With the successive shipments of the three major VR devices, VR has once again become the focus of people's hot discussion. The PC VR's demand for graphics cards is extremely high. It is evident from previous investigations that less than 1% of PCs in the world can support VR devices. This also made Nvidia and AMD, two major video card makers, once again saw new business opportunities after experiencing the PC downturn. In addition to vigorously supporting various VR devices and launching their own VR-optimized SDK and rendering technology, AMD has also begun to raise the idea of ​​hardware.
Monocular 4K VR device
Yesterday, at the Virtual Reality World Congress VRDC held in Bristol, UK, Roy Taylor, AMD’s global vice president, announced that AMD is developing a head-mounted VR helmet. Although there is no real capacity, AMD said that the VR device has a single-eye resolution of 4K (4096×2160) and a refresh rate of 122 Hz.
What is the concept of this figure? In contrast, the currently recognized best three VR devices, the PC-powered HTC Vive and Oculus Rift, can only achieve a monocular 1080x1200 resolution and a 90 Hz refresh rate.
The resolution and refresh rate together determine the VR helmet's screen display effect. The screen resolution will appear when the resolution is low, and the low refresh rate will cause the screen to flicker and shake, which will cause vertigo and vomiting.
At present, even the HTC Vive and Oculus Rift requirements for graphics cards have reached the GTX970 benchmark, and monocular 4K is afraid that even the four-way Titan is difficult to control.
But don't think too much, because this device is said to only be used as an internal test for a period of time in the future to promote its own Liquid VR technology.
In addition to publishing its own VR products, Roy Taylor also said that it will launch a new FirePro graphics card next week, it is said that it will carry 32GB of video memory, and is designed for VR, but did not disclose other more information .
"Want to play VR? First buy a professional VR video card."
Sulon Q Head Mounted Machine
However, this is not the first time that AMD has set foot in VR hardware. As early as March of this year, GDC 2016, AMD and Sulon released a VR+AR headset wearer Sulon Q.
Allegedly, Sulon Q equipped with AMD FX-8800P APU, 256GB solid state hard drive and 8GB of memory, built-in Win10 system, resolution of 2560 × 1440.
Although the integrated GPU core performance in the FX-8800P still has absolute performance advantages compared with other VR devices based on mobile phones such as Gear VR, it is at best comparable to that of the GT630, and the performance of the PC VR in the GTX970. The demand is not at all in one grade.
Even if it is compared with the PS4 (the graphics card is equivalent to the GTX650Ti level) is also a lot worse, the entire hardware + system software forced to put on the helmet is also like a VR machine that has previously been criticized by the practice, put the Win10 into the helmet, I am afraid This is really the first case.
It's curious that this helmet will be multiple, whether it will be equipped with cooling fans.
1700Hz display technology
Although Nvidia did not make some raid hardware, but it is not surprisingly dead -
Our new technology can bring the refresh rate to 1700Hz and completely eliminate the delay problem.
For the concept of refresh rate, we can simply understand that 90Hz (HTC Vive and Oculus Rift refresh rate) means that it can display 90 frames in one second, and 1700Hz (after applying this black technology) It can realize the presentation of 1700 frames per second, which also solves the problem of dizziness caused by high delay rate.
This technology was announced and demonstrated at last week's GTC 2016:
At the scene, Nvidia placed a display with its own Logo on the track, moved quickly back and forth, and shot it with a high-speed camera, and the resulting picture was still legible.
In other words, if the technology on this display is applied to the head-up screen, it can theoretically support a refresh rate of up to 1700 Hz.
NVIDIA did not disclose further details of this technology, nor did it disclose when the technology could be put into commercial use.
In addition, it should be noted that the refresh rate of the display screen does not equal the actual screen effect of the final game. Nvidia used static images to demonstrate the new technology on the spot. In the display process of a real game screen, it is impossible to achieve such a high refresh rate because real-time calcula- tions are required at the same time.
postscript
To sum up, in fact, although the current two graphics card manufacturers have frequent black technology, none of them can really get on the table:
Monocular 4K VR devices are currently not practical. Just today, a reporter from Lei Fengwang (searching for the "Lei Feng Net" public number) reporter went to participate in the Vive offline experience. The HTC staff on the venue said:
"Vive is not unable to achieve higher resolution, but because the existing graphics performance is not sufficient to meet the conditions for higher resolution. Considering the current market conditions, we cannot choose TitanX in order to improve the performance of the game. (Nvidia's high-end graphics card starts at 8000+)."
Sulon Q can also be said to be just a "drinking product." Although the VR all-in-one is the ultimate development direction of VR headsets, at least for the moment, relying on the powerful performance of the PC is still the best solution. As the first VR integrated machine equipped with Win10 system, optimization at the software level will also become a big problem.
The 1700Hz refresh rate technology is just a kind of screen display technology. In contrast, the G-SYNC technology previously used by NVIDIA to enhance the game display screen is no different, but it is even more exaggerated. This kind of exaggeration is not Will bring great significance to the real VR game effect. After all, monitor refresh rate and game frame rate are two concepts.
So, in the end, in fact, the two manufacturers still want to stand on the VR of the wind with some gimmicks to sell more graphics cards. In this regard, Xiao Bian just wanted to say:
More sincere and less routine.
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