IONOS by 1&1 vs BuyVM

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We have tested 9 VPS plans from IONOS by 1&1 and BuyVM. This page is a summary and a comparison of all test results for those 2 providers.

IONOS by 1&1

IONOS by 1&1 was founded in 1988.
It is headquartered in Germany.
It employs 7000 people.
It offers Web, Wordpress, Dedicated and VPS hosting products.

It has datacenters in:
  • Germany
  • Spain
  • United Kingdom
  • United States


BuyVM was founded in 2010.
It is headquartered in the USA.
It offers VPS hosting products.

It has datacenters in:
  • Luxembourg
  • USA

VPS Plans

Plan Name Monthly Price CPU cores Memory (GB) Disk Space (GB) Data Transfer (GB) Latest trial
Slice 1024 $3.50 1 1.0 20 10000 Dec 07 2019
Slice 2048 $7.00 1 2.0 40 10000 Jun 06 2020
Cloud Server S $8.00 1 1.0 40 10000 Nov 11 2019
VPS M $10.00 2 2.0 80 May 26 2020
Cloud Server M $16.00 2 2.0 60 9999 Aug 29 2019
VPS L $20.00 2 4.0 120 Apr 08 2020
Cloud Server L $24.00 2 4.0 80 9999 May 04 2020
Cloud Server RAM L $40.00 2 8.0 80 Jan 11 2020
Cloud Server XL $50.00 4 8.0 120 9999 Feb 27 2020

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
Slice 1024
Slice 2048
Cloud Server S
Cloud Server M
Cloud Server L
Cloud Server RAM L
Cloud Server XL
Show Price Weighted Grades   

VPS Instance Provisioning Time

This is the average time it took to create an instance for IONOS by 1&1 and BuyVM from instance order to instance accepting connections.

All VPS provisioning times

IONOS by 1&1 BuyVM
Number of instance creations in sample 10 4
Provisioning time in seconds 225s 2250s

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 IONOS by 1&1 and BuyVM. This is the average response time measured locally on the VPS for each plan we tested.

Local Response Time per Plan

Lower is better

Plan Average response time
Cloud Server XL 52.6ms
VPS L 52.9ms
Cloud Server L 54.6ms
VPS M 55.4ms
Cloud Server RAM L 57.9ms
Cloud Server S 58.0ms
Slice 1024 62.7ms
Slice 2048 206.8ms

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 Performance

We ran the full suite of Sysbench tests on VPS plans of IONOS by 1&1 and BuyVM. These are the Sysbench CPU test results:

Rate of operations

Higher is better

Plan Operations per second
Cloud Server S 338.1
VPS L 691.8
Cloud Server M 702.8
Cloud Server RAM L 702.9
Cloud Server L 707.5
VPS M 709.3
Cloud Server XL 1414.4
Slice 1024 377.9
Slice 2048 650.0

Sysbench Disk IO Performance

We ran the full suite of Sysbench tests on VPS plans of IONOS by 1&1 and BuyVM. These are the Sysbench Disk IO Random Read test results:

Rate of operations

Higher is better

Plan MiB per second
VPS M 66.9
Cloud Server S 67.9
Cloud Server L 78.3
VPS L 83.1
Cloud Server M 86.0
Cloud Server XL 86.3
Cloud Server RAM L 136.1
Slice 1024 92.4
Slice 2048 155.2

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 IONOS by 1&1 and BuyVM.

Network Transfers

We have performed large file transfers from the IONOS by 1&1 and BuyVM 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

Plan Network Download Speed
Cloud Server S 353.7Mbps
Cloud Server L 355.3Mbps
VPS L 360.0Mbps
VPS M 373.3Mbps
Cloud Server XL 383.3Mbps
Cloud Server RAM L 384.1Mbps
Cloud Server M 397.5Mbps
Slice 1024 586.0Mbps
Slice 2048 672.7Mbps

Network Transfers measurements including download and upload speeds can be compared for IONOS by 1&1 and BuyVM 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

Plan Average ops/hour
Cloud Server S 3247.7
VPS M 6170.1
Cloud Server RAM L 6442.0
Cloud Server L 6502.3
VPS L 6508.9
Cloud Server M 6548.3
Cloud Server XL 12376.5
Slice 1024 1789.3
Slice 2048 3113.9

Review and compare endurance test results for IONOS by 1&1 and BuyVM on the Sustained CPU Endurance Comparison page.

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

Plan Average remote request duration
VPS L 316.2ms
Cloud Server RAM L 316.4ms
Cloud Server XL 322.2ms
Cloud Server S 497.0ms
Cloud Server M 507.0ms
Slice 1024 360.8ms

Detailed remote timings measurements including connection time, TLS handshake time, and response time can be compared for IONOS by 1&1 and BuyVM on the Remote Timings 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.

IONOS by 1&1 Review BuyVM Review
Hourly Billing  Mixed No
DDOS Protection  No No
Backups  No No
Control Panel  Custom Stallion
SSH Keys Setup  Yes No
Total Number of Datacenters  4 3
Number of Datacenter Continents  2 2
Compare more IONOS by 1&1 and BuyVM Features


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