logo

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 0.3744 USD per hour.
72 vCPU
144 GiB Memory
1.8 TB Storage
Spare SCore
66669
(All-cores)
1424
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c5d.18xlarge
Description
Compute optimized [Instance store volumes] Gen5 18xlarge
Family
c5d
Hw Virt
Status
active
Observed At
2026-07-30T03:33:31.792343

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.7355 USD/h 3.456 USD/h
Northern Virgina (US) / us-east-1
1.0995 USD/h 3.456 USD/h
Oregon (US) / us-west-2
1.6199 USD/h 3.456 USD/h
Mumbai (IN) / ap-south-1
0.793133 USD/h 3.564 USD/h
Hyderabad (IN) / ap-south-2
1.0845 USD/h 3.564 USD/h
Stockholm (SE) / eu-north-1
0.655567 USD/h 3.744 USD/h
Quebec (CA) / ca-central-1
1.337633 USD/h 3.816 USD/h
Aragón (ES) / eu-south-2
1.1917 USD/h 3.924 USD/h
Dublin (IE) / eu-west-1
1.923633 USD/h 3.924 USD/h
Seoul (KR) / ap-northeast-2
0.93755 USD/h 3.96 USD/h
Frankfurt (DE) / eu-central-1
1.286767 USD/h 3.996 USD/h
Jakarta (ID) / ap-southeast-3
0.5252 USD/h 4.032 USD/h
Singapore (SG) / ap-southeast-1
1.521667 USD/h 4.032 USD/h
Milan (IT) / eu-south-1
0.777667 USD/h 4.104 USD/h
Tel Aviv (IL) / il-central-1
1.088267 USD/h 4.12 USD/h
Paris (FR) / eu-west-3
0.863033 USD/h 4.14 USD/h
London (GB) / eu-west-2
1.5508 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
1.3897 USD/h 4.32 USD/h
Osaka (JP) / ap-northeast-3
1.303233 USD/h 4.392 USD/h
Tokyo (JP) / ap-northeast-1
0.8985 USD/h 4.392 USD/h
Zurich (CH) / eu-central-2
1.1276 USD/h 4.396 USD/h
Hong Kong (HK) / ap-east-1
0.7337 USD/h 4.428 USD/h
Melbourne (AU) / ap-southeast-4
0.691233 USD/h 4.536 USD/h
Sydney (AU) / ap-southeast-2
1.592533 USD/h 4.536 USD/h
Cape Town (ZA) / af-south-1
0.591867 USD/h 4.68 USD/h
Sao Paulo (BR) / sa-east-1
2.161067 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
130

System Resources and Accelerators

MEMORY
Memory Amount
144 GiB
Memory Amount Actual
144 GiB
Memory Generation
DDR4
Memory Speed
2666 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
    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 high-frequency processors, fast local NVMe storage, and strong multi-core performance for demanding workloads.

    Compute OptimizedStorage & Database

    Amazon Web Services c5d.18xlarge is a compute-optimized instance featuring 72 vCPUs and 36 physical cores powered by an Intel Xeon 8124M processor running at 3.4 GHz. Built on the Nitro hypervisor, it includes 144.0 GB of DDR4 memory, 1800 GB of local NVMe SSD storage, and a 25 Gbps baseline network speed. Benchmark data indicates strong multi-core CPU performance and high memory read bandwidth, alongside strong database and Redis SET operations. However, the instance exhibits weak performance in LLM text generation tasks due to the absence of GPU acceleration. With a resource density of 2.0 GB of RAM per core, the c5d.18xlarge provides a cost-efficient profile for high-compute workloads requiring fast local storage. It is highly suited for batch processing, high-throughput database operations, and distributed analytics.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    2.45Score
    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 1,896,415 ops/sec 3.32 50.00% 50.00% +82.20%
    Redis RPS (pipeline=16, SET) 36,314,512 ops/sec 11,539,523 ops/sec 3.15 20.00% 20.00% +25.80%
    PassMark Memory Mark (composite) 2,707 2,411 1.12 10.00% 10.00% +1.14%
    Memory bandwidth (read, 16 MB ~ L3) 216,201 MB/sec 107,368 MB/sec 2.01 10.00% 10.00% +7.23%
    PassMark single-thread CPU 2,012 Mops/s 2,363 Mops/s 0.851 10.00% 10.00% -1.60%

    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

    INSTANCEvCPUsMEMORYGPUs
    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

    Similar Servers

    INSTANCEVENDORvCPUsMEMORYGPUs

    c5d.18xlarge FAQs