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战斗力 鹅
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注册时间 2007-3-6
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本帖最后由 downforce 于 2020-11-21 07:51 编辑
原因是视频输出能力里4K@120Hz下只能YUV422。由此算下来的结果
4K@60Hz at 12-bit RGB = 32Gbps (8Gbps at 4 Lanes)
4K@120Hz at 12-bit 4:2:2 = 32Gbps (8Gbps at 4 Lanes)
来源HDTVTest@vincent_teoh
https://youtu.be/rpA4HfikU4w
We **ysed the HDMI 2.1 output from the Sony PS5 (Playstation 5) console, and found that the maximum bandwidth it can deliver either at 4K@60Hz or 4K@120Hz is currently 32Gbps, which is lower than the 40Gbps HDMI 2.1 bandwidth on the Xbox Series X.
Calculations:
4K@60Hz at 12-bit RGB = 32Gbps (8Gbps at 4 Lanes)
4K@120Hz at 12-bit 4:2:2 = 32Gbps (8Gbps at 4 Lanes)
Japanese teardown of Sony PS5, revealing HDMI 2.1 chipset from Panasonic Semiconductor Solutions/ Nuvoton Technology (MN864739):
https://www.4gamer.net/games/990/G999027/20201116053/
We are not sure if this Panasonic chipset is capable of 40Gbps or 48Gbps.
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