[brokencode]

Not really. They are both valid comparisons, since ARC is much easier to work with than manual management and can offer more predictable performance than GC. That said, it's also slower than manual management and can be trickier to work with than GC.

[pjmlp]

ARC is a GC implementation algorithm, you probably mean tracing GC algorithm.

"The Garbage Collection Handbook", chapter 5

http://gchandbook.org/