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cpx51 by Hetzner Cloud

cpx51 is a CPX 51 server offered by Hetzner Cloud with 16 vCPUs, 31 GiB of memory and 360 GB of storage. The pricing starts at 0.1296 USD per hour.
16 vCPU
31 GiB Memory
360 GB Storage
Spare SCore
12463
(All-cores)
772
(Single-core)

Specifications

Server Metadata

Vendor ID
hcloud
Server ID
26
Name
cpx51
Description
CPX 51
Family
cpx
Hw Virt
Status
active
Observed At
2026-07-23T22:40:43.897825

Availability

REGION / IDSPOTONDEMAND
Nuremberg (DE) / nbg1-dc3
- 0.1296 USD/h
Helsinki (FI) / hel1-dc2
- 0.1296 USD/h
Falkenstein (DE) / fsn1-dc14
- 0.1296 USD/h
Singapore (SG) / sin-dc1
- 0.1825 USD/h
Ashburn, VA (US) / ash-dc1
- 0.4345 USD/h
Hillsboro, OR (US) / hil-dc1
- 0.4345 USD/h

Processor

vCPUs
16
Hypervisor
QEMU
CPU Allocation
Shared
CPU Cores
16
CPU Speed
2 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU L1D Cache
32 KiB
CPU L1D Cache Total
512 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
8 MiB
CPU L3 Cache
16 MiB
CPU L3 Cache Total
16 MiB
CPU Flags
fpu, vme, de, pse, tsc, msr, pae, mce, cx8, apic, sep, mtrr, pge, mca, cmov, pat, pse36, clflush, mmx, fxsr, sse, sse2, ht, syscall, nx, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, rep_good, nopl, cpuid, extd_apicid, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, topoext, perfctr_core, ssbd, ibrs, ibpb, stibp, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, wbnoinvd, arat, umip, rdpid, arch_capabilities
Ecpus
16.2
Scalability
101.25

System Resources and Accelerators

MEMORY
Memory Amount
31 GiB
Memory Amount Actual
31 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    360 GB
    Storage Type
    nvme ssd
    Storages
      NETWORK
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      20480 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A budget-friendly virtual server combining sixteen shared cores with NVMe storage for balanced multi-threaded workloads and web serving.

      Burstable & BudgetCompute Optimized

      Hetzner Cloud cpx51 is an x86_64 virtual server configured with 16 shared AMD EPYC vCPUs running at 2.0 GHz, 31.0 GB of RAM, and a bundled 360 GB NVMe SSD. Operating under the QEMU hypervisor, this instance delivers a balanced resource profile for multi-threaded applications despite its shared CPU allocation. Benchmark data reveals a significant performance tradeoff: single-core CPU execution is limited, scoring in the bottom 10% on stress-ng, whereas multi-core performance and memory bandwidth consistently reach average tiers. The server achieves a static web serving throughput of 18.81 GB/sec and processes 30.41 million Redis SET operations per second. This profile makes the cpx51 a cost-effective option for parallelized workloads, multi-threaded software compilation, static web serving, and database operations that do not require dedicated CPU cores.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.03Score
      Precomputed compound score for Cache Intensive workloads. A weighted average (geometric mean) of benchmark scores compared to their medians: score = ∏ (x_i / m_i)^(w_i / Σw). The score of 1.0 represents a synthetic baseline server with the median performance of each component benchmark; 0.5 means roughly half the performance; and 2.0 means twice the performance of that reference profile. Component weights: 50% Redis RPS (pipeline=1, SET), 20% Redis RPS (pipeline=16, SET), 10% PassMark Memory Mark (composite), 10% Memory bandwidth (read, 16 MB ~ L3), 10% PassMark single-thread CPU. Rationale for component selection: In-memory key-value store workload, mixing direct Redis performance metrics with memory speed and latency benchmarks, and single-core CPU performance profiles.
      Component Score Weight Impact
      Raw Reference Normalized Target Actual
      Redis RPS (pipeline=1, SET) 1,733,470 ops/sec 1,896,415 ops/sec 0.914 50.00% 50.00% -4.40%
      Redis RPS (pipeline=16, SET) 15,216,916 ops/sec 11,539,523 ops/sec 1.32 20.00% 20.00% +5.71%
      PassMark Memory Mark (composite) 2,435 2,411 1.01 10.00% 10.00% +0.10%
      Memory bandwidth (read, 16 MB ~ L3) 130,303 MB/sec 107,368 MB/sec 1.21 10.00% 10.00% +1.92%
      PassMark single-thread CPU 2,320 Mops/s 2,363 Mops/s 0.982 10.00% 10.00% -0.18%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,220

      Geekbench Multi-Core

      Score: 8,903

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 29690
      Compression
      		 343645
      Encryption
      		 17266
      Extended Instructions
      		 29549
      Floating Point Maths
      		 65463
      Integer Maths
      		 82439
      Physics
      		 4110
      Prime Numbers
      		 247
      Single Threaded
      		 2320
      String Sorting
      		 47693

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2435
      Database Operations
      		 12862
      Memory Latency
      		 72
      Memory Read Cached
      		 22462
      Memory Read Uncached
      		 14254
      Memory Write
      		 15474

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      LLM Inference Speed for Prompt Processing

      LLM Inference Speed for Text Generation

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      cpx12 12 GiB0
      cpx11 22 GiB0
      cpx22 24 GiB0
      cpx21 34 GiB0
      cpx32 48 GiB0
      cpx31 48 GiB0
      cpx42 816 GiB0

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      cpx51 FAQs