r5d.16xlarge by Amazon Web Services

r5d.16xlarge is a Memory optimized [Instance store volumes] Gen5 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 2.4 TB of storage. The pricing starts at 0.512 USD per hour.
64 vCPU
512 GiB Memory
2.4 TB Storage
Spare SCore
54,168
(All-cores)
1,285
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5d.16xlarge
Description
Memory optimized [Instance store volumes] Gen5 16xlarge
Family
r5d
Hw Virt
Status
active
Observed At
2026-09-09T15:22:00.971912

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
1.249 USD/h 4.608 USD/h
Northern Virgina (US) / us-east-1
1.53462 USD/h 4.608 USD/h
Oregon (US) / us-west-2
2.173 USD/h 4.608 USD/h
Mumbai (IN) / ap-south-1
1.1403 USD/h 4.832 USD/h
Hyderabad (IN) / ap-south-2
1.110033 USD/h 4.832 USD/h
Stockholm (SE) / eu-north-1
1.148767 USD/h 4.864 USD/h
Quebec (CA) / ca-central-1
1.5202 USD/h 5.056 USD/h
Aragón (ES) / eu-south-2
0.512 USD/h 5.12 USD/h
Dublin (IE) / eu-west-1
2.3326 USD/h 5.12 USD/h
California (US) / us-west-1
2.1189 USD/h 5.184 USD/h
Tel Aviv (IL) / il-central-1
1.027867 USD/h 5.376 USD/h
Milan (IT) / eu-south-1
1.0182 USD/h 5.376 USD/h
Paris (FR) / eu-west-3
1.5065 USD/h 5.408 USD/h
London (GB) / eu-west-2
1.810333 USD/h 5.408 USD/h
Seoul (KR) / ap-northeast-2
1.26455 USD/h 5.536 USD/h
Frankfurt (DE) / eu-central-1
1.915133 USD/h 5.536 USD/h
Jakarta (ID) / ap-southeast-3
0.622433 USD/h 5.568 USD/h
Melbourne (AU) / ap-southeast-4
0.975133 USD/h 5.568 USD/h
Tokyo (JP) / ap-northeast-1
1.606067 USD/h 5.568 USD/h
Osaka (JP) / ap-northeast-3
1.590133 USD/h 5.568 USD/h
Sydney (AU) / ap-southeast-2
2.101533 USD/h 5.568 USD/h
Singapore (SG) / ap-southeast-1
2.170033 USD/h 5.568 USD/h
Hong Kong (HK) / ap-east-1
0.770333 USD/h 5.6 USD/h
United Arab Emirates / me-central-1
2.3056 USD/h 5.632 USD/h
Cape Town (ZA) / af-south-1
1.2984 USD/h 6.08 USD/h
Zurich (CH) / eu-central-2
1.372633 USD/h 6.09 USD/h
Sao Paulo (BR) / sa-east-1
4.899533 USD/h 7.296 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
3.1 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8259CL
CPU L1D Cache
32 KiB
CPU L1D Cache Total
1 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
32 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
72 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, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, mpx, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, ida, arat, pku, ospke
Ecpus
42.2
Scalability
131.88

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
512 GiB
Memory Generation
DDR4
Memory Speed
3200 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    2400 GB
    Storage Type
    nvme ssd
    Storages
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    NETWORK
    Network Speed Baseline
    20 Gbps
    Network Speed Max
    20 Gbps
    Network Storage Speed Baseline
    13.6 Gbps
    Network Storage Speed Max
    13.6 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized instance featuring dedicated Intel Xeon processors, high-capacity local NVMe storage, and strong large-block memory bandwidth.

    Memory OptimizedStorage & Database

    Amazon Web Services r5d.16xlarge is a memory-optimized instance featuring 64 vCPUs, 32 physical Intel Xeon 8259CL cores, and 512.0 GB of DDR4 RAM. Built on the Nitro hypervisor, it includes 2400 GB of local NVMe SSD storage and 20 Gbps baseline network bandwidth. Benchmark data indicates weak single-core CPU performance, but strong memory bandwidth for large uncached blocks and average multi-core capabilities. The instance provides a high memory-to-vCPU ratio and built-in local storage, making it qualitatively cost-efficient for workloads that require high memory capacity without needing top-tier single-threaded compute. It is suited for database operations, Redis caching, and memory-intensive data processing.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    2.15Score
    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) 5,356,372 ops/sec 1,917,397 ops/sec 2.79 50.00% 50.00% +67.00%
    Redis RPS (pipeline=16, SET) 31,291,973 ops/sec 11,681,410 ops/sec 2.68 20.00% 20.00% +21.80%
    PassMark Memory Mark (composite) 2,604 2,418 1.08 10.00% 10.00% +0.77%
    Memory bandwidth (read, 16 MB ~ L3) 220,550 MB/sec 108,140 MB/sec 2.04 10.00% 10.00% +7.39%
    PassMark single-thread CPU 1,822 Mops/s 2,365 Mops/s 0.77 10.00% 10.00% -2.58%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,057

    Geekbench Multi-Core

    Score: 11,070

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 42683
    Compression
    		 790548
    Encryption
    		 24908
    Extended Instructions
    		 49439
    Floating Point Maths
    		 97263
    Integer Maths
    		 181536
    Physics
    		 4655
    Prime Numbers
    		 261
    Single Threaded
    		 1822
    String Sorting
    		 92345

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2604
    Database Operations
    		 21185
    Memory Latency
    		 54
    Memory Read Cached
    		 21930
    Memory Read Uncached
    		 10128
    Memory Write
    		 9889

    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
    r5d.large 216 GiB0
    r5d.xlarge 432 GiB0
    r5d.2xlarge 864 GiB0
    r5d.4xlarge 16128 GiB0
    r5d.8xlarge 32256 GiB0
    r5d.12xlarge 48384 GiB0
    r5d.24xlarge 96768 GiB0

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    r5d.16xlarge FAQs