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标题: [新闻] XBOX 天蝎支持 FreeSync 和 HDMI 2.1 ~~ ! [打印本页]

作者: npx 时间: 2017-4-11 21:23 标题: XBOX 天蝎支持 FreeSync 和 HDMI 2.1 ~~ !

http://www.eurogamer.net/article ... eesync-and-hdmi-vrr

https://www.youtube.com/watch?v=t18QbBdPK-8

Last week, we published the hardware spec for Microsoft's next Xbox - Project Scorpio. However, there was one little detail we held back, an aspect of the new console we didn't want to get lost in the noise. In the here and now its applications will be limited, but in the fullness of time, it may help to bring about a profound shift in how displays interface with games hardware. To cut a long story short, Scorpio supports AMD's FreeSync - and the upcoming variable refresh rate support baked into the next-gen HDMI 2.1 spec.

So what's the big deal here? In an ideal world, every single console game would run at 60fps, perfectly sychronised with the refresh rate of the attached display. This would result in a super-smooth, low latency gameplay experience - something you can see in the here and now in titles including the Forza Motorsport series and Halo 5. However, if a game targets 60fps and doesn't consistently hit the target, the experience is compromised in one of two ways.

First of all, if the game runs with v-sync enabled, frames are dropped and this introduces noticeable judder - what's happening here is that the game only has a small window in which to synchronise with the screen. If a frame renders over its 1/60th of a second budget, the GPU stalls, waiting for the next refresh. Alternatively, the developer may simply decide to drop synchronisation with the screen - when this happens, highly intrusive, ugly screen-tearing kicks in.

Adaptive refresh technology like AMD's FreeSync completely eliminates tearing and reduces stutter significantly by allowing the GPU to trigger the display refresh instead of adhering to a hard and fast 60Hz cycle. Essentially, the screen produces the next image immediately after the GPU finishes rendering it. The technology was pioneered by Nvidia's G-Sync, but it's the open standard variants - FreeSync and the upcoming HDMI 2.1 implementation - that Scorpio aims to supports. In fact, Microsoft has actually implemented the FreeSync 2 standard, meaning compatibility with HDR and full support across the range of potential frame-rates. Paired with a supported screen, this will even eliminate tearing on games running with adaptive v-sync with frame-rates under 30fps, something not supported on most FreeSync 1 screens (VRR range varied on a per-screen basis, with 40Hz to 60Hz commonplace).
So in the short term, what does this mean for prospective Project Scorpio buyers? How do you get to experience the new tech? Well, until the HDMI 2.1 standard is ratified, there are no living room displays that are VRR-enabled. To see the benefit, you'll need to have a PC monitor - a 4K one preferably, though 1080p screens will work - and it needs to support FreeSync over HDMI. This limits the amount of potential screens as it's more frequently run via DisplayPort, a video output that is not supported by Scorpio. Looking forward, a 4K HDR monitor with FreeSync 2 support really is the best way to ensure optimal results from this feature. In here and now, what we can say is that Scorpio's adaptive sync support is baked in at the system level - the developer doesn't need to worry about it (though they could enable higher frame-rate caps for VRR users if the overhead is there). And on top of that, it works across all Xbox content that runs on the new console - Xbox 360 back-compat titles and Xbox One games.

But it's the longer term outlook that is arguably more important. There's a reason why games target either 60fps or 30fps: both divide equally into the 60Hz output of a traditional screen, meaning a smooth, consistent update. With the display refresh put in the developer's hands, arbitrary performance targets like 40fps or 45fps could be targeted. We've tested both on PC using a G-Sync screen running games with Riva Tuner Statistics Server's frame-rate cap in place and both of these frame-rates look so much better than the console standard 30fps. With games that target 60fps, performance drops down to around 50fps are really difficult to pick up on owing to the lack of tearing and reduced v-sync judder.

记得之前 AMD 说过 HDMI2.0 不符合4K HDR标准....

