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r5ad.8xlarge by Amazon Web Services

r5ad.8xlarge is a Memory optimized [AMD processors] [Instance store volumes] Gen5 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 1.2 TB of storage. The pricing starts at 0.2905 USD per hour.
32 vCPU
256 GiB Memory
1.2 TB Storage
Spare SCore
9444
(All-cores)
591
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5ad.8xlarge
Description
Memory optimized [AMD processors] [Instance store volumes] Gen5 8xlarge
Family
r5ad
Hw Virt
Status
active
Observed At
2026-08-18T09:25:28.564538

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.3293 USD/h 1.329 USD/h
Ohio (US) / us-east-2
0.608 USD/h 2.096 USD/h
Northern Virgina (US) / us-east-1
0.98318 USD/h 2.096 USD/h
Oregon (US) / us-west-2
1.239525 USD/h 2.096 USD/h
Quebec (CA) / ca-central-1
0.7336 USD/h 2.304 USD/h
Dublin (IE) / eu-west-1
1.235933 USD/h 2.336 USD/h
California (US) / us-west-1
0.95745 USD/h 2.368 USD/h
Paris (FR) / eu-west-3
0.904667 USD/h 2.448 USD/h
London (GB) / eu-west-2
0.886 USD/h 2.464 USD/h
Seoul (KR) / ap-northeast-2
0.9651 USD/h 2.528 USD/h
Frankfurt (DE) / eu-central-1
1.2121 USD/h 2.528 USD/h
Tokyo (JP) / ap-northeast-1
0.82555 USD/h 2.544 USD/h
Singapore (SG) / ap-southeast-1
1.572233 USD/h 2.544 USD/h
Sydney (AU) / ap-southeast-2
1.186733 USD/h 2.544 USD/h
Sao Paulo (BR) / sa-east-1
0.77875 USD/h 3.328 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7571
CPU L1D Cache
32 KiB
CPU L1D Cache Total
512 KiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
8 MiB
CPU L3 Cache
8 MiB
CPU L3 Cache Total
32 MiB
CPU Flags
fpu, vme, de, pse, tsc, msr, pae, mce, cx8, apic, sep, mtrr, pge, mca, cmov, pat, pse36, clflush, mmx, fxsr, sse, sse2, ht, syscall, nx, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, nonstop_tsc, cpuid, extd_apicid, amd_dcm, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, arat, npt, nrip_save
Ecpus
16
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 GiB
Memory Generation
DDR4
Memory Speed
2667 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    1200 GB
    Storage Type
    nvme ssd
    Storages
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    NETWORK
    Network Speed Baseline
    7.5 Gbps
    Network Speed Max
    10 Gbps
    Network Storage Speed Baseline
    4.75 Gbps
    Network Storage Speed Max
    4.75 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized instance combining high-capacity DDR4 RAM with fast local NVMe SSD storage for data-intensive and caching workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r5ad.8xlarge is a memory-optimized instance featuring 32 vCPUs and 16 physical cores powered by an AMD EPYC 7571 processor running at 2.5 GHz. Built on the Nitro hypervisor, it includes 256.0 GB of DDR4 memory and a bundled 1200 GB local NVMe SSD instance store. While single-core CPU benchmarks and single-threaded compression tasks perform in the bottom 10% tier, multi-core execution, memory bandwidth, and database operations achieve average performance levels. With a baseline network bandwidth of 8 Gbps, this instance is designed for memory-intensive workloads that benefit from high-capacity local storage. It is well-suited for in-memory databases, caching layers, and distributed data processing tasks where memory capacity and local storage speed are prioritized over raw single-threaded compute power.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.821Score
    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) 1,697,611 ops/sec 1,910,660 ops/sec 0.888 50.00% 50.00% -5.77%
    Redis RPS (pipeline=16, SET) 11,238,278 ops/sec 11,608,287 ops/sec 0.968 20.00% 20.00% -0.65%
    PassMark Memory Mark (composite) 2,125 2,416 0.88 10.00% 10.00% -1.27%
    Memory bandwidth (read, 16 MB ~ L3) 55,797 MB/sec 107,896 MB/sec 0.517 10.00% 10.00% -6.38%
    PassMark single-thread CPU 1,399 Mops/s 2,364 Mops/s 0.592 10.00% 10.00% -5.11%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 717

    Geekbench Multi-Core

    Score: 6,127

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 22217
    Compression
    		 353177
    Encryption
    		 25944
    Extended Instructions
    		 13149
    Floating Point Maths
    		 43691
    Integer Maths
    		 82835
    Physics
    		 1734
    Prime Numbers
    		 73
    Single Threaded
    		 1399
    String Sorting
    		 47489

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2125
    Database Operations
    		 7448
    Memory Latency
    		 62
    Memory Read Cached
    		 14934
    Memory Read Uncached
    		 11502
    Memory Write
    		 8200

    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
    r5ad.large 216 GiB0
    r5ad.xlarge 432 GiB0
    r5ad.2xlarge 864 GiB0
    r5ad.4xlarge 16128 GiB0
    r5ad.12xlarge 48384 GiB0
    r5ad.16xlarge 64512 GiB0
    r5ad.24xlarge 96768 GiB0

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    r5ad.8xlarge FAQs