All grades are based on tests run by VpsBenchmarks on each VPS plan. There are 5 types of tests: web, sysbench, endurance, remote timings and network transfers. Each grade is the combination of one or more test metric.

A grade is calculated in each on of 5 categories: web, cpu, disk, network and stability. Each category grade is made of one or more metrics chosen in relevant test types.

Given a metric for a plan and a test, the grade for that metric is determined relative to the same metric from all other plans. A plan with a metric in the top 33% above the average will get an A, a plan with a metric in the bottom 33% below the average will get an F. Relevant single metric grades are then weighted and combined to give a category grade.

The overall score is the average of the grades in all categories brought into the [0 - 100] range.

Note: The VPS plan price is not a factor in calculating the grades. More expensive plans with higher specs are likely to get higher grades than cheaper ones.

Web Performance

The Web Performance is made of the Web test average response time and 99th percentile response time.

Raw CPU Power

The Raw CPU Capacity grade is made of the Sysbench CPU test number of operations per second and of the Endurance test number of iterations per hour metric.

Performance Stability

The Performance Stability grade is made of the Web test average response time standard deviation and the Endurance test number of iterations per hour standard deviation.

Disk IO Performance

The Disk IO Performance grade is made of the Sysbench test sequential disk write speed, randow read/write speed and of the Web test database average response time.

Network Performance

The Network Performance grade is made of web remote timimgs measured from West US, West Europe and Japan and of large file network transfer speeds.