Traditional VPS Architecture
Traditional VPS runs on a single physical server with hardware virtualization. Your virtual server is allocated specific resources from that physical machine. If the physical server fails, your VPS goes down with it. This model is simpler and often more affordable.
Cloud Hosting Architecture
Cloud hosting distributes resources across multiple physical servers. Your instance can migrate between hardware seamlessly, providing better redundancy. Resources can scale dynamically based on demand. This architecture offers higher availability but can be more complex to price.
Pricing Models
Traditional VPS typically uses fixed monthly pricing, making costs predictable. Cloud hosting often uses pay-as-you-go pricing, which can vary based on actual usage. For steady workloads, VPS is usually cheaper; for variable workloads, cloud pricing might be more efficient.
Scalability Differences
Cloud hosting excels at instant scalability—add resources in seconds, even automatically. Traditional VPS scaling requires plan upgrades, which may involve brief downtime. If your traffic fluctuates significantly, cloud scalability is valuable; for steady workloads, fixed VPS plans work well.
Modern Reality: Cloud VPS
Most modern "VPS" providers (DigitalOcean, Vultr, Linode, Hetzner) actually run on cloud infrastructure. They offer the simplicity of VPS pricing with many cloud benefits like instant provisioning, snapshots, and flexible scaling. The distinction has become largely academic for practical purposes.