c5a.2xlarge by Amazon Web Services

c5a.2xlarge is a Compute optimized [AMD processors] Gen5 2xlarge server offered by Amazon Web Services with 8 vCPUs, 16 GiB of memory and 0 GB of storage. The pricing starts at 0.0704 USD per hour.
8 vCPU
16 GiB Memory
Spare SCore
3,070
(All-cores)
767
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c5a.2xlarge
Description
Compute optimized [AMD processors] Gen5 2xlarge
Family
c5a
Hw Virt
Status
active
Observed At
2026-10-27T18:18:52.402492

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.1117 USD/h 0.188 USD/h
Ohio (US) / us-east-2
0.084667 USD/h 0.308 USD/h
Northern Virgina (US) / us-east-1
0.13366 USD/h 0.308 USD/h
Oregon (US) / us-west-2
0.14305 USD/h 0.308 USD/h
Stockholm (SE) / eu-north-1
0.0722 USD/h 0.328 USD/h
Quebec (CA) / ca-central-1
0.200267 USD/h 0.336 USD/h
Seoul (KR) / ap-northeast-2
0.1024 USD/h 0.344 USD/h
Dublin (IE) / eu-west-1
0.193733 USD/h 0.344 USD/h
Frankfurt (DE) / eu-central-1
0.1788 USD/h 0.348 USD/h
Singapore (SG) / ap-southeast-1
0.1731 USD/h 0.352 USD/h
Milan (IT) / eu-south-1
0.1313 USD/h 0.364 USD/h
London (GB) / eu-west-2
0.154233 USD/h 0.364 USD/h
Paris (FR) / eu-west-3
0.16905 USD/h 0.364 USD/h
California (US) / us-west-1
0.13545 USD/h 0.38 USD/h
Tokyo (JP) / ap-northeast-1
0.19215 USD/h 0.384 USD/h
Hong Kong (HK) / ap-east-1
0.236633 USD/h 0.388 USD/h
Sydney (AU) / ap-southeast-2
0.207767 USD/h 0.4 USD/h
Cape Town (ZA) / af-south-1
0.1863 USD/h 0.412 USD/h
Sao Paulo (BR) / sa-east-1
0.1164 USD/h 0.472 USD/h

Processor

vCPUs
8
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
4
CPU Speed
3.3 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7R32
CPU L1D Cache
32 KiB
CPU L1D Cache Total
128 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
2 MiB
CPU L3 Cache
16 MiB
CPU L3 Cache Total
16 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, ht, syscall, nx, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, ssbd, ibrs, ibpb, stibp, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, rdpru, wbnoinvd, arat, npt, nrip_save, rdpid
Ecpus
4
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
16 GiB
Memory Amount Actual
16 GiB
Memory Generation
DDR4
Memory Speed
2933 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      2.5 Gbps
      Network Speed Max
      10 Gbps
      Network Storage Speed Baseline
      0.8 Gbps
      Network Storage Speed Max
      3.17 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A dedicated AMD EPYC compute-optimized instance offering balanced performance for web serving, Redis operations, and moderate processing workloads.

      Compute Optimized

      Amazon Web Services c5a.2xlarge is a compute-optimized instance featuring an AMD EPYC 7R32 processor with 8 vCPUs and 16.0 GB of DDR4 memory. Operating on the x86_64 architecture under the AWS Nitro hypervisor, this instance provides dedicated CPU allocation at 3.3 GHz but lacks local storage and GPU accelerators. Performance benchmarks show average capabilities across standard tasks, including Geekbench software compilation, ray tracing, and static web serving. However, it exhibits weaker performance in heavy multi-core stress tests and large-block memory bandwidth. With a 1:2 vCPU-to-RAM ratio and a baseline network bandwidth of 2 Gbps, the c5a.2xlarge is qualitatively cost-effective for moderate compute workloads, such as web serving, Redis database operations, and light image processing, while remaining constrained for memory-heavy or large-scale machine learning tasks.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.43Score
      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) 658,094 ops/sec 1,918,343 ops/sec 0.35 50.00% 50.00% -41.00%
      Redis RPS (pipeline=16, SET) 4,354,136 ops/sec 11,704,734 ops/sec 0.37 20.00% 20.00% -18.00%
      PassMark Memory Mark (composite) 2,326 2,416 0.96 10.00% 10.00% -0.41%
      Memory bandwidth (read, 16 MB ~ L3) 36,122 MB/sec 108,420 MB/sec 0.33 10.00% 10.00% -10.00%
      PassMark single-thread CPU 2,119 Mops/s 2,365 Mops/s 0.88 10.00% 10.00% -1.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,345

      Geekbench Multi-Core

      Score: 5,187

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 10,498
      Compression
      		 121,407
      Encryption
      		 8,524
      Extended Instructions
      		 7,374
      Floating Point Maths
      		 16,106
      Integer Maths
      		 27,029
      Physics
      		 1,004
      Prime Numbers
      		 43
      Single Threaded
      		 2,119
      String Sorting
      		 15,970

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,326
      Database Operations
      		 2,858
      Memory Latency
      		 50
      Memory Read Cached
      		 24,438
      Memory Read Uncached
      		 12,814
      Memory Write
      		 13,429

      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
      c5a.large 24 GiB0
      c5a.xlarge 48 GiB0
      c5a.4xlarge 1632 GiB0
      c5a.8xlarge 3264 GiB0
      c5a.12xlarge 4896 GiB0
      c5a.16xlarge 64128 GiB0
      c5a.24xlarge 96192 GiB0

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      c5a.2xlarge FAQs