Unverified85% confidenceTradeoffTime unknown
A2标准的随机读写(4K IOPS)明显优于A1,运行APP或作为Switch/安卓机运行盘选A2;但若仅作照片视频存储盘,A1与A2实际体验差异极小
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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UnverifiedA1/A2应用性能等级仅对运行APP的设备(如Switch、安卓手机、树莓派)有意义,A2要求随机读4000IOPS/写2000IOPS,纯拍摄设备无需为A2溢价84% similarUnverifiedA2性能依赖设备对A2标准的支持,若设备只支持A1,实际随机读写体验与A1卡差异不大84% similarUnverifiedA1认证保证随机读4000IOPS/写1500IOPS,A2认证提升到读4000/写2000IOPS,A2主要利好手机运行APP和游戏加载,对相机连拍和视频录制几乎无差别——买卡放相机不必为A2溢价买单80% similarUnverifiedA2等级在安卓设备作为应用存储时随机读写性能有优势,但在运动相机中A2标识基本无额外意义,选购时不必为A2规格额外加价79% similarUnverifiedA1/A2认证针对随机读写(运行APP),仅在把卡当手机/掌机扩展存储运行程序时才有意义;纯拍照录像看U/V标即可,A2对相机无用77% similar
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