r5b.12xlarge by Amazon Web Services
r5b.12xlarge is a Memory optimized Gen5 12xlarge server offered by Amazon Web Services with 48 vCPUs, 384 GiB of memory and 0 GB of storage. The pricing starts at 0.42 USD per hour.
48 vCPU
384 GiB Memory
Spare SCore
40672
(All-cores)
(All-cores)
1381
(Single-core)
(Single-core)
Specifications
Server Details
| General | |
|---|---|
Vendor ID | aws |
Server ID | r5b.12xlarge |
Name | r5b.12xlarge |
API Reference | r5b.12xlarge |
Display Name | r5b.12xlarge |
Description | Memory optimized Gen5 12xlarge |
Family | r5b |
Status | active |
Observed At | 2026-02-05T23:40:56.378284 |
| CPU | |
|---|---|
vCPUs | 48 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 24 |
CPU Speed | 3.1 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | Intel |
CPU Family | Xeon |
CPU Model | 8259CL |
CPU L1 Cache | 768 KiB |
CPU L2 Cache | 24 MiB |
CPU L3 Cache | 36 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, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, mpx, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, ida, arat, pku, ospke, avx512_vnni |
| Memory | |
|---|---|
Memory Amount | 384 GiB |
Memory Generation | DDR4 |
Memory Speed | 3200 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 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 1.514833 USD/h | 3.576 USD/h |
Northern Virgina (US) / us-east-1 | 1.84165 USD/h | 3.576 USD/h |
Oregon (US) / us-west-2 | 2.1767 USD/h | 3.576 USD/h |
Stockholm (SE) / eu-north-1 | 0.59795 USD/h | 3.7906 USD/h |
Quebec (CA) / ca-central-1 | 2.0589 USD/h | 3.912 USD/h |
Dublin (IE) / eu-west-1 | 1.967833 USD/h | 4.008 USD/h |
Milan (IT) / eu-south-1 | 0.5362 USD/h | 4.2 USD/h |
London (GB) / eu-west-2 | 1.427533 USD/h | 4.2 USD/h |
Seoul (KR) / ap-northeast-2 | 1.403733 USD/h | 4.272 USD/h |
Singapore (SG) / ap-southeast-1 | 1.5188 USD/h | 4.272 USD/h |
Frankfurt (DE) / eu-central-1 | 1.7132 USD/h | 4.272 USD/h |
Tokyo (JP) / ap-northeast-1 | 1.1371 USD/h | 4.344 USD/h |
Sydney (AU) / ap-southeast-2 | 1.5679 USD/h | 4.344 USD/h |
Sao Paulo (BR) / sa-east-1 | 3.316067 USD/h | 5.688 USD/h |
Economics
Performance
Alternatives
Servers of the Same Family
| INSTANCE | vCPUs | MEMORY | GPUs |
|---|---|---|---|
| r5b.large | 2 | 16 GiB | 0 |
| r5b.xlarge | 4 | 32 GiB | 0 |
| r5b.2xlarge | 8 | 64 GiB | 0 |
| r5b.4xlarge | 16 | 128 GiB | 0 |
| r5b.8xlarge | 32 | 256 GiB | 0 |
| r5b.16xlarge | 64 | 512 GiB | 0 |
| r5b.24xlarge | 96 | 768 GiB | 0 |
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