Mobile VR Qualcomm / MediaTek / Hai Si who can dominate?

VR equipment company Oculus announced that its number of Gear VR glasses jointly developed with Samsung has exceeded 1 million. At the CES Asia 2016, VR equipment is also the embodiment of this industry. Mobile VR is considered to be more promising due to its low price and portability, so who is the leader of the upstream chip?

The importance of GPU to VR

The industry believes that users must have a 20ms millisecond delay, a screen refresh rate of 75Hz or more, and a gyroscope refresh rate of 1K or more, in order to obtain a good experience. Studies have shown that the delay of human head movement and visual field return must be less than 20 milliseconds, otherwise it will produce visual smear and lead to severe vertigo; the higher the refresh rate, the smaller the VR delay, the flickering of the screen and the delay. The improvement is achieved, and the experience is better. At least 75 Hz or above should be achieved when the experience of VR products is smooth.

Both the delay and the picture refresh rate are related to the GPU performance. It determines whether the VR product can meet the delay of 20ms and the key VR of the 75Hz~90Hz screen refresh rate. Therefore, the GPU capability becomes the VR product experience. The key factor.

At present, the GPU performance of the PC market is strong, and it is far more suitable for VR than the GPU of the mobile market. However, with the rapid popularization of smartphones, the number of mobile users in the global market is several times that of PC users, stimulating application developers based on mobile platforms. Developing can help the rapid growth of content. On the other hand, the cost of moving VR glasses boxes is much cheaper than that of PC-side VR. The most popular Samsung Gear VR is only starting at $99, while the Oculus Rift is priced at $599, which has made mobile VR popular.

At present, Qualcomm, MediaTek, Samsung, and Huawei Hess, which are dominant in the mobile market, have better GPU performance and are more suitable for mobile VR.

Who is the mobile VR chip?

The high-end chips currently listed by the four mobile phone chip companies are Qualcomm's Opteron 820, MediaTek's helio X25, Samsung Exynos 8890 and Huawei's Hierarch 955. The GPUs used are Adreno530, Mali-T880MP4, Mali-T880MP12, respectively. Mali-T880MP4.

From the GFXbench test, Qualcomm Snapdragon 820's Adreno530 is the strongest, Manhattan ES 3.0 is up to 48.7FPS, which exceeds the 40 volts of the PowerVR GT7600 on the iPhone6S, which is equivalent to NVIDIA's Maxwell, becoming the most powerful GPU in the mobile chip market. If it is no wonder, the Samsung galaxy S7/S7edge mobile phone with the Snapdragon 820 is best with the Gear VR experience.

Samsung Exynos8890, MediaTek helio X25, Kirin 955 three mobile phone chips are ARM's Mali-T880 GPU. Samsung Exynos8890 has up to 12 GPU cores, and Manhattan ES 3.0 can reach 47FPS, which is basically equivalent to Qualcomm's Opteron 820. Considering the demand for Netcom in the Chinese market, Samsung's galaxy S7/S7edge launched in the Chinese market all use Snapdragon 820 chips, and Exynos8890 does not support CDMA.

MediaTek's helio X25 and Kirin 955 have four GPU cores, all of which are Mali-T880 MP4, and Manhattan ES 3.0 scores around 17FPS, but interestingly the helio X25 scores slightly higher than Kirin 955, which reflects MediaTek's processor. The design technology is still slightly stronger than Huawei HiSilicon.

Chinese mobile phone companies are also actively involved in the VR market. However, due to the weakness of GPU performance of MediaTek and Huawei HiSilicon, the experience of mobile phone-adaptive VR products introduced by these two mobile phone chip companies may not be too good.

MediaTek and Huawei Haisi also recognized the weakness of their mobile phone chips in the GPU. The GPUs of the next-generation mobile phone chips helio X30 and Kirin 960 of the two chip companies are still said to be ARM's Mali-T880, but the core has doubled to Eight cores, but from the Samsung Exynos8890 using the Mali-T880 MP12 is still slightly weaker than the Qualcomm Snapdragon 820 Adreno530 can be seen in the GPU performance is still behind Qualcomm.

Qualcomm's next-generation mobile phone chip Snapdragon 830's GPU will also be upgraded, it is said to use Samsung's 10nm process, GPU's main frequency from 624MHz to 720MHz, named Adreno540. Therefore, in the past two years, GPU Qualcomm will remain in the mobile market, and its performance advantages in GPU will help it continue to dominate the VR market.

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