m5zn.12xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | m5zn.12xlarge |
Description | General purpose [Network and EBS optimized] [High performance] Gen5 12xlarge |
Family | m5zn |
Hw Virt | |
Status | active |
Observed At | 2026-08-05T00:14:21.867335 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 1.109367 USD/h | 3.9641 USD/h |
Oregon (US) / us-west-2 | 1.558533 USD/h | 3.9641 USD/h |
Northern Virgina (US) / us-east-1 | 1.73748 USD/h | 3.9641 USD/h |
Dublin (IE) / eu-west-1 | 1.549633 USD/h | 4.4184 USD/h |
California (US) / us-west-1 | 1.7002 USD/h | 4.6248 USD/h |
Frankfurt (DE) / eu-central-1 | 1.99955 USD/h | 4.7486 USD/h |
Seoul (KR) / ap-northeast-2 | 1.33335 USD/h | 4.872 USD/h |
Singapore (SG) / ap-southeast-1 | 1.23675 USD/h | 4.956 USD/h |
Sydney (AU) / ap-southeast-2 | 1.55185 USD/h | 4.956 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.892333 USD/h | 5.1204 USD/h |
Sao Paulo (BR) / sa-east-1 | 1.18415 USD/h | 6.3178 USD/h |
Processor
vCPUs | 48 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 24 |
CPU Speed | 4.5 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | Intel |
CPU Family | Xeon |
CPU Model | 8252C |
CPU L1D Cache | 32 KiB |
CPU L1D Cache Total | 768 KiB |
CPU L1I Cache | 32 KiB |
CPU L1I Cache Total | 768 KiB |
CPU L2 Cache | 1 MiB |
CPU L2 Cache Total | 24 MiB |
CPU L3 Cache | 25 MiB |
CPU L3 Cache Total | 50 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, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, mpx, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, ida, arat, pku, ospke, avx512_vnni |
Ecpus | 31.7 |
Scalability | 132.08 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 192 GiB |
Memory Amount Actual | 192 GiB |
Memory Generation | DDR4 |
Memory Speed | 2933 Mhz |
| GPU | |
|---|---|
GPU Count | 0 |
GPU Memory Min | 0 MiB |
GPU Memory Total | 0 MiB |
GPUs |
| STORAGE | |
|---|---|
Storage Size | 0 GB |
Storages |
| NETWORK | |
|---|---|
Network Speed Baseline | 100 Gbps |
Network Speed Max | 100 Gbps |
Network Storage Speed Baseline | 19 Gbps |
Network Storage Speed Max | 19 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
A high-frequency, network-optimized virtual server featuring dedicated Intel Xeon cores and high-speed memory bandwidth for demanding general-purpose workloads.
Amazon Web Services m5zn.12xlarge is a general-purpose, network-optimized instance featuring 48 vCPUs and 24 physical cores powered by an Intel Xeon 8252C processor running at 4.5 GHz. Built on the Nitro hypervisor, it includes 192.0 GB of DDR4 memory but lacks local storage and GPU accelerators. The instance delivers a baseline network bandwidth of 100 Gbps. Performance benchmarks indicate strong memory bandwidth and single-threaded gzip compression, both ranking in the top 25%, while general CPU and database operations perform in the average range. Conversely, LLM text generation benchmarks are weak, falling in the bottom 25%. This instance is optimized for high-frequency compute tasks, network-intensive applications, and memory-bound workloads that do not require local storage.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 48931 |
Compression | 837714 |
Encryption | 26161 |
Extended Instructions | 52197 |
Floating Point Maths | 106294 |
Integer Maths | 198554 |
Physics | 4335 |
Prime Numbers | 229 |
Single Threaded | 2632 |
String Sorting | 94796 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2970 |
Database Operations | 19849 |
Memory Latency | 50 |
Memory Read Cached | 30754 |
Memory Read Uncached | 11294 |
Memory Write | 10936 |
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
| INSTANCE | vCPUs | MEMORY | GPUs |
|---|---|---|---|
| m5zn.large | 2 | 8 GiB | 0 |
| m5zn.xlarge | 4 | 16 GiB | 0 |
| m5zn.2xlarge | 8 | 32 GiB | 0 |
| m5zn.3xlarge | 12 | 48 GiB | 0 |
| m5zn.6xlarge | 24 | 96 GiB | 0 |
| m5zn.metal | 48 | 192 GiB | 0 |
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