Camera, second battery, third ram size, 4th other esthetics.

    The high tech aspect hasn’t fully dawned on us and I believe to many, ignorance is bliss when it pertains to this. Lol.

    I admire the dedication bro. Kudos

  2. This article is absolutely lovely, you simply break it down for us to understand, job well done. This is what most of us don’t know about our Smartphones, what comes to some people’s minds when getting a phone are the Big screen size, good camera, big battery capacity, some don’t even care about “RAM” size, and they will later complain about their phones been Slow and getting hot. That is why every phone users should see this article.

  3. Wonderful review, while seeing the video i was thinking about the brains behind this product called LEAGOO.. They’ve got a lot up their sleeves.. Can’t wait to see them flood our market..

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