cax31 by Hetzner Cloud
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | hcloud |
Server ID | 94 |
Name | cax31 |
Description | CAX31 |
Family | Cost Optimized |
Hw Virt | |
Average Time To Start | 27.6 |
Status | inactive |
Observed At | 2026-10-31T19:15:12.153123 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ashburn, VA (US) / ash-dc1 | - | 0.0215 USD/h |
Ashburn (US) / ash | - | 0.0215 USD/h |
Nuremberg (DE) / nbg1-dc3 | - | 0.0375 USD/h |
Helsinki (FI) / hel1-dc2 | - | 0.0375 USD/h |
Falkenstein (DE) / fsn1-dc14 | - | 0.0375 USD/h |
Falkenstein (DE) / fsn1 | - | 0.0375 USD/h |
Helsinki (FI) / hel1 | - | 0.0375 USD/h |
Nuremberg (DE) / nbg1 | - | 0.0375 USD/h |
Processor
vCPUs | 8 |
Hypervisor | QEMU |
CPU Allocation | Shared |
CPU Cores | 8 |
CPU Speed | 2 GHz |
CPU Architecture | arm64 |
CPU Manufacturer | Ampere |
CPU Family | Ampere Altra |
CPU Model | Neoverse-N1 |
CPU Flags | fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, lrcpc, dcpop, asimddp, ssbs |
Ecpus | 8 |
Scalability | 100 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 16 GiB |
Memory Amount Actual | 16 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 arm64 virtual server with eight shared cores and local NVMe storage, optimized for cost-efficient multi-threaded workloads.
Hetzner Cloud cax31 is an arm64 virtual server featuring 8 shared vCPUs powered by Ampere Altra Neoverse-N1 processors running at 2.0 GHz. It is equipped with 16.0 GB of RAM and 160 GB of local NVMe SSD storage, operating under a QEMU hypervisor. Benchmark data shows average multi-core capabilities, with a Geekbench multi-core score of 5619.0 and static web serving throughput of 7.92 GB/sec, though single-core performance remains weak. The shared CPU allocation presents a tradeoff in performance consistency for sustained workloads, but the server offers a cost-efficient profile for parallelized tasks. It is suited for multi-threaded applications, software compilation, static web serving, and lightweight database operations.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 6,029 |
Compression | 43,699 |
Encryption | 1,273 |
Extended Instructions | 5,864 |
Floating Point Maths | 28,139 |
Integer Maths | 37,147 |
Physics | 953 |
Prime Numbers | 54 |
Single Threaded | 1,298 |
String Sorting | 26,101 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 1,636 |
Database Operations | 5,284 |
Memory Latency | 79 |
Memory Read Cached | 11,024 |
Memory Read Uncached | 8,207 |
Memory Write | 14,509 |
Stress-ng Stressors
| CPU integer | Single | Multi | Scaling |
|---|---|---|---|
atomic | 79.34 | 87.49 | 1.10× |
bitops | 107,640 | 857,598 | 7.97× |
branch | 218,585 | 1,741,223 | 7.97× |
funccall | 1,328 | 10,559 | 7.95× |
funcret | 20,586 | 164,485 | 7.99× |
hash | 126,397 | 1,010,013 | 7.99× |
intmath | 31,573 | 246,777 | 7.82× |
nop | 171,841 | 1,364,355 | 7.94× |
prime | 334,148 | 2,649,233 | 7.93× |
rotate | 95,721 | 760,247 | 7.94× |
str | 509,941 | 4,059,743 | 7.96× |
