1. Compute - Processing
   1. Speed - Calculations per second per unit processor
      1. Clock Speed
   2. Parallelisation - Number of processors
      1. Number of cores
      2. Number of processors
      3. Number of logical processors
2. Memory -
   1. RAM
   2. For Drupal this is more
3. Storage -
   1. Data storage
   2. File Storage
   3. Caching
4. Network -
   1. rarely a bottle neck these days
   2. traffic
      1. within network
         1. whenever possible always prefer this
         2. secure
         3. low latency
      2. outside network
         1. integration with other services
         2. SAAS integration
            1. see if there are open source alternatives and if you can host them if latency is becoming an issue
            2. self hosting with monitoring and support the actual team is best case scenario
            3. or see if AWS has a similar service

Referenced in:

• resource-utilisation
• Amazon-Services
• IT-mentoring