Unverified84% confidenceDecision RuleTime unknown
A1/A2应用性能等级是针对手机/掌机APP随机读写优化的指标，A2卡在Steam Deck、Switch等运行程序场景表现更好，但对相机连续读写无帮助，选卡需分清用途
1
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84%
Confidence
Long-term
Relevance
-
First Seen
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UnverifiedA2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/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83% similarUnverified无人机和运动相机优先选A2应用性能等级的卡，A2随机读写更快(随机读≥4000IOPS)，对连拍缓存和多文件写入更友好79% 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79% 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77% similar
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