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 0.4285 USD per hour.
16 vCPU
31 GiB Memory
360 GB Storage
Spare SCore
12,463
(All-cores)
772
(Single-core)

Specifications

Server Metadata

Vendor ID
hcloud
Server ID
26
Name
cpx51
Description
CPX 51
Family
Regular Purpose
Hw Virt
Average Time To Start
18.33
Status
active
Observed At
2026-10-22T11:03:26.220698

Availability

REGION / IDSPOTONDEMAND
Ashburn (US) / ash
- 0.4285 USD/h
Hillsboro (US) / hil
- 0.4285 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
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    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 cost-efficient shared-CPU virtual server featuring sixteen AMD EPYC cores and local NVMe SSD storage for multi-threaded workloads.

      Compute OptimizedBurstable & BudgetStorage & Database

      Hetzner Cloud cpx51 is an x86_64 virtual server featuring 16 shared AMD EPYC vCPUs operating at 2.0 GHz, paired with 31.0 GB of RAM and 360 GB of local NVMe SSD storage. The hardware profile lacks dedicated GPU resources and complimentary public IPv4 addresses. Performance benchmarks place the cpx51 in the average tier for multi-core processing, memory bandwidth, and database operations, though single-core CPU performance is positioned in the bottom 10%. This resource density offers a cost-effective option for multi-threaded applications. The server is suited for workloads such as static web serving, software compilation, and moderate database operations that benefit from multi-core execution without requiring dedicated CPU allocation.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.99Score
      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 1,918,343 ops/sec 0.89 50.00% 50.00% -5.70%
      Redis RPS (pipeline=16, SET) 15,216,916 ops/sec 11,704,734 ops/sec 1.2 20.00% 20.00% +3.70%
      PassMark Memory Mark (composite) 2,435 2,416 1 10.00% 10.00% 0.00%
      Memory bandwidth (read, 16 MB ~ L3) 130,303 MB/sec 108,420 MB/sec 1.2 10.00% 10.00% +1.80%
      PassMark single-thread CPU 2,320 Mops/s 2,365 Mops/s 0.96 10.00% 10.00% -0.41%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,448

      Geekbench Multi-Core

      Score: 10,970

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 29,690
      Compression
      		 343,645
      Encryption
      		 17,266
      Extended Instructions
      		 29,549
      Floating Point Maths
      		 65,463
      Integer Maths
      		 82,439
      Physics
      		 4,110
      Prime Numbers
      		 247
      Single Threaded
      		 2,320
      String Sorting
      		 47,693

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,435
      Database Operations
      		 12,862
      Memory Latency
      		 72
      Memory Read Cached
      		 22,462
      Memory Read Uncached
      		 14,254
      Memory Write
      		 15,474

