r5a.large by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r5a.large |
Description | Memory optimized [AMD processors] Gen5 large |
Family | r5a |
Hw Virt | |
Status | active |
Observed At | 2026-07-12T09:32:02.249152 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Mumbai (IN) / ap-south-1 | 0.0274 USD/h | 0.072 USD/h |
Ohio (US) / us-east-2 | 0.0395 USD/h | 0.113 USD/h |
Oregon (US) / us-west-2 | 0.051025 USD/h | 0.113 USD/h |
Northern Virgina (US) / us-east-1 | 0.0522 USD/h | 0.113 USD/h |
Quebec (CA) / ca-central-1 | 0.04735 USD/h | 0.124 USD/h |
California (US) / us-west-1 | 0.0498 USD/h | 0.126 USD/h |
Dublin (IE) / eu-west-1 | 0.059167 USD/h | 0.127 USD/h |
Milan (IT) / eu-south-1 | 0.039867 USD/h | 0.133 USD/h |
London (GB) / eu-west-2 | 0.047167 USD/h | 0.133 USD/h |
Paris (FR) / eu-west-3 | 0.076033 USD/h | 0.133 USD/h |
Seoul (KR) / ap-northeast-2 | 0.0541 USD/h | 0.136 USD/h |
Sydney (AU) / ap-southeast-2 | 0.053967 USD/h | 0.136 USD/h |
Singapore (SG) / ap-southeast-1 | 0.057167 USD/h | 0.136 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.0526 USD/h | 0.137 USD/h |
Frankfurt (DE) / eu-central-1 | 0.059933 USD/h | 0.137 USD/h |
Sao Paulo (BR) / sa-east-1 | 0.0404 USD/h | 0.181 USD/h |
Processor
vCPUs | 2 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 1 |
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 | 32 KiB |
CPU L1I Cache | 64 KiB |
CPU L1I Cache Total | 64 KiB |
CPU L2 Cache | 512 KiB |
CPU L2 Cache Total | 512 KiB |
CPU L3 Cache | 8 MiB |
CPU L3 Cache Total | 8 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, 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, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, arat, npt, nrip_save |
Ecpus | 1 |
Scalability | 100 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 16 GiB |
Memory Amount Actual | 16 GiB |
Memory Generation | DDR4 |
Memory Speed | 2667 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 | 0.75 Gbps |
Network Speed Max | 10 Gbps |
Network Storage Speed Baseline | 0.65 Gbps |
Network Storage Speed Max | 2.88 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
A memory-optimized virtual instance with a high memory-to-core ratio, designed for lightweight caching and memory-bound workloads.
Amazon Web Services r5a.large is a memory-optimized instance featuring 2 vCPUs and 16.0 GB of DDR4 RAM. Powered by an AMD EPYC 7571 processor at 2.5 GHz on the Nitro hypervisor, it provides a high memory-to-vCPU ratio of 8.0 GB per core. The instance lacks local storage and dedicated GPU hardware, relying on a 1 Gbps baseline network connection. Benchmark results show limited processing and memory bandwidth capabilities, with most CPU and memory tests scoring in the bottom 10% to 25%. Consequently, the r5a.large is best suited for memory-bound workloads with low CPU demands, such as small caching layers or lightweight database instances.
Economics
Performance
Workload Profiles
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 1826 |
Compression | 21079 |
Encryption | 1602 |
Extended Instructions | 773 |
Floating Point Maths | 2707 |
Integer Maths | 5127 |
Physics | 191 |
Prime Numbers | 7 |
Single Threaded | 1400 |
String Sorting | 3213 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 1361 |
Database Operations | 494 |
Memory Latency | 77 |
Memory Read Cached | 14393 |
Memory Read Uncached | 10702 |
Memory Write | 7494 |
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.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.16xlarge | 64 | 512 GiB | 0 |
| r5a.24xlarge | 96 | 768 GiB | 0 |
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