r8gn.16xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r8gn.16xlarge |
Description | Memory optimized [AWS Graviton processors] [Network and EBS optimized] Gen8 16xlarge |
Family | r8gn |
Hw Virt | |
Status | active |
Observed At | 2026-07-16T23:53:07.226021 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Oregon (US) / us-west-2 | 1.634933 USD/h | 5.8298 USD/h |
Northern Virgina (US) / us-east-1 | 2.816775 USD/h | 5.8298 USD/h |
Processor
vCPUs | 64 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 64 |
CPU Speed | 2.8 GHz |
CPU Architecture | arm64 |
CPU Manufacturer | AWS |
CPU Family | ARMv9 |
CPU Model | Neoverse-V2 |
CPU L1D Cache | 64 KiB |
CPU L1D Cache Total | 4 MiB |
CPU L1I Cache | 64 KiB |
CPU L1I Cache Total | 4 MiB |
CPU L2 Cache | 2 MiB |
CPU L2 Cache Total | 128 MiB |
CPU L3 Cache | 36 MiB |
CPU L3 Cache Total | 36 MiB |
CPU Flags | fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, jscvt, fcma, lrcpc, dcpop, sha3, asimddp, sha512, sve, asimdfhm, dit, uscat, ilrcpc, flagm, sb, paca, pacg, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, rng, bti |
Ecpus | 63.9 |
Scalability | 99.84 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 512 GiB |
Memory Amount Actual | 504 GiB |
| 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 | 200 Gbps |
Network Speed Max | 200 Gbps |
Network Storage Speed Baseline | 40 Gbps |
Network Storage Speed Max | 40 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
An ARM64 memory-optimized platform featuring dedicated physical cores, massive memory bandwidth, and high-speed networking for demanding database workloads.
Amazon Web Services r8gn.16xlarge is an ARM64 memory-optimized instance featuring 64 dedicated physical cores on the AWS Graviton ARMv9 Neoverse-V2 architecture. Operating at 2.8 GHz, it provides 512.0 GB of RAM, establishing an 8.0 GB per core ratio. The instance lacks local storage and GPUs, relying instead on a 200 Gbps baseline network bandwidth for EBS and network connectivity. Benchmarks show top-tier memory bandwidth, with cached reads at 7394.84 GB/sec, and exceptional database performance, including 133.96 million Redis SET operations per second. Multi-core processing is strong, though small-model LLM text generation is a performance bottleneck. This instance offers high resource density and qualitative cost efficiency for memory-intensive deployments. It is suited for in-memory databases, high-throughput web serving, software compilation, and memory-bound enterprise workloads.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 44158 |
Compression | 425174 |
Encryption | 12103 |
Extended Instructions | 56201 |
Floating Point Maths | 387654 |
Integer Maths | 333671 |
Physics | 16840 |
Prime Numbers | 695 |
Single Threaded | 1943 |
String Sorting | 293346 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 3464 |
Database Operations | 48122 |
Memory Latency | 45 |
Memory Read Cached | 21163 |
Memory Read Uncached | 20364 |
Memory Write | 21293 |
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 |
|---|---|---|---|
| r8gn.medium | 1 | 8 GiB | 0 |
| r8gn.large | 2 | 16 GiB | 0 |
| r8gn.xlarge | 4 | 32 GiB | 0 |
| r8gn.2xlarge | 8 | 64 GiB | 0 |
| r8gn.4xlarge | 16 | 128 GiB | 0 |
| r8gn.8xlarge | 32 | 256 GiB | 0 |
| r8gn.12xlarge | 48 | 384 GiB | 0 |
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