Performance - using Guid object or Guid string as Key
When using a Guid as an index for a Dictionary, is it better to use the Guid object, or the string representation of the Guid?

I just refactored some code which was using string to use the object, because there were new Guid() calls all over the place. But that left me wondering what the performance issues might be. (The collections are fairly small, but they get iterated lots of times.)
Performance - using Guid object or Guid string as Key
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When using a Guid as an index for a Dictionary, is it better to use the Guid object, or the string representation of the Guid?

I just refactored some code which was using string to use the object, because there were new Guid() calls all over the place. But that left me wondering what the performance issues might be. (The collections are fairly small, but they get iterated lots of times.)