AMD：HDMI 2.0接口不符合4K HDR标准：http://www.cnbeta.com/articles/tech/559959.htm

作者: Nemo_theCaptain 时间: 2017-4-11 21:26

这消息都反转了几次了……
一开始DF写着支持HDMI2.1，发出几个小时以后删了，现在又改回来了

作者: ngw39 时间: 2017-4-11 21:30

posted by wap, platform: iPad
LG要是出个4k 144hz freesync oled电视就好了

作者: jun4rui 时间: 2017-4-11 21:31

posted by wap, platform: Chrome

引用:

原帖由 @ngw39 于 2017-4-11 01:30 发表
LG要是出个4k 144hz freesync oled电视就好了

厂商都不愿意做啊，电视机成本会高很多，但是大部分看电视的人又用不上

作者: 错乱僧 时间: 2017-4-11 21:38

posted by wap, platform: Android

引用:

原帖由 @jun4rui 于 2017-4-11 21:31 发表
厂商都不愿意做啊，电视机成本会高很多，但是大部分看电视的人又用不上

在国美看了新出的LG g7,标价6万多，真tm薄，视觉效果很震撼，所以要做还是能做，只是游戏用电视还是受众小，不如把外形音响做好点更有卖点。

作者: achen126 时间: 2017-4-11 21:41

引用:

原帖由 jun4rui 于 2017-4-11 21:31 发表
posted by wap, platform: Chrome
厂商都不愿意做啊，电视机成本会高很多，但是大部分看电视的人又用不上

电竞电视机？想想也确实不靠谱，没人买...

作者: KoeiSangokushi 时间: 2017-4-11 22:00

这下是真的牛逼了！
总算可以实现4K+HDR+4:4:4了！
完美的色彩表现！
狂风大大应该入手！ @狂风007

作者: 狂风007 时间: 2017-4-11 22:02

引用:

原帖由 KoeiSangokushi 于 2017-4-11 22:00 发表
这下是真的牛逼了！
总算可以实现4K+HDR+4:4:4了！
完美的色彩表现！
狂风大大应该入手！ @狂风007

我入手也没用，现在我的B6 HDMI是2.0接口。

我说了，HDMI2.1接口的电视最快也要明年才能出。

作者: KoeiSangokushi 时间: 2017-4-11 22:03

引用:

原帖由 狂风007 于 2017-4-11 22:02 发表

我入手也没用，现在我的B6 HDMI是2.0接口。

我说了，HDMI2.1接口的电视最快也要明年才能出。

不过说实话，感觉天蝎座还真的是诚意十足

作者: yfl2 时间: 2017-4-11 22:05

有这功能的电视机估计很少
倒是可能会有一些支持的显示器

作者: 咪咪好大啊 时间: 2017-4-11 22:06

天蝎真的是越来越牛逼了，出了就买，少废话！

作者: 狂风007 时间: 2017-4-11 22:06

引用:

原帖由 错乱僧 于 2017-4-11 21:38 发表
posted by wap, platform: Android
在国美看了新出的LG g7,标价6万多，真tm薄，视觉效果很震撼，所以要做还是能做，只是游戏用电视还是受众小，不如把外形音响做好点更有卖点。

游戏用电视在国内是小众罢了，在欧美日发达国家，因为主机是游戏业的主流，所以电视厂家都很重视自己电视对主机的支持的。

LG的OLED电视在去年PRO刚出时和PRO的HDCP有冲突BUG，LG第一时间放出固件升级解决问题，然后很快推出了支持HDR游戏模式的新固件。

作者: ngw39 时间: 2017-4-11 22:07

posted by wap, platform: iPad

引用:

原帖由 @yfl2 于 2017-4-11 22:05 发表
有这功能的电视机估计很少
倒是可能会有一些支持的显示器

HDMI 2.1支持10bit色的4k HDR，提高观影效果电视厂们会上的

作者: 狂风007 时间: 2017-4-11 22:09

引用:

