Netcup Root Server (RS G12) vs Cloud VPS: Which Should You Choose? (2026)
In-depth architectural comparison: Netcup Root Server (100% dedicated AMD EPYC 9645 Zen 5 cores) vs Netcup Cloud VPS (shared vCores). Compare CPU steal, NVMe IOPS, nested virtualization, hourly billing, and use cases.
One of the most frequent dilemmas when evaluating Netcup is deciding between a Root Server (RS G12) and a Cloud VPS (G12). While both run on enterprise AMD EPYC hardware in ISO 27001 German datacenters with 2.5 Gbps unmetered network ports, their underlying virtualization architecture and resource guarantees are fundamentally different.
Understanding the distinction ensures you don't overspend on unused dedicated compute, nor face performance bottlenecks on intensive database workloads. Here is the authoritative 2026 comparison to help you choose the ideal server.
1. Head-to-Head Architectural Breakdown
| Feature / Metric | Root Server (RS G12) | Cloud VPS (G12) | Key Difference |
|---|---|---|---|
| CPU Allocation | 100% Dedicated Physical Cores (AMD EPYC™ 9645 Zen 5) | Shared x86 vCores on AMD EPYC host nodes | RS has 0.0% CPU Steal guarantee; VPS shares cycles |
| RAM Architecture | Dedicated DDR5 ECC RAM (Zero ballooning / overcommit) | DDR5 ECC RAM (Managed host pool) | Both use DDR5 ECC; RS locks RAM exclusively |
| Storage Throughput | Direct Hardware RAID NVMe (~320,000 IOPS) | Enterprise RAID-10 NVMe (~100,000 IOPS) | RS is 3x faster for concurrent database write ops |
| Nested Virtualization | ✅ Supported (Run Proxmox, KVM, Docker inside) | ❌ Standard KVM (Containers supported, no nested VMs) | RS can act as a personal Proxmox hypervisor |
| Billing Flexibility | Monthly or 12-month terms (1–2 Months Free with Voucher) | Hourly billing (€0.014/h) or Monthly billing | VPS can be spun up and deleted hourly |
| Entry Price (0% VAT) | From €10.74/mo (Effective €8.95/mo with voucher) | From €8.70/mo (€0.014/h) | Only €2/mo difference for dedicated Zen 5 cores! |
2. Which Model Best Fits Your Workload?
🏆 Choose Root Server (RS G12) If You Need:
- High-Concurrency Databases: PostgreSQL, MySQL, ClickHouse, Redis where CPU steal causes transaction latency spikes.
- Sustained High CPU Loads: Video encoding (FFmpeg), continuous CI/CD builds, Java/Node.js microservices with >40% average CPU usage.
- Self-Hosted Hypervisors: Running Proxmox VE or nested KVM instances for team labs.
- Production Websites & SaaS: Mission-critical apps requiring 99.9% hardware availability SLAs.
☁️ Choose Cloud VPS (G12) If You Need:
- Flexible / Hourly Workloads: Spinning up temporary testing sandboxes or staging environments.
- Personal Web Services: Nextcloud, Vaultwarden, personal VPN (WireGuard), Pi-hole, self-hosted RSS readers.
- Low-to-Medium Traffic Sites: WordPress blogs, static web hosting, lightweight development APIs.
- Cost Minimization: Maximizing RAM/SSD per Euro for non-CPU-bound services.
3. Claim Verified Vouchers for RS G12 & Cloud VPS G12
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