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cpx21 by Hetzner Cloud

cpx21 is a CPX 21 server offered by Hetzner Cloud with 3 vCPUs, 4 GiB of memory and 80 GB of storage. The pricing starts at 0.0175 USD per hour.
3 vCPU
4 GiB Memory
80 GB Storage
Spare SCore
7981
(All-cores)
2667
(Single-core)

Specifications

Server Metadata

Vendor ID
hcloud
Server ID
23
Name
cpx21
Description
CPX 21
Family
cpx
Hw Virt
Status
active
Observed At
2026-08-07T17:41:39.146671

Availability

REGION / IDSPOTONDEMAND
Nuremberg (DE) / nbg1-dc3
- 0.0175 USD/h
Helsinki (FI) / hel1-dc2
- 0.0175 USD/h
Falkenstein (DE) / fsn1-dc14
- 0.0175 USD/h
Singapore (SG) / sin-dc1
- 0.0341 USD/h
Ashburn, VA (US) / ash-dc1
- 0.0592 USD/h
Hillsboro, OR (US) / hil-dc1
- 0.0592 USD/h

Processor

vCPUs
3
Hypervisor
QEMU
CPU Allocation
Shared
CPU Cores
3
CPU Speed
2 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU L1D Cache
32 KiB
CPU L1D Cache Total
96 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
96 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
3
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
4 GiB
Memory Amount Actual
4 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    80 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 featuring shared AMD EPYC processors and local NVMe storage for lightweight, single-threaded workloads.

      Burstable & BudgetGeneral Purpose

      Hetzner Cloud cpx21 is an x86_64 virtual server configured with 3 shared AMD EPYC vCPUs running at 2.0 GHz, 4.0 GB of RAM, and 80 GB of local NVMe SSD storage. It features no GPU resources and zero complimentary public IPv4 addresses. Performance benchmarks indicate strong single-core CPU capabilities, but multi-core performance and memory bandwidth are relatively weak, with memory read-only large block speeds at 37.21 GB/sec and a poor PassMark memory score. This resource profile presents a cost-efficient option for budget-conscious deployments where high memory capacity is not required. The cpx21 is best suited for lightweight workloads such as basic web serving, text processing, and development environments that benefit from strong single-threaded performance but do not demand sustained multi-core execution or high memory throughput.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.255Score
      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) 312,887 ops/sec 1,910,660 ops/sec 0.164 50.00% 50.00% -59.50%
      Redis RPS (pipeline=16, SET) 2,643,743 ops/sec 11,608,287 ops/sec 0.228 20.00% 20.00% -25.60%
      PassMark Memory Mark (composite) 1,148 2,416 0.475 10.00% 10.00% -7.17%
      Memory bandwidth (read, 16 MB ~ L3) 43,615 MB/sec 107,896 MB/sec 0.404 10.00% 10.00% -8.66%
      PassMark single-thread CPU 2,341 Mops/s 2,364 Mops/s 0.99 10.00% 10.00% -0.10%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,457

      Geekbench Multi-Core

      Score: 3,723

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 6521
      Compression
      		 64262
      Encryption
      		 3332
      Extended Instructions
      		 5340
      Floating Point Maths
      		 12276
      Integer Maths
      		 15440
      Physics
      		 832
      Prime Numbers
      		 47
      Single Threaded
      		 2341
      String Sorting
      		 9032

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1148
      Database Operations
      		 2502
      Memory Latency
      		 69
      Memory Read Cached
      		 23055
      Memory Read Uncached
      		 14938
      Memory Write
      		 15531

      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
      cpx32 48 GiB0
      cpx31 48 GiB0
      cpx42 816 GiB0
      cpx41 816 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      cpx21 FAQs