With all the smartphone-based talk about the leading edge of the industry focusing on upcoming 10nm chips, it might be easy to forget that the majority of smartphones sold in 2017 will still be on 16nm or 28nm and are more likely to be A72/A53 based rather than A73 or custom cores. Earlier this year we have already seen the launch of the Xiaomi Redmi Note 4 in India, with a surprising twist: Xiaomi downgraded the SoC in that phone (with lower peak performance) over the Note 3 due to the power saving advantages of using eight ARM Cortex A53 cores on 16nm in the Snapdragon 625 over using a 2+4 configuration of A72/A53 as seen in the Note 3 on 28m. At the time we postulated that this is going to be a trend through 2017: we’ll see mid-range smartphones go after power efficiency with smaller cores and smaller chips on more power efficient processes in exchange for performance.

Nonetheless, the power efficient chip does still need some performance, and Mediatek is announcing the P25 for this. The P25 features a significant step up from the P10, and speed boost to the P20. This allows the P25 to support dual cameras as well.

MediaTek 2017 H1 20-Series Lineup
SoC X20 X23 X25 X27   P20 P25
CPU 2xA72 2.10 GHz 2.30 GHz 2.50 GHz 2.70 GHz   - -
4xA53 1.85 GHz 1.85 GHz 2.00 GHz 2.00 GHz   2.3 GHz 2.6 GHz
4xA53 1.40 GHz 1.40 GHz 1.55 GHz 1.60 GHz   1.6 GHz 1.6 GHz
LPDDR3 1 x 800MHz   1 x 32-bit @ 933 MHz
LPDDR4X     2 x 16-bit @ 1600 MHz
@780 MHz
T880MP4 @850 MHz T880MP4 @875 MHz   T880MP2
Encode 2160p30 HEVC w/HDR   2160p30 H.264
Decode 2160p30 10-bit H.264/HEVC/VP9   2160p30 H.264 & HEVC
Single Dual 32MP ISP @ 24fps   24MP 24MP
Dual ?   - 2x13MP
Modem  LTE Cat. 6 300/50 with 2x20 CA
Mfc. Process 20SoC   16nm FinFET

The P20 was perhaps not as popular as Mediatek would have liked in 2016: it was in the Elephone P20 and the UMI Plus E, but that’s about it. By contrast, the P10 was popular. To entice handset developers to drop in a better chip to the updates for these devices in 2017, the P25 adds another 200 MHz into the cores over the P20, as well as increasing the internal Turbo Engine for a 30-35% performance boost. This allows the DSP to support dual cameras, up to 13MP+13MP, and puts it directly in line against devices such as the dual-camera based Honor 6X which uses the Kirin 655. The P25 also retains the support for dual channel LPDDR4X up to 6GB.

The rest of the P25 is similar to the older SoC: 4K30 decode for HEVC, 4K30 encode for H.264, integrated ARM Mali T880MP2 graphics, and a Cat 6 modem with support for 2x20 MHz carrier aggregation. Both SoCs support a screen resolution of Full HD at 60 FPS.

Given today’s announcement, it is highly likely that the P25 has been shipping to customers for long enough to perhaps see some design wins for Mobile World Congress, which starts at the end of February. There will be three of us at the show, so stay tuned for our coverage.


Source: Mediatek

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  • Arnulf - Thursday, February 9, 2017 - link

    Sony stock ROM are fine but alas they employ Mediatek chips in some of their phones (such as Xperia E5 that I own) which means no upgrade - it's stuck with 6.0 Marshmallow and will never see 7.0, let alone 7.1 or anything higher.
  • Ariknowsbest - Thursday, February 9, 2017 - link

    Mali-880 is still fairly new, for a media/productivity its more than enough. Ain't Mali-G71 only in one design at the moment Kirin 960.

    As I prefer PowerVR I mostly game on my iPad as the games are well optimized. Adreno is nice too, haven't used Nvidia since T3/T4 days

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