r6g.16xlarge by Amazon Web Services

r6g.16xlarge is a Memory optimized [AWS Graviton processors] Gen6 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 0 GB of storage. The pricing starts at 0.2755 USD per hour.
64 vCPU
512 GiB Memory
Spare SCore
97,059
(All-cores)
1,519
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6g.16xlarge
Description
Memory optimized [AWS Graviton processors] Gen6 16xlarge
Family
r6g
Hw Virt
Status
active
Observed At
2026-09-21T05:40:01.944720

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.341533 USD/h 2.08 USD/h
Mumbai (IN) / ap-south-1
0.560733 USD/h 2.08 USD/h
Ohio (US) / us-east-2
0.594767 USD/h 3.2256 USD/h
Northern Virgina (US) / us-east-1
1.268 USD/h 3.2256 USD/h
Oregon (US) / us-west-2
1.3584 USD/h 3.2256 USD/h
(TH) / ap-southeast-7
0.587533 USD/h 3.3075 USD/h
(MY) / ap-southeast-5
1.0542 USD/h 3.3075 USD/h
(MX) / mx-central-1
0.8631 USD/h 3.3869 USD/h
Stockholm (SE) / eu-north-1
0.574833 USD/h 3.424 USD/h
Taipei (TW) / ap-east-2
0.3502 USD/h 3.5021 USD/h
Calgary (CA) / ca-west-1
0.641533 USD/h 3.5328 USD/h
Quebec (CA) / ca-central-1
1.2364 USD/h 3.5328 USD/h
California (US) / us-west-1
0.97025 USD/h 3.584 USD/h
Aragón (ES) / eu-south-2
0.6331 USD/h 3.6096 USD/h
Dublin (IE) / eu-west-1
1.4449 USD/h 3.6096 USD/h
Paris (FR) / eu-west-3
1.087567 USD/h 3.776 USD/h
Milan (IT) / eu-south-1
0.7952 USD/h 3.7888 USD/h
London (GB) / eu-west-2
1.180967 USD/h 3.7888 USD/h
Tel Aviv (IL) / il-central-1
0.890567 USD/h 3.7901 USD/h
Melbourne (AU) / ap-southeast-4
0.8135 USD/h 3.8656 USD/h
Sydney (AU) / ap-southeast-2
1.338533 USD/h 3.8656 USD/h
Jakarta (ID) / ap-southeast-3
0.3891 USD/h 3.8912 USD/h
Frankfurt (DE) / eu-central-1
1.268367 USD/h 3.8912 USD/h
Osaka (JP) / ap-northeast-3
1.226067 USD/h 3.8912 USD/h
Tokyo (JP) / ap-northeast-1
1.476367 USD/h 3.8912 USD/h
Singapore (SG) / ap-southeast-1
1.8558 USD/h 3.8912 USD/h
Seoul (KR) / ap-northeast-2
0.93955 USD/h 3.904 USD/h
United Arab Emirates / me-central-1
1.6255 USD/h 3.9706 USD/h
(NZ) / ap-southeast-6
1.786833 USD/h 4.0589 USD/h
Zurich (CH) / eu-central-2
1.509067 USD/h 4.2803 USD/h
Hong Kong (HK) / ap-east-1
0.680367 USD/h 4.288 USD/h
Cape Town (ZA) / af-south-1
0.9668 USD/h 4.3008 USD/h
Sao Paulo (BR) / sa-east-1
0.572267 USD/h 5.1456 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
64
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
4 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
64 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
63.9
Scalability
99.84

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
507 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
      25 Gbps
      Network Speed Max
      25 Gbps
      Network Storage Speed Baseline
      19 Gbps
      Network Storage Speed Max
      19 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARM64 memory-optimized instance featuring high memory density and strong multi-core throughput for caching and database workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r6g.16xlarge is an ARM64 memory-optimized instance powered by 64 dedicated AWS Graviton2 physical cores running at 2.5 GHz. It features 512.0 GB of system memory, yielding 8.0 GB of RAM per core, and operates on the AWS Nitro hypervisor with 25 Gbps baseline network bandwidth. The instance lacks local storage and dedicated GPUs. Benchmarks indicate strong multi-core CPU execution, high cached memory read bandwidth, and excellent Redis SET and static web serving throughput. Conversely, single-core performance and single-threaded compression tasks are relatively weak. Lacking x86-specific instruction sets like AVX, this instance offers a cost-efficient, high-density memory profile for multi-threaded, memory-intensive applications. It is suited for in-memory databases, caching layers, software compilation, and data processing workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.32Score
      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) 6,912,664 ops/sec 1,919,696 ops/sec 3.6 50.00% 50.00% +89.70%
      Redis RPS (pipeline=16, SET) 42,588,552 ops/sec 11,736,081 ops/sec 3.63 20.00% 20.00% +29.40%
      PassMark Memory Mark (composite) 1,856 2,418 0.768 10.00% 10.00% -2.61%
      Memory bandwidth (read, 16 MB ~ L3) 172,436 MB/sec 108,260 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: 974

      Geekbench Multi-Core

      Score: 13,846

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 28108
      Compression
      		 305017
      Encryption
      		 8757
      Extended Instructions
      		 39744
      Floating Point Maths
      		 191636
      Integer Maths
      		 252655
      Physics
      		 4067
      Prime Numbers
      		 249
      Single Threaded
      		 1111
      String Sorting
      		 174883

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1856
      Database Operations
      		 20465
      Memory Latency
      		 69
      Memory Read Cached
      		 9480
      Memory Read Uncached
      		 9209
      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.12xlarge 48384 GiB0

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      r6g.16xlarge FAQs