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r5d.12xlarge by Amazon Web Services

r5d.12xlarge is a Memory optimized [Instance store volumes] 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 0.384 USD per hour.
48 vCPU
384 GiB Memory
1.8 TB Storage
Spare SCore
40667
(All-cores)
1379
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5d.12xlarge
Description
Memory optimized [Instance store volumes] Gen5 12xlarge
Family
r5d
Hw Virt
Status
active
Observed At
2026-08-02T02:53:04.436172

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
1.172067 USD/h 3.456 USD/h
Northern Virgina (US) / us-east-1
1.47342 USD/h 3.456 USD/h
Oregon (US) / us-west-2
1.625 USD/h 3.456 USD/h
Mumbai (IN) / ap-south-1
0.6234 USD/h 3.624 USD/h
Hyderabad (IN) / ap-south-2
1.068067 USD/h 3.624 USD/h
Stockholm (SE) / eu-north-1
0.613533 USD/h 3.648 USD/h
Quebec (CA) / ca-central-1
0.934433 USD/h 3.792 USD/h
Aragón (ES) / eu-south-2
0.4944 USD/h 3.84 USD/h
Dublin (IE) / eu-west-1
1.714 USD/h 3.84 USD/h
California (US) / us-west-1
0.9846 USD/h 3.888 USD/h
Milan (IT) / eu-south-1
0.7948 USD/h 4.032 USD/h
Tel Aviv (IL) / il-central-1
1.075633 USD/h 4.032 USD/h
Paris (FR) / eu-west-3
0.826233 USD/h 4.056 USD/h
London (GB) / eu-west-2
1.383667 USD/h 4.056 USD/h
Seoul (KR) / ap-northeast-2
1.26815 USD/h 4.152 USD/h
Frankfurt (DE) / eu-central-1
1.5928 USD/h 4.152 USD/h
Jakarta (ID) / ap-southeast-3
0.4679 USD/h 4.176 USD/h
Melbourne (AU) / ap-southeast-4
0.676333 USD/h 4.176 USD/h
Tokyo (JP) / ap-northeast-1
0.980833 USD/h 4.176 USD/h
Osaka (JP) / ap-northeast-3
1.150933 USD/h 4.176 USD/h
Sydney (AU) / ap-southeast-2
1.369167 USD/h 4.176 USD/h
Singapore (SG) / ap-southeast-1
1.648 USD/h 4.176 USD/h
Hong Kong (HK) / ap-east-1
0.491967 USD/h 4.2 USD/h
United Arab Emirates / me-central-1
1.7292 USD/h 4.224 USD/h
Cape Town (ZA) / af-south-1
0.535467 USD/h 4.56 USD/h
Zurich (CH) / eu-central-2
0.6259 USD/h 4.567 USD/h
Sao Paulo (BR) / sa-east-1
4.1298 USD/h 5.472 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
Ecpus
29.5
Scalability
122.92

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
    12 Gbps
    Network Speed Max
    12 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-capacity DDR4 RAM and local NVMe SSD storage for memory-intensive database and data processing workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r5d.12xlarge is a memory-optimized instance featuring 48 vCPUs, 24 physical Intel Xeon 8259CL cores, and 384.0 GB of DDR4 RAM. Operating on the Nitro hypervisor, this x86_64 instance includes 1800 GB of local NVMe SSD storage and a baseline network bandwidth of 12 Gbps. Benchmark results place its multi-core CPU, memory bandwidth, and database operations in the average tier, though single-core performance and single-threaded gzip compression fall into the bottom 25% tier. The high memory-to-vCPU ratio of 1:8 combined with local NVMe storage provides qualitative cost efficiency for memory-intensive applications. This instance is suited for database hosting, caching layers, and data processing tasks that require substantial memory capacity and fast local storage rather than high single-threaded compute performance.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.67Score
    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) 4,033,486 ops/sec 1,896,415 ops/sec 2.13 50.00% 50.00% +45.90%
    Redis RPS (pipeline=16, SET) 23,039,389 ops/sec 11,539,523 ops/sec 2 20.00% 20.00% +14.90%
    PassMark Memory Mark (composite) 2,642 2,411 1.1 10.00% 10.00% +0.96%
    Memory bandwidth (read, 16 MB ~ L3) 112,828 MB/sec 107,368 MB/sec 1.05 10.00% 10.00% +0.49%
    PassMark single-thread CPU 1,950 Mops/s 2,363 Mops/s 0.825 10.00% 10.00% -1.91%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,152

    Geekbench Multi-Core

    Score: 10,626

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 34730
    Compression
    		 591854
    Encryption
    		 18582
    Extended Instructions
    		 37139
    Floating Point Maths
    		 72994
    Integer Maths
    		 136330
    Physics
    		 2561
    Prime Numbers
    		 173
    Single Threaded
    		 1950
    String Sorting
    		 69343

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2642
    Database Operations
    		 15531
    Memory Latency
    		 52
    Memory Read Cached
    		 23645
    Memory Read Uncached
    		 10298
    Memory Write
    		 9933

    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.16xlarge 64512 GiB0
    r5d.24xlarge 96768 GiB0

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    r5d.12xlarge FAQs