I'm wondering how to compare performance of EC2 instances with standard dedicated servers and desktop. I've found only comparance of defferent clouds.
I need to find a solution to perform some computations which require CPU and memory (disc IO is not used). The choice is to use:
- EC2 (High-CPU) or
- Xeon 5620/5630 with DDR3 or
- Core i7-960/980 with DDR3
Can anybody help, how to compare their performance? I'm not speaking about reliability of alternatives, I want to understand pros and cons from the point of just performance.