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 0.208 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
2026-11-05T11:15:13.510781

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.208 USD/h 2.08 USD/h
Mumbai (IN) / ap-south-1
0.726033 USD/h 2.08 USD/h
Ohio (US) / us-east-2
0.622267 USD/h 3.2256 USD/h
Northern Virgina (US) / us-east-1
1.28522 USD/h 3.2256 USD/h
Oregon (US) / us-west-2
1.157725 USD/h 3.2256 USD/h
(MY) / ap-southeast-5
1.0561 USD/h 3.3075 USD/h
(TH) / ap-southeast-7
1.272433 USD/h 3.3075 USD/h
(MX) / mx-central-1
0.811167 USD/h 3.3869 USD/h
Stockholm (SE) / eu-north-1
0.755867 USD/h 3.424 USD/h
Taipei (TW) / ap-east-2
0.582667 USD/h 3.5021 USD/h
Calgary (CA) / ca-west-1
0.747567 USD/h 3.5328 USD/h
Quebec (CA) / ca-central-1
1.2943 USD/h 3.5328 USD/h
California (US) / us-west-1
0.97655 USD/h 3.584 USD/h
Aragón (ES) / eu-south-2
0.3962 USD/h 3.6096 USD/h
Dublin (IE) / eu-west-1
1.482967 USD/h 3.6096 USD/h
Paris (FR) / eu-west-3
1.3544 USD/h 3.776 USD/h
Milan (IT) / eu-south-1
0.714433 USD/h 3.7888 USD/h
London (GB) / eu-west-2
0.988633 USD/h 3.7888 USD/h
Tel Aviv (IL) / il-central-1
0.9528 USD/h 3.7901 USD/h
Melbourne (AU) / ap-southeast-4
0.770667 USD/h 3.8656 USD/h
Sydney (AU) / ap-southeast-2
1.206 USD/h 3.8656 USD/h
Jakarta (ID) / ap-southeast-3
0.3891 USD/h 3.8912 USD/h
Osaka (JP) / ap-northeast-3
1.0733 USD/h 3.8912 USD/h
Tokyo (JP) / ap-northeast-1
1.626467 USD/h 3.8912 USD/h
Frankfurt (DE) / eu-central-1
1.4513 USD/h 3.8912 USD/h
Singapore (SG) / ap-southeast-1
1.871533 USD/h 3.8912 USD/h
Seoul (KR) / ap-northeast-2
0.757025 USD/h 3.904 USD/h
United Arab Emirates / me-central-1
1.478 USD/h 3.9706 USD/h
(NZ) / ap-southeast-6
1.7525 USD/h 4.0589 USD/h
Zurich (CH) / eu-central-2
1.0052 USD/h 4.2803 USD/h
Hong Kong (HK) / ap-east-1
0.621933 USD/h 4.288 USD/h
Cape Town (ZA) / af-south-1
1.5134 USD/h 4.3008 USD/h
Sao Paulo (BR) / sa-east-1
0.531167 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
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    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

      2.3Score
      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 1,937,246 ops/sec 3.6 50.00% 50.00% +90.00%
      Redis RPS (pipeline=16, SET) 42,588,552 ops/sec 11,803,344 ops/sec 3.6 20.00% 20.00% +29.00%
      PassMark Memory Mark (composite) 1,856 2,409 0.79 10.00% 10.00% -2.30%
      Memory bandwidth (read, 16 MB ~ L3) 172,436 MB/sec 108,490 MB/sec 1.5 10.00% 10.00% +4.10%
      PassMark single-thread CPU 1,111 Mops/s 2,365 Mops/s 0.46 10.00% 10.00% -7.50%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 974

      Geekbench Multi-Core

      Score: 13,846

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 28,108
      Compression
      		 305,017
      Encryption
      		 8,757
      Extended Instructions
      		 39,744
      Floating Point Maths
      		 191,636
      Integer Maths
      		 252,655
      Physics
      		 4,067
      Prime Numbers
      		 249
      Single Threaded
      		 1,111
      String Sorting
      		 174,883

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,856
      Database Operations
      		 20,465
      Memory Latency
      		 69
      Memory Read Cached
      		 9,480
      Memory Read Uncached
      		 9,209
      Memory Write
      		 12,579

      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

      INSTANCEvCPUsMEMORYAccelerators
      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