r5ad.24xlarge by Amazon Web Services

r5ad.24xlarge is a Memory optimized [AMD processors] [Instance store volumes] Gen5 24xlarge server offered by Amazon Web Services with 96 vCPUs, 768 GiB of memory and 3.6 TB of storage. The pricing starts at 0.6786 USD per hour.
96 vCPU
768 GiB Memory
3.6 TB Storage
Spare SCore
28,298
(All-cores)
591
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5ad.24xlarge
Description
Memory optimized [AMD processors] [Instance store volumes] Gen5 24xlarge
Family
r5ad
Hw Virt
Status
active
Observed At
2026-09-10T22:38:15.556382

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
1.412633 USD/h 3.986 USD/h
Ohio (US) / us-east-2
1.7659 USD/h 6.288 USD/h
Northern Virgina (US) / us-east-1
2.22336 USD/h 6.288 USD/h
Oregon (US) / us-west-2
3.290825 USD/h 6.288 USD/h
Quebec (CA) / ca-central-1
2.24195 USD/h 6.912 USD/h
Dublin (IE) / eu-west-1
2.907233 USD/h 7.008 USD/h
California (US) / us-west-1
1.6723 USD/h 7.104 USD/h
Paris (FR) / eu-west-3
1.290433 USD/h 7.344 USD/h
London (GB) / eu-west-2
2.6871 USD/h 7.392 USD/h
Frankfurt (DE) / eu-central-1
2.633267 USD/h 7.584 USD/h
Seoul (KR) / ap-northeast-2
2.96 USD/h 7.584 USD/h
Tokyo (JP) / ap-northeast-1
1.956 USD/h 7.632 USD/h
Singapore (SG) / ap-southeast-1
3.404 USD/h 7.632 USD/h
Sydney (AU) / ap-southeast-2
4.269833 USD/h 7.632 USD/h
Sao Paulo (BR) / sa-east-1
1.22185 USD/h 9.984 USD/h

Processor

vCPUs
96
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
48
CPU Speed
2.2 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7571
CPU L1D Cache
32 KiB
CPU L1D Cache Total
2 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
3 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
24 MiB
CPU L3 Cache
8 MiB
CPU L3 Cache Total
96 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
47.9
Scalability
99.79

System Resources and Accelerators

MEMORY
Memory Amount
768 GiB
Memory Amount Actual
768 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
    3600 GB
    Storage Type
    nvme ssd
    Storages
    • 900 GB nvme ssd
    • 900 GB nvme ssd
    • 900 GB nvme ssd
    • 900 GB nvme ssd
    NETWORK
    Network Speed Baseline
    20 Gbps
    Network Speed Max
    20 Gbps
    Network Storage Speed Baseline
    13.57 Gbps
    Network Storage Speed Max
    13.57 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 storage for parallelized, data-intensive workloads.

    Memory OptimizedStorage & Database

    The Amazon Web Services r5ad.24xlarge is a memory-optimized instance featuring 96 vCPUs powered by AMD EPYC 7571 processors running at 2.2 GHz. Built on the Nitro hypervisor, it delivers 768.0 GB of DDR4 memory and 3600 GB of local NVMe SSD storage, supported by a 20 Gbps baseline network. Performance benchmarks show a trade-off: single-core compute and single-threaded compression tasks are weak, ranking in the bottom 10%, whereas multi-core capabilities and database operations perform at average levels. Notably, cached small-block memory bandwidth and CPU encryption benchmarks are strong, placing in the top 25%. This hardware profile makes the r5ad.24xlarge highly cost-efficient for memory-intensive, parallelized workloads that require substantial local storage, such as large databases, in-memory caches, and multi-threaded data processing, rather than single-threaded compute-bound tasks.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.84Score
    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) 4,602,996 ops/sec 1,917,397 ops/sec 2.4 50.00% 50.00% +54.90%
    Redis RPS (pipeline=16, SET) 30,205,488 ops/sec 11,681,410 ops/sec 2.59 20.00% 20.00% +21.00%
    PassMark Memory Mark (composite) 2,202 2,418 0.911 10.00% 10.00% -0.93%
    Memory bandwidth (read, 16 MB ~ L3) 165,758 MB/sec 108,140 MB/sec 1.53 10.00% 10.00% +4.34%
    PassMark single-thread CPU 1,442 Mops/s 2,365 Mops/s 0.61 10.00% 10.00% -4.82%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 726

    Geekbench Multi-Core

    Score: 7,068

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 46911
    Compression
    		 1058703
    Encryption
    		 77518
    Extended Instructions
    		 39544
    Floating Point Maths
    		 130852
    Integer Maths
    		 248434
    Physics
    		 5025
    Prime Numbers
    		 217
    Single Threaded
    		 1442
    String Sorting
    		 139018

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2202
    Database Operations
    		 15450
    Memory Latency
    		 63
    Memory Read Cached
    		 14941
    Memory Read Uncached
    		 11443
    Memory Write
    		 8113

    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.8xlarge 32256 GiB0
    r5ad.12xlarge 48384 GiB0
    r5ad.16xlarge 64512 GiB0

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    r5ad.24xlarge FAQs