c5d.18xlarge by Amazon Web Services

c5d.18xlarge is a Compute optimized [Instance store volumes] Gen5 18xlarge server offered by Amazon Web Services with 72 vCPUs, 144 GiB of memory and 1.8 TB of storage. The pricing starts at 0.3564 USD per hour.
72 vCPU
144 GiB Memory
1.8 TB Storage
Spare SCore
66,669
(All-cores)
1,424
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c5d.18xlarge
API Reference Object
-
Description
Compute optimized [Instance store volumes] Gen5 18xlarge
Family
c5d
Hw Virt
Status
active
Observed At
2026-10-17T07:16:38.104618

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
1.4955 USD/h 3.456 USD/h
Northern Virgina (US) / us-east-1
0.97144 USD/h 3.456 USD/h
Oregon (US) / us-west-2
1.462525 USD/h 3.456 USD/h
Hyderabad (IN) / ap-south-2
0.3672 USD/h 3.564 USD/h
Mumbai (IN) / ap-south-1
1.061133 USD/h 3.564 USD/h
Stockholm (SE) / eu-north-1
0.615867 USD/h 3.744 USD/h
Quebec (CA) / ca-central-1
0.735433 USD/h 3.816 USD/h
Aragón (ES) / eu-south-2
1.536367 USD/h 3.924 USD/h
Dublin (IE) / eu-west-1
1.855 USD/h 3.924 USD/h
Seoul (KR) / ap-northeast-2
0.615025 USD/h 3.96 USD/h
Frankfurt (DE) / eu-central-1
1.013033 USD/h 3.996 USD/h
Jakarta (ID) / ap-southeast-3
0.4032 USD/h 4.032 USD/h
Singapore (SG) / ap-southeast-1
1.558533 USD/h 4.032 USD/h
Milan (IT) / eu-south-1
0.929733 USD/h 4.104 USD/h
Tel Aviv (IL) / il-central-1
1.078833 USD/h 4.12 USD/h
Paris (FR) / eu-west-3
0.808933 USD/h 4.14 USD/h
London (GB) / eu-west-2
1.034233 USD/h 4.14 USD/h
United Arab Emirates / me-central-1
1.7669 USD/h 4.316 USD/h
California (US) / us-west-1
1.26155 USD/h 4.32 USD/h
Osaka (JP) / ap-northeast-3
0.933933 USD/h 4.392 USD/h
Tokyo (JP) / ap-northeast-1
1.989133 USD/h 4.392 USD/h
Zurich (CH) / eu-central-2
0.8448 USD/h 4.396 USD/h
Hong Kong (HK) / ap-east-1
0.7023 USD/h 4.428 USD/h
Melbourne (AU) / ap-southeast-4
0.998267 USD/h 4.536 USD/h
Sydney (AU) / ap-southeast-2
1.553233 USD/h 4.536 USD/h
Cape Town (ZA) / af-south-1
0.8455 USD/h 4.68 USD/h
Sao Paulo (BR) / sa-east-1
1.052033 USD/h 5.364 USD/h

Processor

vCPUs
72
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
36
CPU Speed
3.4 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8124M
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
36 MiB
CPU L3 Cache
25 MiB
CPU L3 Cache Total
50 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
46.8
Scalability
65

System Resources and Accelerators

MEMORY
Memory Amount
144 GiB
Memory Amount Actual
144 GiB
Memory Generation
DDR4
Memory Speed
2666 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    1800 GB
    Storage Type
    nvme ssd
    Storages
    • 900 GB nvme ssd
    • 900 GB nvme ssd
    NETWORK
    Network Speed Baseline
    25 Gbps
    Network Speed Max
    25 Gbps
    Network Storage Speed Baseline
    19 Gbps
    Network Storage Speed Max
    19 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A compute-optimized instance featuring seventy-two virtual cores, integrated local NVMe storage, and strong multi-core processing capabilities for demanding workloads.

    Compute OptimizedStorage & Database

    Amazon Web Services c5d.18xlarge is an x86_64 compute-optimized instance featuring 72 vCPUs and 36 physical cores powered by an Intel Xeon 8124M processor running at 3.4 GHz. It is equipped with 144.0 GB of DDR4 RAM, 1800 GB of local NVMe SSD storage, and a 25 Gbps baseline network interface. Operating on the Nitro hypervisor, the instance demonstrates strong multi-core CPU performance and high memory read bandwidth, both ranking in the top 25 percent of benchmarks. However, it displays average single-core performance and weak LLM text generation speeds. The qualitative cost profile reflects a high-density compute resource with bundled high-speed local storage, making it suitable for database operations, multi-threaded batch processing, and distributed analytics rather than memory-intensive or generative AI workloads.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    2.4Score
    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) 6,305,077 ops/sec 1,917,050 ops/sec 3.3 50.00% 50.00% +82.00%
    Redis RPS (pipeline=16, SET) 36,314,512 ops/sec 11,661,818 ops/sec 3 20.00% 20.00% +25.00%
    PassMark Memory Mark (composite) 2,707 2,417 1.1 10.00% 10.00% +0.96%
    Memory bandwidth (read, 16 MB ~ L3) 216,201 MB/sec 108,361 MB/sec 2 10.00% 10.00% +7.20%
    PassMark single-thread CPU 2,012 Mops/s 2,365 Mops/s 0.83 10.00% 10.00% -1.80%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,181

    Geekbench Multi-Core

    Score: 12,170

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 49975
    Compression
    		 973197
    Encryption
    		 30423
    Extended Instructions
    		 66801
    Floating Point Maths
    		 119666
    Integer Maths
    		 223718
    Physics
    		 4364
    Prime Numbers
    		 264
    Single Threaded
    		 2012
    String Sorting
    		 111674

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2707
    Database Operations
    		 22234
    Memory Latency
    		 52
    Memory Read Cached
    		 24437
    Memory Read Uncached
    		 10438
    Memory Write
    		 10128

    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
    c5d.large 24 GiB0
    c5d.xlarge 48 GiB0
    c5d.2xlarge 816 GiB0
    c5d.4xlarge 1632 GiB0
    c5d.9xlarge 3672 GiB0
    c5d.12xlarge 4896 GiB0
    c5d.24xlarge 96192 GiB0

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    c5d.18xlarge FAQs