Netcup G12 Architecture Analysis: AMD EPYC 9005 & 9004, DDR5 ECC & NVMe RAID 10 Tests

Netcup Generation 12 server hardware features distinct CPU configurations across product lines:

• Root Server (RS G12): The entire RS G12 lineup (RS 1000 through RS 8000) is powered by the latest AMD EPYC™ 9645 processors with clock speeds up to 3.7 GHz, from the flagship AMD EPYC 9005 series (Turin, Zen 5c architecture, 3nm process). Each vCPU corresponds to a 100% dedicated physical core via KVM core pinning with 0% CPU steal, offering top-tier IPC and native AVX-512 support.
• Cloud VPS (VPS G12): While Netcup does not officially specify a single fixed CPU model for VPS G12, actual delivery benchmarks and community telemetry indicate the latest host nodes run on AMD EPYC 9004 series enterprise processors (Zen 4 architecture), strongly suspected to be AMD EPYC 9634 CPUs (the previous generation RS G11 flagship CPU). Even in a shared-core model, this delivers immense single-core and multi-core throughput.

A key hardware update in G12 is standard DDR5 registered ECC memory running at 4800 MT/s across multi-channel configurations. Compared to DDR4 (usually around 3200 MT/s), DDR5 increases raw memory throughput substantially while maintaining lower operating voltages. ECC error correction guards against single-bit memory corruption, making these nodes suitable for production databases and in-memory caches like Redis.

G12 servers utilize enterprise PCIe 4.0 NVMe SSDs configured in hardware RAID 10 arrays. In standard fio 4K random read/write tests, G12 instances sustain consistent high IOPS with write latencies remaining low. Sequential read speeds routinely reach 2,500+ MB/s. The RAID 10 redundancy ensures that individual drive replacements can be handled transparently by datacenter staff without interrupting guest VM operations.

Netcup Root Server Generation 12 (RS G12) is built on cutting-edge enterprise hardware designed for demanding production workloads:

• AMD EPYC™ 9645 Dedicated Cores: Clock speeds up to 3.7 GHz with 1:1 KVM physical core pinning. Sustained stress testing confirms 0.0% CPU steal with zero neighbor interference.
• DDR5 ECC RAM: High-speed DDR5 registered ECC memory ensures maximum data integrity, bitflip protection, and top-tier memory bandwidth.
• Lightning-Fast NVMe Storage: Enterprise PCIe 4.0 NVMe SSDs in hardware RAID 10 deliver exceptional IOPS and low write latency.
• 2.5 Gbit/s Network Card: Every RS G12 instance comes equipped with a 2.5 Gbit/s high-speed uplink for ultra-fast, rock-solid connectivity and large-scale data transfers.

When planning deployments and infrastructure budgets, Netcup provides distinctly tailored contract terms for both RS and VPS product lines:

• Netcup VPS Contract Terms (0-Month Hourly vs 12-Month Annual): Netcup Cloud VPS offers a 0-month minimum contract term (Mindestvertragslaufzeit: 0 Monate) with hourly billing (*stundengenau*). When ordering, you pay for 1 month upfront plus a setup fee (e.g., €4.20). When you terminate the contract in the CCP panel, Netcup automatically refunds the unused portion of the month calculated down to the hour. For sustained production workloads, selecting a 12-month contract (12 Monate) waives the setup fee (€0 setup), provides lower recurring monthly pricing, and allows redeeming valuable new-customer vouchers (like 1 month free on VPS G12).
• Root Server Contract Terms (1-Month vs 12-Month): Dedicated Root Servers (RS G12) are available with either a 1-month flexible contract or a 12-month commitment with promotional vouchers (1 to 2 free months). RS does not offer 0-month hourly terms due to physical hardware core reservation.
• Invoicing Periods (Abrechnungsperiode): Invoicing occurs on a 1-month or 12-month cycle.
• Cancellation Rules: For fixed-term contracts (1-month or 12-month), contracts renew under German Civil Code (BGB) unless cancelled in the CCP at least 31 days prior to the renewal date. For 0-month hourly VPS, instances can be terminated directly in CCP with unused funds refunded.