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r8gn.8xlarge by Amazon Web Services

r8gn.8xlarge is a Memory optimized [AWS Graviton processors] [Network and EBS optimized] Gen8 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 1.0534 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
54591
(All-cores)
1707
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8gn.8xlarge
Description
Memory optimized [AWS Graviton processors] [Network and EBS optimized] Gen8 8xlarge
Family
r8gn
Hw Virt
Status
active
Observed At
2026-08-06T11:28:21.554836

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
1.229133 USD/h 2.9149 USD/h
Northern Virgina (US) / us-east-1
1.490575 USD/h 2.9149 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
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
2 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
2 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
64 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
32
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
252 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
      100 Gbps
      Network Speed Max
      100 Gbps
      Network Storage Speed Baseline
      20 Gbps
      Network Storage Speed Max
      20 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARM64 memory-optimized instance featuring dedicated physical cores, high-bandwidth networking, and top-tier memory performance for database and caching workloads.

      Memory OptimizedStorage & Database

      The Amazon Web Services r8gn.8xlarge is an ARM64 memory-optimized server instance built on the AWS Nitro hypervisor. Powered by an AWS Graviton ARMv9 Neoverse-V2 processor, it delivers 32 dedicated physical cores operating at 2.8 GHz and 256.0 GB of RAM, providing a high memory-to-core ratio of 8.0 GB. The instance features a baseline network bandwidth of 100 Gbps and lacks local storage. In benchmark evaluations, the r8gn.8xlarge demonstrates top-tier memory bandwidth, with uncached reads at 414.89 GB/sec and writes at 186.46 GB/sec, alongside top-tier database operations and multi-core Geekbench scores. However, single-core CPU performance and certain LLM inference tasks, such as small-model text generation, show average to poor results. This hardware profile is suited for memory-intensive databases, high-throughput caching systems, and network-optimized enterprise workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.6Score
      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) 6,281,142 ops/sec 1,910,660 ops/sec 3.29 50.00% 50.00% +81.40%
      Redis RPS (pipeline=16, SET) 34,773,568 ops/sec 11,608,287 ops/sec 3 20.00% 20.00% +24.60%
      PassMark Memory Mark (composite) 3,396 2,416 1.41 10.00% 10.00% +3.50%
      Memory bandwidth (read, 16 MB ~ L3) 387,646 MB/sec 107,896 MB/sec 3.59 10.00% 10.00% +13.60%
      PassMark single-thread CPU 1,944 Mops/s 2,364 Mops/s 0.822 10.00% 10.00% -1.94%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,797

      Geekbench Multi-Core

      Score: 21,290

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 26314
      Compression
      		 212531
      Encryption
      		 6027
      Extended Instructions
      		 29485
      Floating Point Maths
      		 193990
      Integer Maths
      		 166998
      Physics
      		 9128
      Prime Numbers
      		 401
      Single Threaded
      		 1944
      String Sorting
      		 147817

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3396
      Database Operations
      		 47351
      Memory Latency
      		 46
      Memory Read Cached
      		 21055
      Memory Read Uncached
      		 19838
      Memory Write
      		 21163

      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.12xlarge 48384 GiB0
      r8gn.16xlarge 64512 GiB0

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      r8gn.8xlarge FAQs