wcs | 118,197 | 939,748 | 7.95× |
| Cryptography | Single | Multi | Scaling |
|---|---|---|---|
crypt | 2,884 | 22,850 | 7.92× |
| Compression | Single | Multi | Scaling |
|---|---|---|---|
jpeg | 500.46 | 3,855 | 7.70× |
zlib | 40.95 | 274.59 | 6.71× |
| Hypervisor | Single | Multi | Scaling |
|---|---|---|---|
clock | 25,073 | 190,641 | 7.60× |
clone | 291.37 | 1,454 | 4.99× |
context | 2,771 | 22,014 | 7.95× |
cpu-sched | 59.81 | 486.91 | 8.14× |
eventfd | 64,392 | 512,688 | 7.96× |
fault | 10,468 | 58,775 | 5.61× |
fork | 2,055 | 18,949 | 9.22× |
getrandom | 49,111 | 390,253 | 7.95× |
hrtimers | 132,135 | 2,097,300 | 15.87× |
mprotect | 795,735 | 2,215,490 | 2.78× |
mtx | 5,455,351 | 384,647,094 | 70.51× |
munmap | 1,130 | 12,610 | 11.16× |
null | 478,242 | 3,803,425 | 7.95× |
pipe | 591,445 | 4,114,921 | 6.96× |
priv-instr | 708,852 | 5,105,047 | 7.20× |
resched | 3,898,011 | 1,411,402 | 0.36× |
switch | 124,499 | 1,584,185 | 12.72× |
timermix | 322,971 | 2,571,684 | 7.96× |
tlb-shootdown | 4,146 | 4,257 | 1.03× |
vdso | 45,126,838 | 360,181,650 | 7.98× |
vfork | 17,025 | 92,491 | 5.43× |
yield | 6,070,226 | 6,408,858 | 1.06× |
zero | 2,475,579 | 19,678,396 | 7.95× |
| CPU float/SIMD | Single | Multi | Scaling |
|---|---|---|---|
eigen | 1,323 | 10,509 | 7.94× |
expmath | 236.13 | 1,894 | 8.02× |
fma | 635,231 | 5,057,015 | 7.96× |
fp | 102.54 | 812.65 | 7.93× |
fractal | 6.6 | 51 | 7.73× |
hyperbolic | 242.54 | 1,907 | 7.86× |
logmath | 290.72 | 2,286 | 7.86× |
matrix | 5,295 | 41,913 | 7.92× |
matrix-3d | 389.33 | 2,543 | 6.53× |
monte-carlo | 193.82 | 1,549 | 7.99× |
mpfr | 634.65 | 5,035 | 7.93× |
powmath | 175.13 | 1,392 | 7.95× |
trig | 325.74 | 2,596 | 7.97× |
veccmp | 16,968 | 135,887 | 8.01× |
vecfp | 739.01 | 5,856 | 7.92× |
vecmath | 3,066 | 24,356 | 7.94× |
vecshuf | 647.72 | 5,279 | 8.15× |
vecwide | 18,238 | 144,623 | 7.93× |
| Algorithms | Single | Multi | Scaling |
|---|---|---|---|
bitonicsort | 5.4 | 43 | 7.96× |
bsearch | 255.13 | 2,031 | 7.96× |
bubblesort | 0.8 | 6.4 | 8.00× |
fibsearch | 271.33 | 2,155 | 7.94× |
heapsort | 8.2 | 64.59 | 7.88× |
hsearch | 4,787 | 37,761 | 7.89× |
insertionsort | 4.6 | 35.2 | 7.65× |
malloc | 1,532,992 | 14,062,184 | 9.17× |
mcontend | 216.35 | 15,655 | 72.36× |
mergesort | 27.4 | 209.36 | 7.64× |
qsort | 19 | 148.39 | 7.81× |
skiplist | 5,315 | 41,911 | 7.88× |
tree | 0.8 | 6.4 | 8.00× |
| Memory | Single | Multi | Scaling |
|---|---|---|---|
cache | 244,049 | 598,677 | 2.45× |
cachehammer | 189,800 | 490,156 | 2.58× |
cacheline | 49.05 | 401.82 | 8.19× |
memcpy | 440.21 | 3,505 | 7.96× |
memrate | 3.15 | 15.67 | 4.97× |
memthrash | 129.01 | 180.94 | 1.40× |
ptr-chase | 9,065,281 | 61,398,166 | 6.77× |
spinmem | 917.15 | 946.91 | 1.03× |
stream | 1,207 | 117,618 | 97.42× |
vm | 59,347 | 529,346 | 8.92× |
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
| INSTANCE | vCPUs | MEMORY | Accelerators |
|---|---|---|---|
| cx23 | 2 | 4 GiB | 0 |
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