r6g.12xlarge by Amazon Web Services

r6g.12xlarge is a Memory optimized [AWS Graviton 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 0.2568 USD per hour.
48 vCPU
384 GiB Memory
Spare SCore
72,808
(All-cores)
1,519
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6g.12xlarge
Description
Memory optimized [AWS Graviton processors] Gen6 12xlarge
Family
r6g
Hw Virt
Status
active
Observed At
2026-09-12T12:17:30.214832

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.403933 USD/h 1.56 USD/h
Mumbai (IN) / ap-south-1
0.442233 USD/h 1.56 USD/h
Northern Virgina (US) / us-east-1
0.60812 USD/h 2.4192 USD/h
Ohio (US) / us-east-2
0.615833 USD/h 2.4192 USD/h
Oregon (US) / us-west-2
0.833525 USD/h 2.4192 USD/h
(TH) / ap-southeast-7
0.940633 USD/h 2.4806 USD/h
(MY) / ap-southeast-5
0.822567 USD/h 2.4806 USD/h
(MX) / mx-central-1
1.0063 USD/h 2.5402 USD/h
Stockholm (SE) / eu-north-1
0.367833 USD/h 2.568 USD/h
Taipei (TW) / ap-east-2
0.732367 USD/h 2.6266 USD/h
Calgary (CA) / ca-west-1
0.4684 USD/h 2.6496 USD/h
Quebec (CA) / ca-central-1
0.581 USD/h 2.6496 USD/h
California (US) / us-west-1
0.7356 USD/h 2.688 USD/h
Aragón (ES) / eu-south-2
0.3089 USD/h 2.7072 USD/h
Dublin (IE) / eu-west-1
1.2006 USD/h 2.7072 USD/h
Paris (FR) / eu-west-3
0.601433 USD/h 2.832 USD/h
Milan (IT) / eu-south-1
0.522033 USD/h 2.8416 USD/h
London (GB) / eu-west-2
0.510633 USD/h 2.8416 USD/h
Tel Aviv (IL) / il-central-1
0.708033 USD/h 2.8426 USD/h
Melbourne (AU) / ap-southeast-4
0.784667 USD/h 2.8992 USD/h
Sydney (AU) / ap-southeast-2
0.862467 USD/h 2.8992 USD/h
Jakarta (ID) / ap-southeast-3
0.328833 USD/h 2.9184 USD/h
Osaka (JP) / ap-northeast-3
0.9182 USD/h 2.9184 USD/h
Tokyo (JP) / ap-northeast-1
1.0908 USD/h 2.9184 USD/h
Frankfurt (DE) / eu-central-1
1.036233 USD/h 2.9184 USD/h
Singapore (SG) / ap-southeast-1
1.483467 USD/h 2.9184 USD/h
Seoul (KR) / ap-northeast-2
0.8046 USD/h 2.928 USD/h
United Arab Emirates / me-central-1
1.2191 USD/h 2.9779 USD/h
(NZ) / ap-southeast-6
1.247333 USD/h 3.0442 USD/h
Zurich (CH) / eu-central-2
0.5999 USD/h 3.2102 USD/h
Hong Kong (HK) / ap-east-1
0.5667 USD/h 3.216 USD/h
Cape Town (ZA) / af-south-1
0.468133 USD/h 3.2256 USD/h
Sao Paulo (BR) / sa-east-1
0.443267 USD/h 3.8592 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
48
CPU Speed
2.5 GHz
CPU Architecture
arm64
CPU Manufacturer
AWS
CPU Family
ARMv8
CPU Model
Neoverse-N1
CPU L1D Cache
64 KiB
CPU L1D Cache Total
3 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
3 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
48 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
32 MiB
CPU Flags
fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, lrcpc, dcpop, asimddp, ssbs
Ecpus
47.9
Scalability
99.79

System Resources and Accelerators

MEMORY
Memory Amount
384 GiB
Memory Amount Actual
380 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
      20 Gbps
      Network Speed Max
      20 Gbps
      Network Storage Speed Baseline
      14.25 Gbps
      Network Storage Speed Max
      14.25 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARM-powered, memory-optimized virtual server delivering high memory density and strong multi-core performance for scale-out database and caching workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r6g.12xlarge is an ARM64 memory-optimized instance powered by 48 dedicated AWS Neoverse-N1 physical cores running at 2.5 GHz. Built on the Nitro hypervisor, it features 384.0 GB of system memory, providing an 8.0 GB memory-to-core ratio, alongside a 20 Gbps baseline network bandwidth. The instance lacks local storage and GPU accelerators. Benchmarks show strong multi-core CPU performance, though single-core execution and single-threaded compression tasks are weaker. Memory bandwidth is consistent, with uncached large block reads reaching 163.3 GB/sec. This hardware profile offers a cost-effective alternative to x86 systems for memory-heavy applications. It is best suited for in-memory databases, Redis caching, multi-threaded compilation, and database operations.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.94Score
      Precomputed compound score for Cache Intensive workloads. A weighted average (geometric mean) of benchmark scores compared to their medians: score = ∏ (x_i / m_i)^(w_i / Σw). The score of 1.0 represents a synthetic baseline server with the median performance of each component benchmark; 0.5 means roughly half the performance; and 2.0 means twice the performance of that reference profile. Component weights: 50% Redis RPS (pipeline=1, SET), 20% Redis RPS (pipeline=16, SET), 10% PassMark Memory Mark (composite), 10% Memory bandwidth (read, 16 MB ~ L3), 10% PassMark single-thread CPU. Rationale for component selection: In-memory key-value store workload, mixing direct Redis performance metrics with memory speed and latency benchmarks, and single-core CPU performance profiles.
      Component Score Weight Impact
      Raw Reference Normalized Target Actual
      Redis RPS (pipeline=1, SET) 5,440,132 ops/sec 1,917,397 ops/sec 2.84 50.00% 50.00% +68.50%
      Redis RPS (pipeline=16, SET) 31,095,098 ops/sec 11,681,410 ops/sec 2.66 20.00% 20.00% +21.60%
      PassMark Memory Mark (composite) 1,853 2,418 0.766 10.00% 10.00% -2.63%
      Memory bandwidth (read, 16 MB ~ L3) 171,672 MB/sec 108,140 MB/sec 1.59 10.00% 10.00% +4.75%
      PassMark single-thread CPU 1,111 Mops/s 2,365 Mops/s 0.47 10.00% 10.00% -7.27%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 952

      Geekbench Multi-Core

      Score: 12,954

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 23345
      Compression
      		 228858
      Encryption
      		 6568
      Extended Instructions
      		 29851
      Floating Point Maths
      		 144068
      Integer Maths
      		 189330
      Physics
      		 3757
      Prime Numbers
      		 227
      Single Threaded
      		 1111
      String Sorting
      		 133903

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1853
      Database Operations
      		 20448
      Memory Latency
      		 70
      Memory Read Cached
      		 9486
      Memory Read Uncached
      		 9217
      Memory Write
      		 12579

      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

      INSTANCEvCPUsMEMORYGPUs
      r6g.medium 18 GiB0
      r6g.large 216 GiB0
      r6g.xlarge 432 GiB0
      r6g.2xlarge 864 GiB0
      r6g.4xlarge 16128 GiB0
      r6g.8xlarge 32256 GiB0
      r6g.16xlarge 64512 GiB0

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      r6g.12xlarge FAQs