You can use Dedicated Servers to run your own virtual machines, while nested virtualization is not possible on VPS.
Because of the components‘ capability to interact with each other directly, a Dedicated Server is superior to VPS when it comes to the usage of real-time sensitive applications which need quick CPU and RAM response times. There is no virtualization and thus all hardware components respond immediately and can interact with each other without the loss of milliseconds. All the hardware components are dedicated to you and not shared with anyone. With a Dedicated Server you get a physical machine with all hardware components dedicated only to your applications. This has no visible impact on most applications, but, for example, game servers, VoIP servers, or low-latency trading applications can have suboptimal performance on VPS. In Space Hosting we work hard to minimize this „noisy neighbors“ effect, but it‘s never fully possible.
The access to CPU cores and RAM is guaranteed, but sharing the hardware components between the multiple VPS still introduces a latency of only milliseconds in some situations and means that there could be some impact of one VPS over another. VPS are maintained in a shared, virtualized environment, which means multiple VPS run on one host server system and share CPU cores and RAM, for example. The difference is in the usage of hardware resources.
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In terms of software usage, you will not recognize a difference you have full root access to both VPS and Dedicated Servers. In order to give you an idea on what a Virtual Dedicated Server (VDS) is, let‘s start with a rough explanation on VPS and Dedicated Servers.
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