hetzner

Hetzner Servers Benchmarks

Cristian Buleandra

19 Jul 2025 — 3 min read

EDITED: 4 November 2025 - Added EX63 benchmarks

I wanted to quickly compare how different Hetzner servers are doing (especially in single-threaded), for CPU-intensive tasks.

I ran sysbench on four different machines:

Hetzner Cloud CPX21 (AMD EPYC Processor, 3vCPU, 4GB RAM) ~9EUR/mo
Hetzner Dedicated EX44 (i5-13500, 64GB RAM) ~40EUR/mo
Hetzner Server Auction (i7-8700 128GB RAM) ~ 40EUR/mo
NEW: Hetzner Dedicated EX63 (Intel Ultra 7 265, 64GB RAM) ~69EUR/mo

Benchmark

Install

sudo apt-get install sysbench

Run

Each benchmark is run 3 times and the best result is taken.

sysbench cpu run

sysbench --threads="$(nproc)" cpu run

Results summary

Results - Single Thread

EX63 - Score: 4343.19

CPU speed:
    events per second:  4343.19

General statistics:
    total time:                          10.0003s
    total number of events:              43437

Latency (ms):
         min:                                    0.23
         avg:                                    0.23
         max:                                    0.30
         95th percentile:                        0.23
         sum:                                 9997.49

Threads fairness:
    events (avg/stddev):           43437.0000/0.00
    execution time (avg/stddev):   9.9975/0.00

EX44 - Score: 4133.64

CPU speed:
    events per second:  4133.64

General statistics:
    total time:                          10.0001s
    total number of events:              41341

Latency (ms):
         min:                                    0.24
         avg:                                    0.24
         max:                                    1.38
         95th percentile:                        0.24
         sum:                                 9997.37

Threads fairness:
    events (avg/stddev):           41341.0000/0.00
    execution time (avg/stddev):   9.9974/0.00

CPX21 - Score: 1617.52

CPU speed:
    events per second:  1617.52

General statistics:
    total time:                          10.0004s
    total number of events:              16180

Latency (ms):
         min:                                    0.60
         avg:                                    0.62
         max:                                    1.61
         95th percentile:                        0.63
         sum:                                 9992.39

Threads fairness:
    events (avg/stddev):           16180.0000/0.00
    execution time (avg/stddev):   9.9924/0.00

Server Auction - Score: 1480.96

CPU speed:
    events per second:  1480.96

General statistics:
    total time:                          10.0004s
    total number of events:              14812

Latency (ms):
         min:                                    0.63
         avg:                                    0.67
         max:                                    5.08
         95th percentile:                        0.70
         sum:                                 9996.86

Threads fairness:
    events (avg/stddev):           14812.0000/0.00
    execution time (avg/stddev):   9.9969/0.00

Results multi-thread

EX63 - 20 Threads - Score: 119944.36

CPU speed:
    events per second: 119944.36

General statistics:
    total time:                          10.0002s
    total number of events:              1199585

Latency (ms):
         min:                                    0.13
         avg:                                    0.17
         max:                                   51.71
         95th percentile:                        0.27
         sum:                               199882.53

Threads fairness:
    events (avg/stddev):           59979.2500/16640.80
    execution time (avg/stddev):   9.9941/0.00

EX44 - 20 Threads - Score: 50234.72

CPU speed:
    events per second: 50234.72

General statistics:
    total time:                          10.0004s
    total number of events:              502411

Latency (ms):
         min:                                    0.31
         avg:                                    0.40
         max:                                    2.83
         95th percentile:                        0.50
         sum:                               199942.86

Threads fairness:
    events (avg/stddev):           25120.5500/5829.86
    execution time (avg/stddev):   9.9971/0.00

CPX21 - 3 Threads - Score: 4835.93

CPU speed:
    events per second:  4835.93

General statistics:
    total time:                          10.0005s
    total number of events:              48367

Latency (ms):
         min:                                    0.59
         avg:                                    0.62
         max:                                    6.65
         95th percentile:                        0.63
         sum:                                29973.72

Threads fairness:
    events (avg/stddev):           16122.3333/13.82
    execution time (avg/stddev):   9.9912/0.00

Server Auction - 12 Threads - Score: 13043.05

CPU speed:
    events per second: 13043.05

General statistics:
    total time:                          10.0012s
    total number of events:              130462

Latency (ms):
         min:                                    0.79
         avg:                                    0.92
         max:                                   36.89
         95th percentile:                        0.92
         sum:                               119976.77

Threads fairness:
    events (avg/stddev):           10871.8333/179.77
    execution time (avg/stddev):   9.9981/0.00

ℹ️

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https://hetzner.cloud/?ref=UbRqvwvi1mfG

Summary

EX63 (Intel Ultra 7 265) leads both single- and multi-thread performance. It scores about 5% higher than EX44 in single-thread and 2.4× higher in multi-thread.
EX44 (i5-13500) remains strong for its price, still delivering excellent per-core performance and roughly half the multi-thread throughput of EX63.
CPX21 (EPYC) and Server Auction (i7-8700) stay far behind in both metrics.

Conclusion

For CPU-bound workloads, EX63 provides top raw compute power, particularly if you can utilize all cores. EX44 continues to offer the best price-performance balance. The cloud CPX21 remains suitable for lightweight or bursty compute tasks.

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