cpx31 by Hetzner Cloud

cpx31 is a CPX 31 server offered by Hetzner Cloud with 4 vCPUs, 8 GiB of memory and 160 GB of storage. The pricing starts at 0.1125 USD per hour.
4 vCPU
8 GiB Memory
160 GB Storage
Spare SCore
10,668
(All-cores)
2,682
(Single-core)

Specifications

Server Metadata

Vendor ID
hcloud
Server ID
24
Name
cpx31
Description
CPX 31
Family
Regular Purpose
Hw Virt
Average Time To Start
16.5
Status
active
Observed At
2026-10-21T18:45:33.827843

Availability

REGION / IDSPOTONDEMAND
Ashburn (US) / ash
- 0.1125 USD/h
Hillsboro (US) / hil
- 0.1125 USD/h

Processor

vCPUs
4
Hypervisor
QEMU
CPU Allocation
Shared
CPU Cores
4
CPU Speed
2 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU L1D Cache
32 KiB
CPU L1D Cache Total
128 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
2 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
4
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
8 GiB
Memory Amount Actual
8 GiB
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    160 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

      An efficient shared-core virtual server combining strong single-thread performance with local NVMe SSD storage for lightweight compute workloads.

      Compute OptimizedBurstable & Budget

      Hetzner Cloud cpx31 is an x86_64 virtual server utilizing the QEMU hypervisor and powered by 4 shared AMD EPYC vCPUs running at 2.0 GHz. The system is equipped with 8.0 GB of RAM, yielding 1.95 GB per core, and includes 160 GB of local NVMe SSD storage. It does not feature a GPU or complimentary public IPv4 addresses. Performance benchmarks indicate strong single-core CPU capabilities, ranking in the top 25%, while multi-core execution and memory bandwidth remain average. However, the server exhibits weaker performance in memory-intensive benchmarks, Redis SET operations, and static web serving throughput. Given its shared CPU architecture and moderate memory allocation, the cpx31 represents a cost-efficient option for workloads that require solid single-thread performance and fast local storage without the need for dedicated CPU resources. It is well-suited for development environments, lightweight application hosting, and basic database tasks.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.27Score
      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) 325,097 ops/sec 1,918,343 ops/sec 0.17 50.00% 50.00% -59.00%
      Redis RPS (pipeline=16, SET) 2,900,771 ops/sec 11,704,734 ops/sec 0.24 20.00% 20.00% -25.00%
      PassMark Memory Mark (composite) 1,281 2,416 0.54 10.00% 10.00% -6.00%
      Memory bandwidth (read, 16 MB ~ L3) 63,188 MB/sec 108,420 MB/sec 0.57 10.00% 10.00% -5.50%
      PassMark single-thread CPU 2,118 Mops/s 2,365 Mops/s 0.88 10.00% 10.00% -1.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,339

      Geekbench Multi-Core

      Score: 4,183

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 8,392
      Compression
      		 82,978
      Encryption
      		 4,374
      Extended Instructions
      		 7,396
      Floating Point Maths
      		 16,469
      Integer Maths
      		 20,481
      Physics
      		 985
      Prime Numbers
      		 62
      Single Threaded
      		 2,118
      String Sorting
      		 11,247

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,281
      Database Operations
      		 2,992
      Memory Latency
      		 77
      Memory Read Cached
      		 23,738
      Memory Read Uncached
      		 12,411
      Memory Write
      		 14,518

