Unverified82% confidenceTradeoffTime unknown
采集卡分MJPEG压缩输出和YUV无损输出两种，压缩卡会占更多CPU解码资源且画质有损但便宜，UVC免驱无损卡对CPU压力小，长时间直播建议选无损YUV输出
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82%
Confidence
Long-term
Relevance
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Unverified免驱UVC采集卡在多台电脑或不同OBS版本上可能出现分辨率/帧率识别不全的问题，需在采集设备属性中手动切换视频格式（MJPEG/YUY2/NV12），YUY2无损但带宽占用高，MJPEG压缩省带宽但画质略降78% similarUnverified硬件编码卡（内置H.264/H.265芯片）能显著降低CPU占用，适合老旧电脑或边直播边玩游戏；纯软件（免驱）卡依赖电脑CPU编码，低配电脑易掉帧72% similarUnverified内置采集卡采集画质越高对PCIe带宽和存储要求越高，1080p60硬件编码可省资源但画质轻微损失；追求画质用无损但需高速SSD和大带宽，两者不可兼得需按用途取舍72% similarUnverified独立(一体机)方案免线缆自由度高但算力受限画质打折，PC VR画质天花板高但需高性能显卡+线缆或无线串流，串流会引入延迟和压缩损失72% similarUnverified带硬件编码的采集卡能降低CPU占用但会引入额外延迟，追求实时监看应选免驱UVC直通卡而非硬编码卡71% similar
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