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 307.51 263.3 0.86×
      bitops
      		 123,981 1,797,074 14.49×
      branch
      		 154,168 2,399,214 15.56×
      funccall
      		 487.1 7,428 15.25×
      funcret
      		 15,529 239,996 15.45×
      hash
      		 125,191 1,944,163 15.53×
      intmath
      		 55,265 828,632 14.99×
      nop
      		 253,423 3,916,660 15.46×
      prime
      		 354,010 5,050,689 14.27×
      rotate
      		 70,961 1,029,341 14.51×
      str
      		 726,863 11,109,782 15.28×
      wcs
      		 509,204 7,520,874 14.77×
      CryptographySingleMultiScaling
      crypt
      		 2,742 41,388 15.09×
      CompressionSingleMultiScaling
      jpeg
      		 701.36 10,335 14.74×
      zlib
      		 48.22 810.27 16.80×
      HypervisorSingleMultiScaling
      clock
      		 19,360 161,554 8.34×
      clone
      		 259.1 4,305 16.61×
      context
      		 4,831 74,387 15.40×
      cpu-sched
      		 55.87 1,061 18.99×
      eventfd
      		 21,989 307,466 13.98×
      fault
      		 9,312 99,465 10.68×
      fork
      		 3,015 38,710 12.84×
      getrandom
      		 46,971 745,204 15.87×
      hrtimers
      		 123,777 1,342,889 10.85×
      mprotect
      		 576,145 4,510,366 7.83×
      mtx
      		 23,767,253 1,482,898,431 62.39×
      munmap
      		 1,911 36,360 19.03×
      null
      		 813,302 11,772,973 14.48×
      pipe
      		 1,359,592 8,162,118 6.00×
      priv-instr
      		 643,573 7,572,417 11.77×
      resched
      		 9,045,689 3,741,291 0.41×
      switch
      		 35,586 3,013,894 84.69×
      timermix
      		 166,394 2,468,771 14.84×
      tlb-shootdown
      		 15,085 66,889 4.43×
      tsc
      		 648,827 10,246,442 15.79×
      usersyscall
      		 527,548 6,257,662 11.86×
      vdso
      		 65,056,948 1,010,542,718 15.53×
      vfork
      		 13,065 133,875 10.25×
      x86syscall
      		 8,998,380 133,261,892 14.81×
      yield
      		 12,936,607 15,558,157 1.20×
      zero
      		 4,174,104 57,619,120 13.80×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 12,412 181,417 14.62×
      expmath
      		 2,033 30,568 15.04×
      fma
      		 736,396 11,414,618 15.50×
      fp
      		 212.5 3,304 15.55×
      fractal
      		 6.6 101.61 15.40×
      hyperbolic
      		 3,035 47,186 15.55×
      logmath
      		 3,543 53,800 15.19×
      matrix
      		 2,558 39,765 15.55×
      matrix-3d
      		 334.88 4,771 14.25×
      monte-carlo
      		 269.13 3,940 14.64×
      mpfr
      		 1,283 17,406 13.57×
      powmath
      		 1,108 17,231 15.56×
      trig
      		 1,379 21,432 15.54×
      veccmp
      		 14,812 231,901 15.66×
      vecfp
      		 1,387 21,370 15.41×
      vecmath
      		 3,264 49,914 15.29×
      vecshuf
      		 490.09 7,530 15.37×
      vecwide
      		 22,158 339,013 15.30×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 7.4 110.2 14.89×
      bsearch
      		 245.11 3,607 14.71×
      bubblesort
      		 0.8 11.8 14.75×
      fibsearch
      		 274.14 3,912 14.27×
      heapsort
      		 8.6 118.4 13.77×
      hsearch
      		 6,432 99,529 15.47×
      insertionsort
      		 9.4 140.4 14.94×
      malloc
      		 1,992,663 24,122,061 12.11×
      mcontend
      		 101.43 2,471 24.36×
      mergesort
      		 27.2 408.79 15.03×
      qsort
      		 17.2 261.59 15.21×
      skiplist
      		 5,772 86,504 14.99×
      tree
      		 1.2 14.6 12.17×
      MemorySingleMultiScaling
      cache
      		 462,364 1,179,015 2.55×
      cachehammer
      		 238,292 3,356,114 14.08×
      cacheline
      		 26.98 515.79 19.12×
      l1cache
      		 161.65 2,250 13.92×
      memcpy
      		 266.97 4,543 17.02×
      memrate
      		 2.17 11.15 5.14×
      memthrash
      		 112.35 626.14 5.57×
      ptr-chase
      		 9,523,280 129,539,149 13.60×
      spinmem
      		 169.99 481.16 2.83×
      stream
      		 165.75 14,379 86.75×
      vm
      		 94,465 293,395 3.11×

      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

      PostgreSQL heavy read-only throughput

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYAccelerators
      cpx02 11.0 GiB0
      cpx12 12 GiB0
      cpx11 22 GiB0
      cpx22 24 GiB0
      cpx21 34 GiB0
      cpx32 48 GiB0
      cpx31 48 GiB0

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      cpx51 FAQs