Just wanted to show a simple table comparison regarding CPU, memory, storage, I/O and cost for each Windows Azure VMs (Compute Instances).
Compute Instance Size
CPU
Memory
Instance Storage
I/O Performance
Cost per hour
Extra Small
1.0 GHz
768 MB
20 GB
Low
$0.05
Small
1.6 GHz
1.75 GB
225 GB
Moderate
$0.12
Medium
2 x 1.6 GHz
3.5 GB
490 GB
High
$0.24
Large
4 x 1.6 GHz
7 GB
1,000 GB
$0.48
Extra large
8 x 1.6 GHz
14 GB
2,040 GB
$0.96