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 0.1126 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
cpx
Hw Virt
Average Time To Start
16.5
Status
active
Observed At
2026-09-01T15:10:15.321099

Availability

REGION / IDSPOTONDEMAND
Ashburn, VA (US) / ash-dc1
- 0.1126 USD/h
Hillsboro, OR (US) / hil-dc1
- 0.1126 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

      A budget-friendly virtual server combining strong single-core AMD EPYC performance with fast local NVMe SSD storage for lightweight workloads.

      Compute OptimizedBurstable & Budget

      Hetzner Cloud cpx31 is an x86_64 virtual server featuring 4 shared AMD EPYC vCPUs running at 2.0 GHz, 8.0 GB of RAM, and 160 GB of local NVMe SSD storage. Operating under the QEMU hypervisor, the instance delivers strong single-core CPU performance, ranking in the top 25% in stress-ng benchmarks, while multi-core performance and memory bandwidth remain average. The shared CPU allocation introduces performance trade-offs for highly parallelized tasks, resulting in weaker multi-threaded decompression and software compilation scores. With a 1:2 vCPU-to-RAM ratio, this server offers a cost-efficient hardware profile for workloads that benefit from fast local storage and solid single-threaded execution, such as lightweight web serving, text processing, and small-scale database operations.

      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 1,917,050 ops/sec 0.17 50.00% 50.00% -59.00%
      Redis RPS (pipeline=16, SET) 2,900,771 ops/sec 11,661,818 ops/sec 0.24 20.00% 20.00% -25.00%
      PassMark Memory Mark (composite) 1,281 2,417 0.54 10.00% 10.00% -6.00%
      Memory bandwidth (read, 16 MB ~ L3) 63,188 MB/sec 108,361 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

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 8392
      Compression
      		 82978
      Encryption
      		 4374
      Extended Instructions
      		 7396
      Floating Point Maths
      		 16469
      Integer Maths
      		 20481
      Physics
      		 985
      Prime Numbers
      		 62
      Single Threaded
      		 2118
      String Sorting
      		 11247

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1281
      Database Operations
      		 2992
      Memory Latency
      		 77
      Memory Read Cached
      		 23738
      Memory Read Uncached
      		 12411
      Memory Write
      		 14518

      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
      cpx12 12 GiB0
      cpx11 22 GiB0
      cpx22 24 GiB0
      cpx21 34 GiB0
      cpx32 48 GiB0
      cpx42 816 GiB0
      cpx41 816 GiB0

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      cpx31 FAQs