Creating files in Objective-C

Which one of these 2 cases is faster in creating files?

Case 1:
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NSData *data = [Some data];
[data writeToFile:filePath atomically:YES];

Case 2:
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NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager createFileAtPath:filePath  contents:da开发者_开发问答ta attributes:nil];

Thanks Biranchi.

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Why are you worrying about this... Are you going to be writing data frequently.. at like 60 FPS ?.. or 60 SPS (Saves per second) :D

Use any of the above