Deeply reveals the quality of the Z4X screenless TV system.

Hello, everyone, in the previous article, the old demon I introduced to you all about the unboxing, disassembling, sound and picture quality capabilities of the Z4X screenless TV.

The old demon I pursue the principle of "no limit is not measured", so this article will show to the majority of Shaoyou Zimi extreme Z4X capabilities! When you read this article, you will have a precise understanding of the range of capabilities (boundaries) of the Z4X.

First, give the system basic information, you can simply look at it.

CPU-Z information:









Use V4.1.3 to follow the 2014 Andrews box horizontal evaluation criteria.

Memory throughput test

Memory is the core component of the projection box. In the von Neumann architecture, memory is connected to all other components. Memory throughput refers to the rate at which information is stored or retrieved from memory. It affects all other extreme performances of the box, such as network speed, play rate, interface rate, and so on. The memory throughput is not only related to the memory, but also related to the CPU, and even related to the bus bandwidth, which is a concentrated expression of the internal rate of the box.

The Z4X is equipped with 2GB of high-speed memory. The old demon I use the following command to test its memory throughput:

Time dd if=/dev/zero of=/dev/null bs=41943040 count=200

(40M has exceeded the size of CACHE and will cause TLB, thereby eliminating the impact of CACHE)

Test three times in a row and average the results as follows:









1. Hard solution to play the huge bit rate video in the built-in hard disk;

2. Two USB interfaces insert storage devices to copy data;

3. Use Thunder to download videos over the Internet to the internal hard drive.

USB3.0 speed test

Use the following command to test the USB3.0 interface speed:
(of=/dev/null does not generate writes and can be used to test pure read speeds)
Time dd if=/mnt/usb/sda2/test.bin of=/dev/null
(If=/dev/zero does not generate a read, it can be used to test the write speed)
Time dd if=/dev/zero of=/mnt/usb/sda2/test1.bin bs=1048576 count=1024

U disk using a SSD technology (SANDISK EXTREME USB3.0 Extreme Extreme 64GB), exFAT file system, the following figure is its speed (computer test):











This test illustrates:

1. Z4X USB3.0 interface speed has reached the requirements of ordinary USB3.0 mobile storage devices, so although you feel comfortable buying ordinary USB3.0 mobile storage devices, Z4X will not become a bottleneck in speed, including flash drives and mechanical hard drives . Of course, the SANDISK EXTREME USB3.0 Extreme 64GB that I tested for the old demon is far beyond the scope of ordinary USB3.0 devices. It is a wolf dressed in sheepskin (an SSD with a USB coat).

2. Z4X's USB3.0 interface speed has exceeded its network speed, so you can use the Z4X with a USB3.0 storage device (or SATA hard disk) to make it a NAS.

3. The USB 3.0 interface speed of Z4X will not become a bottleneck for the playback of large-rate movies. Therefore, it is recommended to use USB3.0 storage devices to play large-rate movies.

If calculated according to the reading rate of 33MB/S, the maximum playable video bit rate of the Z4X is 264 Mbps through the USB 3.0 interface. However, please note that 220Mbps is the peak bit rate of 4K movies, that is to say, Z4X USB3.0 interface rate, fully meet the 4K original disk playback needs. Video over 220Mbps, even if you can find it, is almost always test video (for example, ducks fly).



4K video playback test

First of all, the Z4X is 4K-compatible, not 4K, and 1280x800.

4K test movie list:



4K video test shots: smooth, rich colors, rich details.







Play 4K video while monitoring the CPU usage of the Z4X. Extremely low CPU usage confirms that it is really hard to solve 4K video:







Hard solution is normal:







Hard solution H.265 compressed video, Sohu encoding:




















Z4X as a client, PC as a server, and a full Gigabit network environment, the commands used are:

Time dd if=/mnt/samba/192.168.1.10/Movies/1080PTestB.ts of=/dev/null

First test the performance under the WIFI environment. The router used for the test is a full Gigabit dual-band router. The Z4X is 1.5 meters away from the router and is slightly obstructed.

