anandtech说gtx570不支持音频源码输出(audio bitstreaming) 而pcpop说可以 我无奈了

overpro

anandtech 和 techspot 都说580 和570是不支持音频源码输出的，但pcpop说可以，我真是无奈了。

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anandtech:
anandtech.com/show/4051/nvidias-geforce-gtx-570-filling-in-the-gaps/2
Here it’s covered by the usual NVIDIA configuration of 2x DVI ports and 1x mini-HDMI port, with the second slot occupied by the card’s exhaust.  This also means the card can only drive 2 of the 3 ports at once, meaning you’ll need an SLI configuration to take advantage of NVIDIA/3DVision Surround. Meanwhile HDMI 1.4a for 3D video purposes is supported by the card’s mini-HDMI port, but audio bitstreaming is not supported, limiting audio output to LPCM and DD+/DTS.

techspot:
techspot.com/review/346-gigabyte-geforce-gtx-570/page2.html
Finally, the I/O end of the GeForce GTX 570 is identical to the GTX 470, featuring a vent across the top of the panel and a pair of DVI ports with a mini-HDMI port below. The display controller now supports HDMI 1.4a, though we should point out that full audio bitstreaming is not part of the deal, which was also the case with the GeForce GTX 470.

pcpop
pcpop.com/doc/0/606/606815_30.shtml
第31页：特色功能之战：支持音频源码输出
于是在全新设计的GF104核心中，NVIDIA加强了HDMI Audio，支持bitstreaming Dolby True HD和DTS-HD Master。如此一来，HD5000系列的一大技术优势将不复存在。

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要照这么看pcpop写的文章太鸡贼了啊，标题写：支持音频源码输出，内容却说的是gf104核心 跟570根本无关，幸好我又仔细搜索了一下才明白，否则岂不是白花两千多块

zyxbull2002

a卡在视频输入和输出，还有接口方面比n卡要好不少。。。。。。。。。。。。。。。。。