原帖由 KoeiSangokushi 于 2017-4-11 22:03 发表

不过说实话，感觉天蝎座还真的是诚意十足

如果真的是HDMI2.1那的确有诚意，这个真是超前啊。

HDMI2.1就可以实现真正的4K HDR RGB了。

Pro现在的4K HDR YUV是压缩过色彩的，明显比RGB差

作者: yfl2 时间: 2017-4-11 22:10

引用:

原帖由 ngw39 于 2017-4-11 22:07 发表
posted by wap, platform: iPad
HDMI 2.1支持10bit色的4k HDR，提高观影效果电视厂们会上的

2.0不支持？
2.1新增的是4k hdr下的444模式吧？这个对视频没啥用，因为视频没有这个格式的，可变帧率对视频也没用

作者: 讴歌123 时间: 2017-4-11 22:40

posted by wap, platform: iPhone
妈的我电视又不支持HDMI 2.1……

作者: yfl2 时间: 2017-4-11 22:41

引用:

原帖由 讴歌123 于 2017-4-11 22:40 发表
posted by wap, platform: iPhone
妈的我电视又不支持HDMI 2.1……

未来支持的电视也基本不会带这个功能

作者: arex 时间: 2017-4-11 22:43

能给支持下DP吧，没啥难度的东西，以后破解了连显示器方便

作者: 讴歌123 时间: 2017-4-11 22:45

posted by wap, platform: iPhone

引用:

原帖由 @yfl2 于 2017-4-11 22:41 发表
未来支持的电视也基本不会带这个功能

应该是给显示器用的吧，肯定不会有电视支持freesync的

作者: yfl2 时间: 2017-4-11 23:01

引用:

原帖由 讴歌123 于 2017-4-11 22:45 发表
posted by wap, platform: iPhone
应该是给显示器用的吧，肯定不会有电视支持freesync的

显示器倒是都可以，dp也支持

作者: ㄟ(￣▽￣ㄟ) 时间: 2017-4-12 00:14

引用:

原帖由 arex 于 2017-4-11 22:43 发表
能给支持下DP吧，没啥难度的东西，以后破解了连显示器方便

Posted by: motorola Nexus 6
？？？

作者: 论坛之星 时间: 2017-4-12 01:08

所以最佳配备是支持hdmi2.1和freesync2的显示器了吧

作者: 加州IT男 时间: 2017-4-12 06:37

posted by wap, platform: iPhone
AMD是想推广Freesync over HDMI吧
这个以后电视厂肯定要支持的

本帖最后由加州IT男于 2017-4-12 06:38 通过手机版编辑

作者: DVDRiP 时间: 2017-4-12 06:45

posted by wap, platform: iPhone
今年可以不换电视了

作者: celegorm 时间: 2017-4-12 09:45

posted by wap, platform: Android
电视厂的阴毛

作者: tommyshy 时间: 2017-4-12 09:55

FreeSync效果好像比G-Sync差得远吧

作者: zenhigh 时间: 2017-4-12 10:03

FreeSync 2.0的好处是实现低延迟HDR，而且蝎机用的是AMD芯片，FreeSync等于是赠送的福利，不用白不用啊

作者: yfl2 时间: 2017-4-12 10:20

posted by wap, platform: 红米Note3

引用:

原帖由 @Epilogue 于 2017-4-12 10:12 发表
主机上FreeSync有啥用，看不懂

比如现在有些游戏不设30cap,帧数波动反而不爽，有这个会好很多

作者: 阿卡 时间: 2017-4-12 14:09

现在是的HDMI2.0是RGB444 8BIT 4K@60Hz，遇到了HDR，哪怕你不调试，实际输出的图像格式也会自动给你压缩成YUV420的……
虽然4K UHD的格式就是HDR BT2020 YUV420 10bit，但是游戏可以不用YUV420了，以后HDMI2.1直接10bit HDR 4K RGB 60Hz输出……当然写轮眼估计都很难看出和以前的区别

作者: teppa 时间: 2017-4-12 22:58

首先电视得可变刷新，要不然玩游戏离显示器功能还远。

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