r6i.12xlarge by Amazon Web Services
r6i.12xlarge is a Memory optimized [Intel processors] Gen6 12xlarge server offered by Amazon Web Services with 48 vCPUs, 384 GiB of memory and 0 GB of storage. The pricing starts at 0.3283 USD per hour.
48 vCPU
384 GiB Memory
Spare SCore
46463
(All-cores)
(All-cores)
1894
(Single-core)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r6i.12xlarge |
Description | Memory optimized [Intel processors] Gen6 12xlarge |
Family | r6i |
Hw Virt | |
Status | active |
Observed At | 2026-06-28T00:49:07.665205 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 0.868233 USD/h | 3.024 USD/h |
Oregon (US) / us-west-2 | 1.063225 USD/h | 3.024 USD/h |
Northern Virgina (US) / us-east-1 | 1.36668 USD/h | 3.024 USD/h |
(TH) / ap-southeast-7 | 0.754033 USD/h | 3.1008 USD/h |
(MY) / ap-southeast-5 | 0.9387 USD/h | 3.1008 USD/h |
Mumbai (IN) / ap-south-1 | 0.895133 USD/h | 3.12 USD/h |
Hyderabad (IN) / ap-south-2 | 0.9812 USD/h | 3.12 USD/h |
(MX) / mx-central-1 | 0.8395 USD/h | 3.1752 USD/h |
Stockholm (SE) / eu-north-1 | 0.515967 USD/h | 3.216 USD/h |
Taipei (TW) / ap-east-2 | 0.827967 USD/h | 3.2832 USD/h |
Calgary (CA) / ca-west-1 | 0.402567 USD/h | 3.312 USD/h |
Quebec (CA) / ca-central-1 | 1.101233 USD/h | 3.312 USD/h |
California (US) / us-west-1 | 1.1803 USD/h | 3.36 USD/h |
Dublin (IE) / eu-west-1 | 1.400933 USD/h | 3.384 USD/h |
Milan (IT) / eu-south-1 | 0.998467 USD/h | 3.552 USD/h |
London (GB) / eu-west-2 | 1.1368 USD/h | 3.552 USD/h |
Paris (FR) / eu-west-3 | 1.317033 USD/h | 3.552 USD/h |
Tel Aviv (IL) / il-central-1 | 0.888133 USD/h | 3.5532 USD/h |
Sydney (AU) / ap-southeast-2 | 1.558267 USD/h | 3.624 USD/h |
Seoul (KR) / ap-northeast-2 | 1.460175 USD/h | 3.648 USD/h |
Tokyo (JP) / ap-northeast-1 | 1.272233 USD/h | 3.648 USD/h |
Frankfurt (DE) / eu-central-1 | 1.433267 USD/h | 3.648 USD/h |
Osaka (JP) / ap-northeast-3 | 1.558 USD/h | 3.648 USD/h |
Singapore (SG) / ap-southeast-1 | 1.824067 USD/h | 3.648 USD/h |
United Arab Emirates / me-central-1 | 1.016 USD/h | 3.7224 USD/h |
(NZ) / ap-southeast-6 | 0.873833 USD/h | 3.8052 USD/h |
Hong Kong (HK) / ap-east-1 | 0.827567 USD/h | 4.008 USD/h |
Zurich (CH) / eu-central-2 | 1.643033 USD/h | 4.0128 USD/h |
Cape Town (ZA) / af-south-1 | 0.4108 USD/h | 4.032 USD/h |
Sao Paulo (BR) / sa-east-1 | 1.489633 USD/h | 4.824 USD/h |
Processor
vCPUs | 48 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 24 |
CPU Speed | 3.5 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | Intel |
CPU Family | Xeon |
CPU Model | 8375C |
CPU L1D Cache | 48 KiB |
CPU L1D Cache Total | 1 MiB |
CPU L1I Cache | 32 KiB |
CPU L1I Cache Total | 768 KiB |
CPU L2 Cache | 1 MiB |
CPU L2 Cache Total | 30 MiB |
CPU L3 Cache | 54 MiB |
CPU L3 Cache Total | 54 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, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, ssbd, ibrs, ibpb, stibp, ibrs_enhanced, 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, wbnoinvd, ida, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, rdpid, md_clear, flush_l1d, arch_capabilities |
Ecpus | 24.5 |
Scalability | 102.08 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 384 GiB |
Memory Amount Actual | 384 GiB |
Memory Generation | DDR4 |
Memory Speed | 3200 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 virtual server featuring forty-eight vCPUs and three hundred eighty-four gigabytes of RAM for memory-intensive enterprise workloads.
Memory OptimizedGeneral Purpose
Amazon Web Services r6i.12xlarge is a memory-optimized instance powered by the AWS Nitro hypervisor and an Intel Xeon 8375C processor. Operating on the x86_64 architecture, it delivers 48 vCPUs across 24 physical cores at 3.5 GHz, paired with 384.0 GB of DDR4 memory. The instance features a 19 Gbps baseline network bandwidth, with no local storage or GPU accelerators. Benchmark data indicates solid mid-tier performance, with a Passmark CPU score of 48391.39 and a Redis SET throughput of 45.38 million operations per second. It shows strong capabilities in encryption and image processing, though large-scale LLM inference remains a bottleneck. This hardware profile is designed for memory-intensive workloads such as in-memory databases, caching layers, and enterprise applications that require a high memory-to-vCPU ratio without local storage dependencies.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Score: 1,642
Geekbench Multi-Core
Score: 15,739
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 48391 |
Compression | 728880 |
Encryption | 43366 |
Extended Instructions | 41818 |
Floating Point Maths | 102915 |
Integer Maths | 201326 |
Physics | 3974 |
Prime Numbers | 230 |
Single Threaded | 2367 |
String Sorting | 98731 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2623 |
Database Operations | 21116 |
Memory Latency | 60 |
Memory Read Cached | 24311 |
Memory Read Uncached | 11768 |
Memory Write | 10601 |
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 |
|---|---|---|---|
| r6i.large | 2 | 16 GiB | 0 |
| r6i.xlarge | 4 | 32 GiB | 0 |
| r6i.2xlarge | 8 | 64 GiB | 0 |
| r6i.4xlarge | 16 | 128 GiB | 0 |
| r6i.8xlarge | 32 | 256 GiB | 0 |
| r6i.16xlarge | 64 | 512 GiB | 0 |
| r6i.24xlarge | 96 | 768 GiB | 0 |
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