logo

r8gn.12xlarge by Amazon Web Services

r8gn.12xlarge is a Memory optimized [AWS Graviton processors] [Network and EBS optimized] Gen8 12xlarge server offered by Amazon Web Services with 48 vCPUs, 384 GiB of memory and 0 GB of storage. The pricing starts at 1.2475 USD per hour.
48 vCPU
384 GiB Memory
Spare SCore
81819
(All-cores)
1706
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8gn.12xlarge
Description
Memory optimized [AWS Graviton processors] [Network and EBS optimized] Gen8 12xlarge
Family
r8gn
Hw Virt
Status
active
Observed At
2026-08-06T02:13:22.863903

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
1.6511 USD/h 4.3723 USD/h
Oregon (US) / us-west-2
1.7359 USD/h 4.3723 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
48
CPU Speed
2.8 GHz
CPU Architecture
arm64
CPU Manufacturer
AWS
CPU Family
ARMv9
CPU Model
Neoverse-V2
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
2 MiB
CPU L2 Cache Total
96 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
36 MiB
CPU Flags
fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, jscvt, fcma, lrcpc, dcpop, sha3, asimddp, sha512, sve, asimdfhm, dit, uscat, ilrcpc, flagm, sb, paca, pacg, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, rng, bti
Ecpus
48
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
384 GiB
Memory Amount Actual
378 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
      150 Gbps
      Network Speed Max
      150 Gbps
      Network Storage Speed Baseline
      30 Gbps
      Network Storage Speed Max
      30 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARM64 memory-optimized instance featuring forty-eight dedicated cores, high memory bandwidth, and one-hundred-fifty gigabits per second baseline network performance.

      Memory OptimizedStorage & Database

      Amazon Web Services r8gn.12xlarge is an ARM64 memory-optimized instance powered by a 48-core AWS Graviton ARMv9 Neoverse-V2 processor running at 2.8 GHz. It features 384.0 GB of RAM, yielding an 8.0 GB per core ratio, and operates on the AWS Nitro hypervisor. While it lacks local storage and dedicated GPUs, it provides a robust 150 Gbps baseline network bandwidth. Benchmark results place this instance in the top tier for memory bandwidth, database operations, and static web serving throughput. It also demonstrates strong multi-core performance in software compilation and Redis operations. This hardware profile is optimized for memory-intensive workloads, including large-scale databases, in-memory caching, and high-throughput network applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      3.55Score
      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) 9,532,155 ops/sec 1,910,660 ops/sec 4.99 50.00% 50.00% +123.00%
      Redis RPS (pipeline=16, SET) 52,141,131 ops/sec 11,608,287 ops/sec 4.49 20.00% 20.00% +35.00%
      PassMark Memory Mark (composite) 3,368 2,416 1.39 10.00% 10.00% +3.35%
      Memory bandwidth (read, 16 MB ~ L3) 475,028 MB/sec 107,896 MB/sec 4.4 10.00% 10.00% +16.00%
      PassMark single-thread CPU 1,943 Mops/s 2,364 Mops/s 0.822 10.00% 10.00% -1.94%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,862

      Geekbench Multi-Core

      Score: 23,591

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 35946
      Compression
      		 318693
      Encryption
      		 9037
      Extended Instructions
      		 43219
      Floating Point Maths
      		 290777
      Integer Maths
      		 250290
      Physics
      		 12492
      Prime Numbers
      		 539
      Single Threaded
      		 1943
      String Sorting
      		 220483

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3368
      Database Operations
      		 47475
      Memory Latency
      		 47
      Memory Read Cached
      		 21038
      Memory Read Uncached
      		 19696
      Memory Write
      		 21263

      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
      r8gn.medium 18 GiB0
      r8gn.large 216 GiB0
      r8gn.xlarge 432 GiB0
      r8gn.2xlarge 864 GiB0
      r8gn.4xlarge 16128 GiB0
      r8gn.8xlarge 32256 GiB0
      r8gn.16xlarge 64512 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      r8gn.12xlarge FAQs