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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 0.1053 USD per hour.
8 vCPU
16 GiB Memory
Spare SCore
30083
(All-cores)
3773
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8a.2xlarge
Description
Compute optimized [AMD processors] Gen8 2xlarge
Family
c8a
Hw Virt
Status
active
Observed At
2026-07-21T01:33:20.919379

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.138433 USD/h 0.4311 USD/h
Northern Virgina (US) / us-east-1
0.18482 USD/h 0.4311 USD/h
Oregon (US) / us-west-2
0.17735 USD/h 0.4311 USD/h
Aragón (ES) / eu-south-2
0.148933 USD/h 0.4624 USD/h
Dublin (IE) / eu-west-1
0.2122 USD/h 0.4625 USD/h
Frankfurt (DE) / eu-central-1
0.168133 USD/h 0.492 USD/h
Tokyo (JP) / ap-northeast-1
0.235367 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

      Server Description

      A dedicated compute-optimized instance featuring high-frequency AMD EPYC processing and DDR5 memory for single-threaded and compute-intensive workloads.

      Compute OptimizedGeneral Purpose

      The Amazon Web Services c8a.2xlarge is an x86_64 compute-optimized server instance powered by an AMD EPYC 9R45 processor with 8 dedicated physical cores and 8 vCPUs running at 4.5 GHz. It features 16.0 GB of DDR5 memory at 6 GHz, yielding a 2.0 GB per core ratio, and operates under the Nitro hypervisor with a baseline network bandwidth of 4 Gbps. The instance lacks local storage and GPU hardware. Benchmarks show top-tier single-core performance, including stress-ng single-core, Geekbench single-core, and single-threaded compression tests, while multi-core and memory bandwidth metrics remain average. Supported CPU instructions include AVX-512 and AES. This profile makes the c8a.2xlarge highly suitable for compute-intensive, single-threaded tasks, text processing, and small-scale LLM inference, offering a balanced, qualitative cost-to-performance ratio for compute-bound workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.38Score
      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 1,896,415 ops/sec 1.58 50.00% 50.00% +25.70%
      Redis RPS (pipeline=16, SET) 19,643,306 ops/sec 11,539,523 ops/sec 1.7 20.00% 20.00% +11.20%
      PassMark Memory Mark (composite) 2,195 2,411 0.911 10.00% 10.00% -0.93%
      Memory bandwidth (read, 16 MB ~ L3) 62,481 MB/sec 107,368 MB/sec 0.582 10.00% 10.00% -5.27%
      PassMark single-thread CPU 3,824 Mops/s 2,363 Mops/s 1.62 10.00% 10.00% +4.94%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,812

      Geekbench Multi-Core

      Score: 14,139

      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

      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

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      c8a.2xlarge FAQs