Extensive Benchmarks Of Amazon's EC2 Compute Cloud Performance

All of the high-memory Amazon instances (m2.xlarge, m2.2xlarge, and m2.4xlarge) performed about the same.

With the Parallel BZIP2 compression benchmark, the performance differences between the various instances are clearly visible and scales well up to the point of the 26 EC2 Compute Units on the m2.4xlarge and it being twice as fast as the 13 EC2 Compute Unit m2.2xlarge version.

The high-memory instances did the best when it came to the Stream system memory benchmark, to no surprise.