Connect WIFI 2.4G network:

















However, please note that in the case of full Gigabit routing + WIFI 5G, Z4X SMB speed only reached the level of 100M network. (Note: SMB speed does not represent the Z4X WIFI 5G limit speed, WIFI 5G limit speed need to use iperf test)

Next, we tested the performance of the wired network environment. The router used for the test was also a full Gigabit dual-band router. The router was connected to the Z4X using a Category 6 network cable.

The SMB limit rate under the wired network was tested as: 11.01MB/S = 88Mbps. Remove the error. This value is basically the same as the SMB limit rate in the WIFI 5G network.





(300-second Server-Side Benchmark): In the 300-second test, the stability of the wired network can be described as very good. The average speed in 300 seconds is 10.725MB/S, which is about 85.8Mbps.









Recall that the SMB limit rate is 88 Mbps and the NFS limit rate is 0 Mbps (not supported). A simple calculation with the 300-second Client-Side Benchmark gives a comparison of optimization rates:





Local media playback test

Local media player capability is valued by many enthusiasts. In this session, the old demon I expanded the audio-visual sample used in the 2014 Hengping review, as shown in the following figure:







Also note that the two duck-child fly MKV videos with bit rates of 108 Mbps and 248 Mbps could not be played, suggesting that the Z4X may not currently support oversized bit-rate movies.

Of course, in addition to media format compatibility, another important indicator is the ability to broadcast control. Z4X's broadcast control capability is still quite good, with drag and drop selection, audio adjustment, picture ratio switching, image mode adjustment, subtitle selection, 3D settings, audio track switching and other functions.













1. The 3D picture is normal and the picture is not flickering or dizzy.

2. 3D original, up and down 3D, left and right 3D, broadcast control is normal.

3. In various 3D modes, the built-in and external subtitles are normal.

4. The 3D picture has outstanding color, strong sense of hierarchy and high recognition.

5. Can play 3D-4K videos.

Airplay mirror test

This function is also able to transfer the images on the iPhone, iPad and Macbook to the projection in real time. This function can also be used as a gravity sensor for iPads and iPhones and gravity sensing games on the large screens of TVs. This function is also very useful in education, training, and conferences. It allows the speaker to speak through a handheld smart device (iPhone, iPad) or PC, to be presented on a large-screen projection, and because it is through the WIFI signal, Traditional Bluetooth and other methods have no restrictions on the distance of the venue, and it is extremely convenient for multiple speakers to switch. So if you think that Z4X is only used in home environment, it will be too small to see it, and it has its place in business, but it is not as good as Z4 Air.

iPhone wireless screen:



















In terms of music, Mami and Baidu teamed up and built Baidu music in the Z4X, with tens of millions of music library resources and hundreds of radio stations. However, the code rate of music is not very high. We hope to join the membership portal and enjoy high-quality lossless music.







With such a large screen, it would be a pity if we didn't play something. Z4X has a large number of small games built in that will make you entertain. Of course, if you are a serious game enthusiast, you can also connect PS, XBOX and other professional game consoles to enjoy the pleasure brought by the giant screen.







The Z4X app store feels good. The first is the large number of applications and the quality is good; then the classification is also relatively clear, taking care of users of different ages. Demonstrating that the pole meter is really taking care of it.







If you want Thunder to use cool remotely, then you'd better be a Thunder paid member, so as to ensure the download speed.













1. The interface does not show vip.

2. The download progress is not real-time.

3. It is recommended that the meter use ntfs commercial drivers to support NTFS writes. (Already feedback to the meter, currently being optimized)

Extreme meter assistant test

The Mi Mi Assistant is a Z4X mobile terminal control app that can be used as a substitute for a remote control or a mouse. It has full control over the Z4X. What is commendable is that its operation delay is very small and the experience is very good.





postscript

As of this writing, there is no need to say anything more. The performance of the Z4X is impressive, and it can be said that it is a product that is extremely well-made. The current price of 2699 is excellent value for money. Some of the bugs and imperfections mentioned in the article are basically concentrated on the firmware level, and it is not difficult to solve them.

80 Plus Bronze

80 Plus Bronze

Boluo Xurong Electronics Co., Ltd. , https://www.greenleaf-pc.com