Contabo vs IO Zoom

Contabo
IO Zoom

This page was updated with new data on August 14 2019.

We have tested 3 VPS plans from Contabo and IO Zoom. This page is a summary and comparison of all test results for those 2 providers.


VPS Plans

Plan Name Monthly Price CPU cores Memory (GB) Disk Space (GB) Data Transfer (GB) Latest trial
Contabo S SSD €4.99 4 8.0 200 10000 May 07 2019
IO Zoom KVM 2GB $8.00 1 2.0 20 2000 Dec 18 2018
IO Zoom KVM 8GB $30.00 4 8.0 80 6000 Feb 06 2019

Performance Grades

To summarize the performance of each VPS plan, we generated grades based on the various tests that were run: web, sysbench, endurance and remote timing tests. Each grade focuses on one aspect of the VPS speed or stability (cpu, disk IO, network IO...) and is made of one or more metrics measured during the tests.

Grades are evenly distributed between A and F. A is best, F is worst.

Follow the letter links to find the test results backing the grade.

How are grades calculated?

Plan Name Web Perf Raw CPU Power Perf Stability Disk IO Perf Network Perf
Contabo S SSD
€4.99
F B F F E
IO Zoom KVM 2GB
$8.00
E F D C D
IO Zoom KVM 8GB
$30.00
E B C C D
Show Price Weighted Grades   

VPS Instance Provisioning Time

This is the average time it took to create an instance for Contabo and IO Zoom from instance order to instance accepting connections.

All VPS provisioning times

Contabo IO Zoom
Number of instance creations in sample 1 2
Provisioning time in seconds 1200s 4100s

In Depth...

The grades above are based on the following test results.


Web Response Times

We ran a database intensive web application with ~100,000 hits per day for several days on cloud servers from Contabo and IO Zoom. This is the average response time measured locally on the VPS for each plan we tested.



Local Response Time per Plan

Lower is better

Provider Plan Average response time
IOZoom KVM 2GB 92.0ms
IOZoom KVM 8GB 84.0ms
Contabo S SSD 165.0ms

During the Web Test, we collect response time metrics, CPU metrics and database performance metrics. All of those are measured locally on the VPS running the web server. All metrics can be compared on the Web Performance Comparison page.


Sysbench CPU Performances

We ran the full suite of Sysbench tests on VPS plans of Contabo and IO Zoom. These are the Sysbench CPU test results:



Rate of operations

Higher is better

Provider Plan Operations per second
IOZoom KVM 2GB 291.5
IOZoom KVM 8GB 1135.8
Contabo S SSD 1009.2

Sysbench test results are also available for random disk IO tests, sequential disk IO tests and memory tests.

Review and compare all Sysbench numbers on the Sysbench Comparison page for Contabo and IO Zoom.


Remote Timings

During the entire duration of the web performance test, we collected web response times from 5 different locations in the world. The chart below reports the connection establishment time + TLS handshake latency from all 5 locations. (That excludes the time spent on the server that is already measured in web response times above and it also excludes the DNS resolution time since it is not dependent on the provider).


Remote Latency per Plan

Lower is better

Provider Plan Average remote request duration
IOZoom KVM 2GB 376.4ms
IOZoom KVM 8GB 337.6ms
Contabo S SSD 502.6ms

Detailed remote timings measurements including connection time, TLS handshake time, and response time can be compared for Contabo and IO Zoom on the Remote Timings Comparison page.


Network Transfers

We have performed large file transfers from the Contabo and IO Zoom VPS and we measured the speed of downloads and uploads.

The transfers involve multiple files, 10 threads and last for at least 10 seconds at maximum speed. The transfers are repeated 3 times from different servers and only the fastest transfer is reported here.


Download Speed per Plan

Higher is better

Provider Plan Network Download Speed
IOZoom KVM 2GB 276.0Mbps
IOZoom KVM 8GB 224.6Mbps
Contabo S SSD 198.5Mbps

Network Transfers measurements including download and upload speeds can be compared for Contabo and IO Zoom on the Network Transfers Comparison page.


Sustained CPU Endurance Tests

We pushed the CPU of those VPS plans hard for 24 hours straight.

This test shows how fast the VPS can go for long periods of time, how stable the performance is and it also gives clues on how overallocated the VPSs may be.


Average number of operations per hour

Higher is better

Provider Plan Average ops/hour
IOZoom KVM 2GB 898.2
IOZoom KVM 8GB 4125.4
Contabo S SSD 4435.3

Review and compare endurance test results for Contabo and IO Zoom on the Sustained CPU Endurance Comparison page.


Features and Usability

Features not included in the VPS price of the plan will be marked as missing but they may be available for the fee.

IO Zoom Review Contabo Review
Hourly Billing  No No
DDOS Protection  Yes Yes
Backups  Yes Yes
Control Panel  Builtin custom
SSH Keys Setup  No No
Total Number of Datacenters  5 2
Number of Datacenter Continents  1 1


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