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r8gb.16xlarge by Amazon Web Services

r8gb.16xlarge is a Memory optimized [AWS Graviton processors] Gen8 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 0 GB of storage. The pricing starts at 1.637 USD per hour.
64 vCPU
512 GiB Memory
Spare SCore
109120
(All-cores)
1706
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8gb.16xlarge
Description
Memory optimized [AWS Graviton processors] Gen8 16xlarge
Family
r8gb
Hw Virt
Status
active
Observed At
2026-07-27T21:14:15.418362

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
1.7173 USD/h 5.8298 USD/h
Northern Virgina (US) / us-east-1
2.807 USD/h 5.8298 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
64
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
4 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
128 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
64
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
504 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
      133.333 Gbps
      Network Speed Max
      133.333 Gbps
      Network Storage Speed Baseline
      100 Gbps
      Network Storage Speed Max
      100 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARM64 memory-optimized server featuring sixty-four dedicated cores and top-tier memory bandwidth for demanding database and caching workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r8gb.16xlarge is a memory-optimized ARM64 server powered by 64 dedicated AWS Graviton (Neoverse-V2) physical cores running at 2.8 GHz. It features 512.0 GB of system memory, providing a high 8.0 GB per core ratio, and delivers 133 Gbps of baseline network bandwidth. Operating on the Nitro hypervisor, this instance lacks local storage and GPU accelerators. Benchmarks show top-tier memory bandwidth, Redis SET operations, and database performance, alongside strong multi-core compute capabilities. The server offers high resource density and memory throughput, making it an efficient choice for memory-bound workloads. It is highly suited for in-memory databases, large-scale caching, and data analytics.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      4.46Score
      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) 12,783,788 ops/sec 1,896,415 ops/sec 6.74 50.00% 50.00% +160.00%
      Redis RPS (pipeline=16, SET) 70,720,204 ops/sec 11,539,523 ops/sec 6.13 20.00% 20.00% +43.70%
      PassMark Memory Mark (composite) 3,424 2,411 1.42 10.00% 10.00% +3.57%
      Memory bandwidth (read, 16 MB ~ L3) 552,770 MB/sec 107,368 MB/sec 5.15 10.00% 10.00% +17.80%
      PassMark single-thread CPU 1,944 Mops/s 2,363 Mops/s 0.823 10.00% 10.00% -1.93%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,888

      Geekbench Multi-Core

      Score: 25,669

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 44142
      Compression
      		 424989
      Encryption
      		 12059
      Extended Instructions
      		 56369
      Floating Point Maths
      		 387812
      Integer Maths
      		 333762
      Physics
      		 16931
      Prime Numbers
      		 712
      Single Threaded
      		 1944
      String Sorting
      		 293472

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3424
      Database Operations
      		 47949
      Memory Latency
      		 45
      Memory Read Cached
      		 20524
      Memory Read Uncached
      		 20330
      Memory Write
      		 21292

      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
      r8gb.medium 18 GiB0
      r8gb.large 216 GiB0
      r8gb.xlarge 432 GiB0
      r8gb.2xlarge 864 GiB0
      r8gb.4xlarge 16128 GiB0
      r8gb.8xlarge 32256 GiB0
      r8gb.12xlarge 48384 GiB0

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      r8gb.16xlarge FAQs