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 372.31 378.16 1.02×
      bitops
      		 126,198 518,874 4.11×
      branch
      		 156,325 629,756 4.03×
      funccall
      		 502.69 1,984 3.95×
      funcret
      		 15,992 61,726 3.86×
      hash
      		 129,213 503,617 3.90×
      intmath
      		 54,805 220,732 4.03×
      nop
      		 271,583 1,062,962 3.91×
      prime
      		 363,905 1,461,269 4.02×
      rotate
      		 72,302 290,743 4.02×
      str
      		 816,476 3,045,680 3.73×
      wcs
      		 524,377 2,060,262 3.93×
      CryptographySingleMultiScaling
      crypt
      		 2,918 11,387 3.90×
      CompressionSingleMultiScaling
      jpeg
      		 718.42 2,867 3.99×
      zlib
      		 56.34 161.16 2.86×
      HypervisorSingleMultiScaling
      clock
      		 20,377 72,661 3.57×
      clone
      		 446.4 784.87 1.76×
      context
      		 4,914 18,859 3.84×
      cpu-sched
      		 68.95 254.07 3.68×
      eventfd
      		 23,608 424,415 17.98×
      fault
      		 10,077 35,251 3.50×
      fork
      		 4,827 20,058 4.16×
      getrandom
      		 48,999 198,055 4.04×
      hrtimers
      		 176,105 391,655 2.22×
      mprotect
      		 868,293 1,445,745 1.67×
      mtx
      		 25,498,249 420,293,482 16.48×
      munmap
      		 2,638 13,596 5.15×
      null
      		 833,082 3,278,868 3.94×
      pipe
      		 1,192,627 2,999,949 2.52×
      priv-instr
      		 703,707 2,402,196 3.41×
      resched
      		 1,944,728 967,245 0.50×
      switch
      		 41,423 970,073 23.42×
      timermix
      		 165,595 684,653 4.13×
      tlb-shootdown
      		 14,047 23,433 1.67×
      tsc
      		 647,969 2,585,364 3.99×
      usersyscall
      		 539,207 2,004,822 3.72×
      vdso
      		 67,183,729 268,361,524 3.99×
      vfork
      		 16,341 111,274 6.81×
      x86syscall
      		 9,808,074 38,343,895 3.91×
      yield
      		 3,465,363 3,686,616 1.06×
      zero
      		 4,355,220 17,092,973 3.92×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 13,077 51,438 3.93×
      expmath
      		 2,354 9,215 3.92×
      fma
      		 759,226 2,990,646 3.94×
      fp
      		 220.8 855.65 3.88×
      fractal
      		 6.6 25.8 3.91×
      hyperbolic
      		 3,114 12,225 3.93×
      logmath
      		 3,683 14,214 3.86×
      matrix
      		 2,595 10,351 3.99×
      matrix-3d
      		 702.52 2,068 2.94×
      monte-carlo
      		 279.55 1,056 3.78×
      mpfr
      		 1,341 5,144 3.84×
      powmath
      		 1,130 4,522 4.00×
      trig
      		 1,432 5,659 3.95×
      veccmp
      		 15,595 61,211 3.92×
      vecfp
      		 1,444 5,648 3.91×
      vecmath
      		 3,334 13,173 3.95×
      vecshuf
      		 504.06 2,027 4.02×
      vecwide
      		 22,858 90,227 3.95×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 8.2 31.2 3.80×
      bsearch
      		 251.74 1,005 3.99×
      bubblesort
      		 0.8 3.2 4.00×
      fibsearch
      		 287.44 1,170 4.07×
      heapsort
      		 8.6 33.8 3.93×
      hsearch
      		 6,700 26,262 3.92×
      insertionsort
      		 10.2 39.6 3.88×
      malloc
      		 2,235,035 9,442,623 4.22×
      mcontend
      		 116.64 582.25 4.99×
      mergesort
      		 27.2 105.8 3.89×
      qsort
      		 17.8 69 3.88×
      skiplist
      		 6,008 23,297 3.88×
      tree
      		 1.2 4 3.33×
      MemorySingleMultiScaling
      cache
      		 496,725 942,042 1.90×
      cachehammer
      		 246,075 937,778 3.81×
      cacheline
      		 29.89 145.3 4.86×
      l1cache
      		 146.57 603.63 4.12×
      memcpy
      		 315.57 1,236 3.92×
      memrate
      		 2.17 6.1 2.81×
      memthrash
      		 71.56 198.26 2.77×
      ptr-chase
      		 12,598,953 39,581,118 3.14×
      spinmem
      		 180.79 2.4 0.01×
      stream
      		 172.05 1,905 11.07×
      vm
      		 108,781 291,493 2.68×

      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
      cpx42 816 GiB0

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      cpx31 FAQs