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 0.4832 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
2026-10-24T18:44:21.539282

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
1.1731 USD/h 4.608 USD/h
Ohio (US) / us-east-2
1.466667 USD/h 4.608 USD/h
Oregon (US) / us-west-2
2.3066 USD/h 4.608 USD/h
Hyderabad (IN) / ap-south-2
0.4832 USD/h 4.832 USD/h
Mumbai (IN) / ap-south-1
1.371 USD/h 4.832 USD/h
Stockholm (SE) / eu-north-1
1.082767 USD/h 4.864 USD/h
Quebec (CA) / ca-central-1
1.915233 USD/h 5.056 USD/h
Aragón (ES) / eu-south-2
1.559033 USD/h 5.12 USD/h
Dublin (IE) / eu-west-1
2.3464 USD/h 5.12 USD/h
California (US) / us-west-1
1.36505 USD/h 5.184 USD/h
Milan (IT) / eu-south-1
1.250267 USD/h 5.376 USD/h
Tel Aviv (IL) / il-central-1
1.355333 USD/h 5.376 USD/h
Paris (FR) / eu-west-3
1.299367 USD/h 5.408 USD/h
London (GB) / eu-west-2
2.105433 USD/h 5.408 USD/h
Seoul (KR) / ap-northeast-2
1.312625 USD/h 5.536 USD/h
Frankfurt (DE) / eu-central-1
1.961033 USD/h 5.536 USD/h
Jakarta (ID) / ap-southeast-3
0.5568 USD/h 5.568 USD/h
Melbourne (AU) / ap-southeast-4
0.846867 USD/h 5.568 USD/h
Tokyo (JP) / ap-northeast-1
1.401533 USD/h 5.568 USD/h
Osaka (JP) / ap-northeast-3
1.5096 USD/h 5.568 USD/h
Sydney (AU) / ap-southeast-2
2.002133 USD/h 5.568 USD/h
Singapore (SG) / ap-southeast-1
2.000133 USD/h 5.568 USD/h
Hong Kong (HK) / ap-east-1
0.635367 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
1.190767 USD/h 6.08 USD/h
Zurich (CH) / eu-central-2
1.178933 USD/h 6.09 USD/h
Sao Paulo (BR) / sa-east-1
4.136 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
65.94

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
512 GiB
Memory Generation
DDR4
Memory Speed
3200 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    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 combining high-capacity DDR4 RAM with fast local NVMe SSD storage for memory-intensive database and caching workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r5d.16xlarge is a memory-optimized instance featuring 64 vCPUs and 32 physical Intel Xeon 8259CL cores running at 3.1 GHz on the x86_64 architecture. It is equipped with 512.0 GB of DDR4 RAM and 2400 GB of local NVMe SSD storage, running on the Nitro hypervisor with a 20 Gbps baseline network speed. Performance benchmarks highlight strong large-block memory bandwidth, with read speeds of 209.41 GB/sec and write speeds of 92.36 GB/sec. However, single-core compute performance is weak, as shown by lower single-threaded stress-ng and Geekbench scores. This hardware profile offers qualitative cost efficiency for memory-intensive applications requiring high-capacity local storage. The instance is suited for database operations, caching layers, and memory-heavy data processing workloads that do not require high single-threaded CPU performance.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    2.1Score
    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 1,919,289 ops/sec 2.8 50.00% 50.00% +67.00%
    Redis RPS (pipeline=16, SET) 31,291,973 ops/sec 11,728,058 ops/sec 2.6 20.00% 20.00% +21.00%
    PassMark Memory Mark (composite) 2,604 2,416 1.1 10.00% 10.00% +0.96%
    Memory bandwidth (read, 16 MB ~ L3) 220,550 MB/sec 108,466 MB/sec 2 10.00% 10.00% +7.20%
    PassMark single-thread CPU 1,822 Mops/s 2,365 Mops/s 0.75 10.00% 10.00% -2.80%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,057

    Geekbench Multi-Core

    Score: 11,070

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 42,683
    Compression
    		 790,548
    Encryption
    		 24,908
    Extended Instructions
    		 49,439
    Floating Point Maths
    		 97,263
    Integer Maths
    		 181,536
    Physics
    		 4,655
    Prime Numbers
    		 261
    Single Threaded
    		 1,822
    String Sorting
    		 92,345

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,604
    Database Operations
    		 21,185
    Memory Latency
    		 54
    Memory Read Cached
    		 21,930
    Memory Read Uncached
    		 10,128
    Memory Write
    		 9,889

    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
    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