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r5dn.12xlarge by Amazon Web Services

r5dn.12xlarge is a Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 12xlarge server offered by Amazon Web Services with 48 vCPUs, 384 GiB of memory and 1.8 TB of storage. The pricing starts at 0.5842 USD per hour.
48 vCPU
384 GiB Memory
1.8 TB Storage
Spare SCore
40658
(All-cores)
1383
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5dn.12xlarge
Description
Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 12xlarge
Family
r5dn
Hw Virt
Status
active
Observed At
2026-07-29T19:07:27.168411

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
1.3228 USD/h 4.008 USD/h
Northern Virgina (US) / us-east-1
1.57716 USD/h 4.008 USD/h
Oregon (US) / us-west-2
1.9831 USD/h 4.008 USD/h
Stockholm (SE) / eu-north-1
0.7603 USD/h 4.248 USD/h
Dublin (IE) / eu-west-1
2.0035 USD/h 4.464 USD/h
Milan (IT) / eu-south-1
0.721767 USD/h 4.704 USD/h
Paris (FR) / eu-west-3
1.37935 USD/h 4.704 USD/h
Seoul (KR) / ap-northeast-2
1.30695 USD/h 4.776 USD/h
Frankfurt (DE) / eu-central-1
1.959533 USD/h 4.776 USD/h
Singapore (SG) / ap-southeast-1
1.757533 USD/h 4.8 USD/h
Tokyo (JP) / ap-northeast-1
1.232667 USD/h 4.872 USD/h
Sydney (AU) / ap-southeast-2
1.614367 USD/h 4.896 USD/h
Cape Town (ZA) / af-south-1
1.004667 USD/h 5.304 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
24
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
768 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
768 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
24 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
36 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, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, 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, avx512_vnni
Ecpus
29.4
Scalability
122.5

System Resources and Accelerators

MEMORY
Memory Amount
384 GiB
Memory Amount Actual
384 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
    1800 GB
    Storage Type
    nvme ssd
    Storages
    • 900 GB nvme ssd
    • 900 GB nvme ssd
    NETWORK
    Network Speed Baseline
    50 Gbps
    Network Speed Max
    50 Gbps
    Network Storage Speed Baseline
    9.5 Gbps
    Network Storage Speed Max
    9.5 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized instance featuring high-speed local NVMe storage, 50 Gbps network bandwidth, and 384 GB of DDR4 RAM for database workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r5dn.12xlarge is a memory-optimized instance featuring 48 vCPUs and 24 physical cores powered by an Intel Xeon 8259CL processor running at 3.1 GHz. It is equipped with 384.0 GB of DDR4 memory, 1800 GB of local NVMe SSD storage, and a baseline network bandwidth of 50 Gbps. Operating on the Nitro hypervisor, the instance supports AVX-512 instructions. Benchmark data indicates average performance for multi-core CPU tasks, memory bandwidth, and database operations, though single-core performance and single-threaded compression tasks are weak. The instance lacks GPU acceleration. This hardware profile is designed for memory-intensive workloads, database operations, and applications requiring high network throughput and local NVMe storage.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.65Score
    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) 3,949,306 ops/sec 1,896,415 ops/sec 2.08 50.00% 50.00% +44.20%
    Redis RPS (pipeline=16, SET) 22,886,306 ops/sec 11,539,523 ops/sec 1.98 20.00% 20.00% +14.60%
    PassMark Memory Mark (composite) 2,668 2,411 1.11 10.00% 10.00% +1.05%
    Memory bandwidth (read, 16 MB ~ L3) 112,385 MB/sec 107,368 MB/sec 1.05 10.00% 10.00% +0.49%
    PassMark single-thread CPU 1,952 Mops/s 2,363 Mops/s 0.826 10.00% 10.00% -1.89%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,249

    Geekbench Multi-Core

    Score: 10,934

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 34703
    Compression
    		 590924
    Encryption
    		 18575
    Extended Instructions
    		 37147
    Floating Point Maths
    		 72992
    Integer Maths
    		 136454
    Physics
    		 2538
    Prime Numbers
    		 174
    Single Threaded
    		 1952
    String Sorting
    		 68655

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2668
    Database Operations
    		 15575
    Memory Latency
    		 52
    Memory Read Cached
    		 23783
    Memory Read Uncached
    		 10352
    Memory Write
    		 10130

    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
    r5dn.large 216 GiB0
    r5dn.xlarge 432 GiB0
    r5dn.2xlarge 864 GiB0
    r5dn.4xlarge 16128 GiB0
    r5dn.8xlarge 32256 GiB0
    r5dn.16xlarge 64512 GiB0
    r5dn.24xlarge 96768 GiB0

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    r5dn.12xlarge FAQs