r7a.12xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r7a.12xlarge |
Description | Memory optimized [AMD processors] Gen7 12xlarge |
Family | r7a |
Hw Virt | |
Status | active |
Observed At | 2026-07-16T11:33:34.504489 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 0.8915 USD/h | 3.6516 USD/h |
Northern Virgina (US) / us-east-1 | 1.38982 USD/h | 3.6516 USD/h |
Oregon (US) / us-west-2 | 1.48605 USD/h | 3.6516 USD/h |
Hyderabad (IN) / ap-south-2 | 0.62755 USD/h | 3.7675 USD/h |
Stockholm (SE) / eu-north-1 | 0.864933 USD/h | 3.8832 USD/h |
Aragón (ES) / eu-south-2 | 1.6622 USD/h | 4.0862 USD/h |
Dublin (IE) / eu-west-1 | 1.878367 USD/h | 4.0862 USD/h |
Tokyo (JP) / ap-northeast-1 | 1.0837 USD/h | 4.405 USD/h |
Frankfurt (DE) / eu-central-1 | 1.639133 USD/h | 4.405 USD/h |
Processor
vCPUs | 48 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 48 |
CPU Speed | 3.7 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | AMD |
CPU Family | EPYC |
CPU Model | 9R14 |
CPU L1D Cache | 32 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, 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, bmi1, avx2, smep, bmi2, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, flush_l1d |
Ecpus | 48 |
Scalability | 100 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 384 GiB |
Memory Amount Actual | 384 GiB |
Memory Generation | DDR5 |
Memory Speed | 4800 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 | 18.75 Gbps |
Network Speed Max | 18.75 Gbps |
Network Storage Speed Baseline | 15 Gbps |
Network Storage Speed Max | 15 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
A memory-optimized, high-frequency AMD EPYC instance delivering top-tier multi-core performance and DDR5 memory bandwidth for demanding enterprise workloads.
Amazon Web Services r7a.12xlarge is a memory-optimized server instance powered by an AMD EPYC 9R14 processor with 48 dedicated physical cores operating at 3.7 GHz. Built on the x86_64 architecture and managed by the Nitro hypervisor, it features 384.0 GB of DDR5 memory running at 5 GHz, yielding 8.0 GB of RAM per core. The instance lacks local storage and GPUs but provides a baseline network bandwidth of 19 Gbps. Benchmark data highlights top-tier multi-core CPU performance and strong memory bandwidth, with excellent results in software compilation, image processing, and database operations. This hardware profile makes the r7a.12xlarge highly efficient for memory-intensive workloads, including large-scale databases, in-memory caches, and medium-scale language model inference.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 79414 |
Compression | 1195413 |
Encryption | 62860 |
Extended Instructions | 97657 |
Floating Point Maths | 255041 |
Integer Maths | 290101 |
Physics | 11818 |
Prime Numbers | 895 |
Single Threaded | 2883 |
String Sorting | 173779 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2777 |
Database Operations | 28962 |
Memory Latency | 80 |
Memory Read Cached | 27848 |
Memory Read Uncached | 26941 |
Memory Write | 25653 |
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 |
|---|---|---|---|
| r7a.medium | 1 | 8 GiB | 0 |
| r7a.large | 2 | 16 GiB | 0 |
| r7a.xlarge | 4 | 32 GiB | 0 |
| r7a.2xlarge | 8 | 64 GiB | 0 |
| r7a.4xlarge | 16 | 128 GiB | 0 |
| r7a.8xlarge | 32 | 256 GiB | 0 |
| r7a.16xlarge | 64 | 512 GiB | 0 |
Similar Servers
| INSTANCE | VENDOR | vCPUs | MEMORY | GPUs |
|---|