Tegra 4 has attracted much attention since its release on CES2013 at the beginning of the year. It is the world's first quad core processor based on Cortex-A15. In addition to the strength of the CPU, it also has 72 Geforce ULP processor units, six times as many as the previous generation. How strong is this "stacking" performance monster? The object of this test is the world's first Tegra 4 tablet 。

This test is divided into three parts, hoping to experience the strength of Tegra 4 from the AT703. The comparison object is the Galaxy S4（）, which uses the Samsung Exynos 5410 processor. This comparison is also the only two quad core A15 processors on the market. Tegra 4 on AT703 is manufactured with quad core A15 1.8GHz, 28nm HPL (HKMG) process and equipped with Geforce ULP (72 processing unit). The Exynos 5410 on the I9500 contains a quad core A15+quad core A7 architecture core, with frequencies of 1.6GHz and 1.2GHz, 28nm HKMG process, and PowerVR SGX544MP3 (533MHz). This test is divided into CPU, GPU and decoding capability.

CPU

Both use a quad core A15 processor, but the AT703 is 200MHz higher than the I9500. What's the difference in actual performance?

Theoretical score

Antu rabbit evaluation

AT703▼

I9500▼

Although both of them have more than 28000 points, we can still find many problems from a small point of view. First, because of the high resolution, the AT703's 3D drawing performance score is very low, and there is no comparability. What we are interested in is the performance of Tegra 4 at 1080P resolution. In terms of CPU and RAM performance, the AT703 has to leave the I9500 far behind. In addition to the frequency gap, it is more related to the frequency reduction of the I9500 itself.

Vellamo

AT703▼

I9500▼

This is a web testing software launched by Qualcomm. The difference between the scores of the two is not large. The AT703 is higher. In particular, HTML5 still maintains an absolute leading edge in the absence of a test item score.

AT703， 29.9s▼

I9500, 33.9s▼

The test is the floating point performance of the CPU. This application is very similar to the SuperPi commonly used in PC evaluation. The AT703 achieved good results, breaking the 30s threshold (the lower the better), which is also the fastest machine tested by Xiaobian. The I9500 is also very good, and the 33.9s score is also among the best in mobile phones.

General performance test

PS: Since AT703 cannot complete the Sunspider test, we have to give up this web page Javascript test.

Video soft solution

Video software decoding is also an important test project to measure the general performance of the CPU. This test project tests the multithreading performance of the CPU, which is different from the video hard solution. It is a method to test the general computing power of the CPU, and multi-core processors will be used. The following tests use BSPlayer version 1.9.

AT703， Average 40 frames ▼

I9500， Average 37 frames ▼

In addition to the CPU performance, we added CPU frequency detection to the soft solution test. It can be seen that the AT703 is stable at the quad core 1.6GHz, while the I9500 runs at the quad core 1.2GHz most of the time, but the final frame number is not as big as the frequency gap seems.

GBA simulator

AT703， 186.63FPS▼

I9500， 144FPS▼

Load a BIOS.zip to test the general performance of the CPU using the built-in frame count detection. The AT703 continues to show its amazing strength, leaving the I9500 far behind.

The following video is a test comparison of two devices in web page loading, application installation and compressed folder, which can be used as a reference for CPU general performance ▼

GPU

The Geforce ULP on Tegra 4 has up to 72 "cores". Although the old architecture is still used, its performance is extremely powerful due to this crazy heap. What about the confrontation between it and PowerVR SGX544MP3? In addition, because the resolution of the AT703 is up to 2560 * 1600, which is not at the same level as the 1080P screen on the I9500, you only need to see the Offscreen test results or some fixed resolution test results in the comparison.

