Best single-core performance servers with 4 GiB of memory
This is a manually curated list of low memory (4 GiB) servers with the best single-core performance as per stress-ng's div16 CPU burning method.
Note that servers using the same CPU model at the same vendor were deduplicated, and only the cheaper options were kept -- usually with lower number of physical cores (e.g. from AWS's m7a.medium and c7a.large showing only m7a.medium with a single core; or from c6i.large, c6in.large, and c6id.large showing only c6i.large).
CPX21 💰 🥇 💪 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Vendor |  | |  |  |  | | |  |
| SCore All | 3032 | 2985 | 2926 | 2701 | 7981 | 2647 | 2643 | 1545 |
| SCore Single | 3032 | 2985 | 2922 | 2701 | 2667 | 2647 | 2642 | 783 |
CPU | ||||||||
vCPUs | 1 | 2 | 2 | 2 | 3 | 1 | 2 | 2 |
Hypervisor | nitro | nitro | Microsoft Hyper-V | QEMU | KVM | |||
CPU Allocation | Dedicated | Dedicated | Dedicated | Burstable | Shared | Dedicated | Shared | Shared |
CPU Cores | 1 | 1 | 1 | 1 | 3 | 1 | 1 | 2 |
CPU Speed | 3.7 GHz | 3.6 GHz | 3.525 GHz | 2 GHz | 2.2 GHz | 2 GHz | ||
CPU Architecture | x86_64 | x86_64 | x86_64 | x86_64 | x86_64 | x86_64 | x86_64 | x86_64 |
CPU Manufacturer | AMD | AMD | AMD | AMD | AMD | AMD | Intel | AMD |
CPU Family | EPYC | EPYC | EPYC | EPYC | EPYC | EPYC | Xeon | EPYC |
CPU Model | 9R14 | 7R13 | 7B13 | 7763 | 7B13 | 7542 | ||
CPU L1 Cache | 32 KiB | 32 KiB | 32 KiB | 32 KiB | 96 KiB | 32 KiB | 32 KiB | 128 KiB |
CPU L2 Cache | 1 MiB | 512 KiB | 512 KiB | 512 KiB | 2 MiB | 512 KiB | 256 KiB | 1 MiB |
CPU L3 Cache | 4 MiB | 4 MiB | 32 MiB | 32 MiB | 16 MiB | 32 MiB | 55 MiB | 32 MiB |
Memory | ||||||||
Memory Amount | 4 GiB | 4 GiB | 4 GiB | 4 GiB | 4 GiB | 4 GiB | 4 GiB | 4 GiB |
Memory Generation | DDR5 | DDR4 | ||||||
Memory Speed | 4800 Mhz | 2933 Mhz | ||||||
GPU | ||||||||
GPU Count | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Storage | ||||||||
Storage Size | - | - | - | - | 80 GB | - | - | - |
Storage Type | ssd | |||||||
Network | ||||||||
Network Speed | 0.39 Gbps | 0.781 Gbps | ||||||
Inbound Traffic | 0 GB/month | 0 GB/month | 0 GB/month | 0 GB/month | 0 GB/month | 0 GB/month | 0 GB/month | 0 GB/month |
Outbound Traffic | 0 GB/month | 0 GB/month | 0 GB/month | 0 GB/month | 20480 GB/month | 0 GB/month | 0 GB/month | 2048 GB/month |
IPv4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Memory Bandwidth | ||||||||
Compression | ||||||||
OpenSSL | ||||||||
Geekbench | ||||||||
PassMark (CPU) | ||||||||
String Sorting | 3.64K | 4.94K | 4.94K | 4.50K | 9.03K | 3.05K | 4.50K | 5.72K |
Single Threaded | 2.67K | 2.60K | 2.52K | 2.33K | 2.34K | 2.12K | 2.30K | 2.19K |
Prime Numbers | 19.44 | 21.32 | 21.25 | 19.69 | 47.39 | 15.54 | 19.02 | 32.40 |
Physics | 339.52 | 427.45 | 430.80 | 394.28 | 832.05 | 279.92 | 387.21 | 542.92 |
Mark | 2.67K | 3.43K | 3.38K | 3.13K | 6.52K | 2.23K | 3.11K | 4.19K |
Integer Maths | 5.96K | 9.13K | 8.92K | 8.25K | 15.44K | 5.11K | 8.22K | 9.60K |
Floating Point Maths | 5.24K | 5.04K | 4.94K | 4.58K | 12.28K | 4.14K | 4.55K | 6.94K |
Extended Instructions | 2.27K | 1.91K | 1.90K | 1.77K | 5.34K | 1.78K | 1.74K | 3.39K |
Encryption | 1.29K | 2.37K | 2.32K | 2.15K | 3.33K | 1.10K | 2.13K | 2.31K |
Compression | 24.75K | 35.61K | 34.74K | 32.26K | 64.26K | 21.35K | 32.27K | 41.78K |
PassMark (Memory) | ||||||||
Memory Write | 24.75K | 15.06K | 18.73K | 19.25K | 15.53K | 15.36K | 8.18K | 11.66K |
Memory Read Uncached | 26.35K | 16.57K | 18.19K | 18.94K | 14.94K | 15.12K | 12.51K | 11.74K |
Memory Read Cached | 27.41K | 26.17K | 26.03K | 24.20K | 23.05K | 23.69K | 23.81K | 25.28K |
Memory Mark | 952.51 | 996.86 | 1.15K | 1.09K | 1.15K | 989.79 | 817.13 | 1.05K |
Memory Latency | 82.77 | 69.82 | 59.57 | 61.32 | 69.39 | 71.88 | 99.84 | 56.03 |
Database Operations | 954.76 | 953.53 | 1.01K | 978.00 | 2.50K | 845.77 | 884.33 | 1.36K |
Stress-ng div16 Raw Scores per vCPU | ||||||||
Stress-ng Relative Multicore Performance per vCPU | ||||||||
LLM Inference Speed | ||||||||
Further Benchmarks | ||||||||
stress-ng CPU all | ||||||||
stress-ng div16 multi-core | ||||||||
stress-ng div16 single-core | ||||||||
Memory latency | ||||||||
Memory write bandwidth | ||||||||
Memory read bandwidth | ||||||||
Memory copy bandwidth | ||||||||
BogoMips | ||||||||
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