r8a.12xlarge by Amazon Web Services
r8a.12xlarge is a Memory optimized [AMD processors] Gen8 12xlarge server offered by Amazon Web Services with 48 vCPUs, 384 GiB of memory and 0 GB of storage. The pricing starts at 0.61 USD per hour.
48 vCPU
384 GiB Memory
Spare SCore
179001
(All-cores)
(All-cores)
3768
(Single-core)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r8a.12xlarge |
Description | Memory optimized [AMD processors] Gen8 12xlarge |
Family | r8a |
Status | active |
Observed At | 2026-04-27T06:31:50.913228 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 1.545833 USD/h | 3.8342 USD/h |
Oregon (US) / us-west-2 | 1.39885 USD/h | 3.8342 USD/h |
Northern Virgina (US) / us-east-1 | 1.632133 USD/h | 3.8342 USD/h |
Aragón (ES) / eu-south-2 | 0.63195 USD/h | 4.2905 USD/h |
Dublin (IE) / eu-west-1 | 2.06435 USD/h | 4.2905 USD/h |
Tokyo (JP) / ap-northeast-1 | 1.2394 USD/h | 4.6253 USD/h |
Frankfurt (DE) / eu-central-1 | 2.05435 USD/h | 4.6253 USD/h |
Processor
vCPUs | 48 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 48 |
CPU Speed | 4.5 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | AMD |
CPU Family | EPYC |
CPU Model | 9R45 |
CPU L1D Cache | 48 KiB |
CPU L1D Cache Total | 2 MiB |
CPU L1I Cache | 32 KiB |
CPU L1I Cache Total | 2 MiB |
CPU L2 Cache | 1 MiB |
CPU L2 Cache Total | 48 MiB |
CPU L3 Cache | 32 MiB |
CPU L3 Cache Total | 192 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, xtopology, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, ssbd, perfmon_v2, ibrs, ibpb, stibp, ibrs_enhanced, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx_vnni, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, movdiri, movdir64b, fsrm, avx512_vp2intersect, flush_l1d |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 384 GiB |
Memory Generation | DDR5 |
Memory Speed | 6400 Mhz |
| GPU | |
|---|---|
GPU Count | 0 |
GPUs |
| STORAGE | |
|---|---|
Storage Size | 0 GB |
Storages |
| NETWORK | |
|---|---|
Network Speed | 22.5 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Score: 2,824
Geekbench Multi-Core
Score: 29,928
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 102263 |
Compression | 1473342 |
Encryption | 75610 |
Extended Instructions | 125933 |
Floating Point Maths | 363478 |
Integer Maths | 362781 |
Physics | 17162 |
Prime Numbers | 1261 |
Single Threaded | 3833 |
String Sorting | 203587 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2853 |
Database Operations | 41573 |
Memory Latency | 85 |
Memory Read Cached | 33981 |
Memory Read Uncached | 32624 |
Memory Write | 33033 |
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 |
|---|---|---|---|
| r8a.medium | 1 | 8 GiB | 0 |
| r8a.large | 2 | 16 GiB | 0 |
| r8a.xlarge | 4 | 32 GiB | 0 |
| r8a.2xlarge | 8 | 64 GiB | 0 |
| r8a.4xlarge | 16 | 128 GiB | 0 |
| r8a.8xlarge | 32 | 256 GiB | 0 |
| r8a.16xlarge | 64 | 512 GiB | 0 |
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