r8g.4xlarge by Amazon Web Services

r8g.4xlarge is a Memory optimized [AWS Graviton processors] Gen8 4xlarge server offered by Amazon Web Services with 16 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.1137 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
27,279
(All-cores)
1,707
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8g.4xlarge
Description
Memory optimized [AWS Graviton processors] Gen8 4xlarge
Family
r8g
Hw Virt
Status
active
Observed At
2026-09-16T23:59:11.003541

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.120667 USD/h 0.6606 USD/h
Mumbai (IN) / ap-south-1
0.2779 USD/h 0.6606 USD/h
Northern Virgina (US) / us-east-1
0.33014 USD/h 0.9426 USD/h
Ohio (US) / us-east-2
0.683333 USD/h 0.9426 USD/h
Oregon (US) / us-west-2
0.4682 USD/h 0.9426 USD/h
(TH) / ap-southeast-7
0.354767 USD/h 0.9664 USD/h
(MY) / ap-southeast-5
0.301133 USD/h 0.9664 USD/h
(MX) / mx-central-1
0.4588 USD/h 0.9896 USD/h
Stockholm (SE) / eu-north-1
0.135833 USD/h 1.0023 USD/h
Calgary (CA) / ca-west-1
0.2193 USD/h 1.0323 USD/h
Quebec (CA) / ca-central-1
0.374967 USD/h 1.0323 USD/h
California (US) / us-west-1
0.37465 USD/h 1.0472 USD/h
Aragón (ES) / eu-south-2
0.130167 USD/h 1.0542 USD/h
Dublin (IE) / eu-west-1
0.546633 USD/h 1.0547 USD/h
Milan (IT) / eu-south-1
0.2104 USD/h 1.1045 USD/h
London (GB) / eu-west-2
0.23395 USD/h 1.107 USD/h
Paris (FR) / eu-west-3
0.373467 USD/h 1.107 USD/h
Melbourne (AU) / ap-southeast-4
0.183633 USD/h 1.1296 USD/h
Sydney (AU) / ap-southeast-2
0.377267 USD/h 1.1296 USD/h
Jakarta (ID) / ap-southeast-3
0.119933 USD/h 1.137 USD/h
Osaka (JP) / ap-northeast-3
0.3362 USD/h 1.137 USD/h
Tokyo (JP) / ap-northeast-1
0.441533 USD/h 1.137 USD/h
Seoul (KR) / ap-northeast-2
0.499267 USD/h 1.137 USD/h
Frankfurt (DE) / eu-central-1
0.460433 USD/h 1.137 USD/h
Singapore (SG) / ap-southeast-1
0.481 USD/h 1.137 USD/h
United Arab Emirates / me-central-1
0.4749 USD/h 1.1602 USD/h
(NZ) / ap-southeast-6
0.365567 USD/h 1.1861 USD/h
Hong Kong (HK) / ap-east-1
0.204733 USD/h 1.2496 USD/h
Zurich (CH) / eu-central-2
0.220433 USD/h 1.2507 USD/h
Cape Town (ZA) / af-south-1
0.279867 USD/h 1.2566 USD/h
Sao Paulo (BR) / sa-east-1
0.531967 USD/h 1.4998 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
2.8 GHz
CPU Architecture
arm64
CPU Manufacturer
AWS
CPU Model
Neoverse-V2
CPU L1D Cache
64 KiB
CPU L1D Cache Total
1 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
32 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, ssbs, sb, paca, pacg, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, rng, bti
Ecpus
16
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
126 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
      7.5 Gbps
      Network Speed Max
      15 Gbps
      Network Storage Speed Baseline
      5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An arm64 memory-optimized instance featuring dedicated physical cores and top-tier memory bandwidth for demanding database and caching workloads.

      Memory OptimizedGeneral Purpose

      The Amazon Web Services r8g.4xlarge is an arm64 memory-optimized instance powered by a 16-core AWS Graviton Neoverse-V2 processor running at 2.8 GHz. It features 128.0 GB of RAM, providing a high 8.0 GB per core ratio, with no local storage or GPU accelerators. Operating on the Nitro hypervisor, it delivers a baseline network bandwidth of 8 Gbps. Benchmark data highlights top-tier memory performance, with a Passmark memory score in the top 10% and strong uncached large-block read and write speeds of 317.2 GB/sec and 130.27 GB/sec, respectively. While CPU-bound and cryptographic tasks perform in the average range, database operations show strong results. The instance is highly efficient for memory-intensive workloads, making it an appropriate fit for database hosting, caching layers, and memory-bound data processing applications that benefit from dedicated physical cores without hyperthreading.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.81Score
      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) 3,745,375 ops/sec 1,919,696 ops/sec 1.95 50.00% 50.00% +39.60%
      Redis RPS (pipeline=16, SET) 22,741,692 ops/sec 11,736,081 ops/sec 1.94 20.00% 20.00% +14.20%
      PassMark Memory Mark (composite) 3,222 2,418 1.33 10.00% 10.00% +2.89%
      Memory bandwidth (read, 16 MB ~ L3) 355,128 MB/sec 108,260 MB/sec 3.28 10.00% 10.00% +12.60%
      PassMark single-thread CPU 1,943 Mops/s 2,365 Mops/s 0.822 10.00% 10.00% -1.94%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,886

      Geekbench Multi-Core

      Score: 15,872

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 14542
      Compression
      		 106469
      Encryption
      		 3026
      Extended Instructions
      		 14714
      Floating Point Maths
      		 96999
      Integer Maths
      		 83467
      Physics
      		 4587
      Prime Numbers
      		 210
      Single Threaded
      		 1943
      String Sorting
      		 74036

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3222
      Database Operations
      		 23912
      Memory Latency
      		 50
      Memory Read Cached
      		 21083
      Memory Read Uncached
      		 19187
      Memory Write
      		 21185

      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
      r8g.medium 18 GiB0
      r8g.large 216 GiB0
      r8g.xlarge 432 GiB0
      r8g.2xlarge 864 GiB0
      r8g.8xlarge 32256 GiB0
      r8g.12xlarge 48384 GiB0
      r8g.16xlarge 64512 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      r8g.4xlarge FAQs