r5a.16xlarge by Amazon Web Services
r5a.16xlarge is a Memory optimized [AMD processors] Gen5 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 0 GB of storage. The pricing starts at 0.4992 USD per hour.
64 vCPU
512 GiB Memory
Spare SCore
18881
(All-cores)
(All-cores)
591
(Single-core)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r5a.16xlarge |
Description | Memory optimized [AMD processors] Gen5 16xlarge |
Family | r5a |
Status | active |
Observed At | 2026-03-29T20:06:35.406758 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Mumbai (IN) / ap-south-1 | 1.088733 USD/h | 2.288 USD/h |
Northern Virgina (US) / us-east-1 | 1.11624 USD/h | 3.616 USD/h |
Ohio (US) / us-east-2 | 1.3587 USD/h | 3.616 USD/h |
Oregon (US) / us-west-2 | 1.1649 USD/h | 3.616 USD/h |
Quebec (CA) / ca-central-1 | 1.50885 USD/h | 3.968 USD/h |
California (US) / us-west-1 | 1.43205 USD/h | 4.032 USD/h |
Dublin (IE) / eu-west-1 | 1.889133 USD/h | 4.064 USD/h |
Milan (IT) / eu-south-1 | 0.9593 USD/h | 4.256 USD/h |
Paris (FR) / eu-west-3 | 0.779133 USD/h | 4.256 USD/h |
London (GB) / eu-west-2 | 1.065567 USD/h | 4.256 USD/h |
Seoul (KR) / ap-northeast-2 | 1.1672 USD/h | 4.352 USD/h |
Sydney (AU) / ap-southeast-2 | 1.720933 USD/h | 4.352 USD/h |
Singapore (SG) / ap-southeast-1 | 1.838567 USD/h | 4.352 USD/h |
Tokyo (JP) / ap-northeast-1 | 1.299 USD/h | 4.384 USD/h |
Frankfurt (DE) / eu-central-1 | 1.461233 USD/h | 4.384 USD/h |
Sao Paulo (BR) / sa-east-1 | 1.4563 USD/h | 5.792 USD/h |
Processor
vCPUs | 64 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 32 |
CPU Speed | 2.5 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | AMD |
CPU Family | EPYC |
CPU Model | 7571 |
CPU L1D Cache | 32 KiB |
CPU L1D Cache Total | 1 MiB |
CPU L1I Cache | 64 KiB |
CPU L1I Cache Total | 2 MiB |
CPU L2 Cache | 512 KiB |
CPU L2 Cache Total | 16 MiB |
CPU L3 Cache | 8 MiB |
CPU L3 Cache Total | 64 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, constant_tsc, rep_good, nopl, nonstop_tsc, cpuid, extd_apicid, amd_dcm, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, arat, npt, nrip_save |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 512 GiB |
Memory Generation | DDR4 |
Memory Speed | 2667 Mhz |
| GPU | |
|---|---|
GPU Count | 0 |
GPUs |
| STORAGE | |
|---|---|
Storage Size | 0 GB |
Storages |
| NETWORK | |
|---|---|
Network Speed | 12 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Score: 727
Geekbench Multi-Core
Score: 7,518
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 36740 |
Compression | 697786 |
Encryption | 51705 |
Extended Instructions | 25881 |
Floating Point Maths | 87355 |
Integer Maths | 165840 |
Physics | 3458 |
Prime Numbers | 147 |
Single Threaded | 1448 |
String Sorting | 92391 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2163 |
Database Operations | 14868 |
Memory Latency | 63 |
Memory Read Cached | 14848 |
Memory Read Uncached | 10940 |
Memory Write | 8254 |
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 |
|---|---|---|---|
| r5a.large | 2 | 16 GiB | 0 |
| r5a.xlarge | 4 | 32 GiB | 0 |
| r5a.2xlarge | 8 | 64 GiB | 0 |
| r5a.4xlarge | 16 | 128 GiB | 0 |
| r5a.8xlarge | 32 | 256 GiB | 0 |
| r5a.12xlarge | 48 | 384 GiB | 0 |
| r5a.24xlarge | 96 | 768 GiB | 0 |
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