c8a.2xlarge by Amazon Web Services

c8a.2xlarge is a Compute optimized [AMD processors] Gen8 2xlarge server offered by Amazon Web Services with 8 vCPUs, 16 GiB of memory and 0 GB of storage. The pricing starts at 0.0613 USD per hour.
8 vCPU
16 GiB Memory
Spare SCore
30,083
(All-cores)
3,773
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8a.2xlarge
Description
Compute optimized [AMD processors] Gen8 2xlarge
Family
c8a
Hw Virt
Average Time To Start
6.33
Status
active
Observed At
2026-09-15T00:56:04.051484

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.117567 USD/h 0.4311 USD/h
Oregon (US) / us-west-2
0.160325 USD/h 0.4311 USD/h
Northern Virgina (US) / us-east-1
0.184 USD/h 0.4311 USD/h
Aragón (ES) / eu-south-2
0.0638 USD/h 0.4624 USD/h
Dublin (IE) / eu-west-1
0.219 USD/h 0.4625 USD/h
Frankfurt (DE) / eu-central-1
0.1906 USD/h 0.492 USD/h
Tokyo (JP) / ap-northeast-1
0.205633 USD/h 0.5426 USD/h

Processor

vCPUs
8
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
8
CPU Speed
4.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9R45
CPU L1D Cache
48 KiB
CPU L1D Cache Total
384 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
8 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
32 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, xtopology, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, ssbd, perfmon_v2, ibrs, ibpb, stibp, ibrs_enhanced, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx_vnni, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, movdiri, movdir64b, fsrm, avx512_vp2intersect, flush_l1d
Ecpus
8
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
16 GiB
Memory Amount Actual
16 GiB
Memory Generation
DDR5
Memory Speed
6400 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      3.75 Gbps
      Network Speed Max
      15 Gbps
      Network Storage Speed Baseline
      2.5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      An 8-core AMD EPYC compute-optimized server with high-speed DDR5 memory, delivering top-tier single-core performance for compute-intensive workloads.

      Compute Optimized

      Amazon Web Services c8a.2xlarge is a compute-optimized instance featuring an 8-core AMD EPYC 9R45 processor running at 4.5 GHz with 16.0 GB of DDR5 memory. Operating on the AWS Nitro hypervisor, this x86_64 server provides dedicated CPU allocation with 1.0 thread per core and a 4 Gbps baseline network bandwidth, though it lacks local storage and GPU accelerators. Benchmark data highlights top-tier single-core CPU and text processing capabilities, alongside strong performance in small-model LLM inference. Multi-core execution and memory bandwidth fall into the average tier. Given its high clock speed and 1:2 memory-to-core ratio, the c8a.2xlarge is qualitatively cost-efficient for compute-heavy, single-threaded tasks, software compilation, and lightweight web serving workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.37Score
      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) 3,004,992 ops/sec 1,917,397 ops/sec 1.57 50.00% 50.00% +25.30%
      Redis RPS (pipeline=16, SET) 19,643,306 ops/sec 11,681,410 ops/sec 1.68 20.00% 20.00% +10.90%
      PassMark Memory Mark (composite) 2,195 2,418 0.908 10.00% 10.00% -0.96%
      Memory bandwidth (read, 16 MB ~ L3) 62,481 MB/sec 108,140 MB/sec 0.578 10.00% 10.00% -5.33%
      PassMark single-thread CPU 3,824 Mops/s 2,365 Mops/s 1.62 10.00% 10.00% +4.94%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,803

      Geekbench Multi-Core

      Score: 13,985

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 25609
      Compression
      		 263956
      Encryption
      		 12686
      Extended Instructions
      		 24372
      Floating Point Maths
      		 61041
      Integer Maths
      		 60903
      Physics
      		 3076
      Prime Numbers
      		 220
      Single Threaded
      		 3824
      String Sorting
      		 36385

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2195
      Database Operations
      		 10388
      Memory Latency
      		 87
      Memory Read Cached
      		 33844
      Memory Read Uncached
      		 32463
      Memory Write
      		 32808

      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

      PostgreSQL heavy read-only throughput

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      c8a.medium 12 GiB0
      c8a.large 24 GiB0
      c8a.xlarge 48 GiB0
      c8a.4xlarge 1632 GiB0
      c8a.8xlarge 3264 GiB0
      c8a.12xlarge 4896 GiB0
      c8a.16xlarge 64128 GiB0

      Similar Servers

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      c8a.2xlarge FAQs