Theoretical score

GFXBench 2.7.2

AT703， GFXBench 2.7 T-Rex HD Offscreen：16fps，GFXBench 2.5 Egypt HD Offscreen：43fps▼

I9500， GFXBench 2.7 T-Rex HD Offscreen：12fps，GFXBench 2.5 Egypt HD Offscreen：43fps

For the old GPU performance test, the requirements for GPU performance are more stringent after the 2.7 version. At the same time, the 2.7 version includes the 2.5 Egypt HD test. In the Offscreen test, the frame number of the AT703 is higher than that of the I9500 under the GFXBench 2.7 T-Rex HD test, and the two are tied in the 2.5 version.

BaseMark X

AT703， Offscreen：10.222FPS▼

I9500， Offscreen：8.843FPS▼

This test uses Unity 4.0 engine, introduces a large number of particle effects, advanced lighting effects and post-processing, which will exert great pressure on the GPU of the mobile phone. We can directly ignore the performance of OnScreen. The AT703 in Offscreen is more than one frame higher than the I9500, showing strong ▼

3DMark

AT703▼

I9500▼

In the test of 3DMark, except for Test1, the AT703 outperformed the I9500, showing the amazing strength of Tegra 4.

Anthare 3D

AT703， Average frames: 11.1 FPS ▼

I9500， Average frames: 10.7FPS ▼

There is not much difference. The Offscreen test is carried out here, and the resolution is 1024 * 2048. It is strange that the Offscreen test of Anthare 3D is not a common resolution of 720P or 1080P, but a resolution of 1:2 scale and ultra-high resolution.

Comparison chart:

PS: Because the resolution of the AT703 is too high, and the current games do not support this resolution very well, the game testing is meaningless. But now Tegra 4 specific games have appeared, and the following are the effects of Rapids 2 under the highest special effect (except Tegra 4, other SoCs can't turn on the highest special effect) (click to view the large picture):

What we hope to get in touch with is the Tegra 4+1080P equipment. What we care most about is the matching performance.

Hardware decoding performance

The I9500's decoding performance in the evaluation is impressive. And the hardware decoding performance of Tegra 3 is enough to beat the SoC in the same period. Will Tegra 4 perform better? We also use some videos to test the decoding performance of these two products. The test player is BSPlayer+MXLayer.

Video list:

720P group

FLV AOM OP, 1280 × 720, H.263

MP4 Jay Chou's Double Cut Staff, 1280 × 720, H.264 High Profile L5.1， Bit rate 17M

AVI The Circle of Realm trailer, 1280 × 720, Xvid

WMV Microsoft WMVHD official video, 1280 × 720, VC-1, MP@HL

RMVB Dark God Theater, 1280 × 720, RV40

FLV Lord of the Rings, 1280 × 720, HEVC, 1000kbps

1080P group

MP4 Clannad OP ，1920×1080，H.264 High Profile L5. ref16

MKV Conan Theater Edition 15 trailer, 1920 × 1080, H.264 Main Profile L4.0， Audio coding AC-3

WMV Microsoft WMVHD official video, 1440 × 1080, VC-1, MP@HL

MKV Fate stay night [Realta Nua]，1920x1080p，Hi10P，23.976fps

FLV Lord of the Rings, 1920 × 1080, HEVC, 1200kbps

MP4 2160×1440，ref3，fps=30

MP4 38×2160，ref3，fps=24

Playback:

From the perspective of decoding performance, these two devices are among the best Android devices. The AT703 is more powerful, and even can hard understand 2160P video. Although the performance of HEVC and 10bit videos is not very good, it is enough for ordinary users.

summary

Through a series of comparative tests on the AT703 and I9500, we believe that everyone has a certain concept of the performance of Tegra 4. From the perspective of CPU performance, Tegra 4 can be said to be the leader in mobile SoC by virtue of the strong computing performance of high-frequency quad core A15. In terms of GPU, Tegra 4 can basically suppress SGX544MP3. In terms of decoding performance, Tegra 4 inherits the strong performance of previous generation products and still has unique advantages in this respect. Of course, these tests are based on the Tegra 4 on the tablet. We look forward to the performance of the "full blood" Tegra 4 on the NVIDIA "son" shield and the performance of the Tegra 4+1080P mobile phone.