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c7a.4xlarge by Amazon Web Services

c7a.4xlarge is a Compute optimized [AMD processors] Gen7 4xlarge server offered by Amazon Web Services with 16 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.1131 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
42308
(All-cores)
2817
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c7a.4xlarge
Description
Compute optimized [AMD processors] Gen7 4xlarge
Family
c7a
Hw Virt
Status
active
Observed At
2026-08-13T21:22:46.171690

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.287533 USD/h 0.8211 USD/h
Oregon (US) / us-west-2
0.341875 USD/h 0.8211 USD/h
Northern Virgina (US) / us-east-1
0.33838 USD/h 0.8211 USD/h
Stockholm (SE) / eu-north-1
0.233767 USD/h 0.879 USD/h
Aragón (ES) / eu-south-2
0.115567 USD/h 0.8808 USD/h
Dublin (IE) / eu-west-1
0.4465 USD/h 0.881 USD/h
Frankfurt (DE) / eu-central-1
0.395533 USD/h 0.937 USD/h
Singapore (SG) / ap-southeast-1
0.4183 USD/h 0.9467 USD/h
London (GB) / eu-west-2
0.3703 USD/h 0.9757 USD/h
California (US) / us-west-1
0.3483 USD/h 1.0239 USD/h
Tokyo (JP) / ap-northeast-1
0.367533 USD/h 1.0336 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
3.7 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9R14
CPU L1D Cache
32 KiB
CPU L1D Cache Total
512 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
16 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
64 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, 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, bmi1, avx2, smep, bmi2, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, flush_l1d
Ecpus
15
Scalability
93.75

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 GiB
Memory Generation
DDR5
Memory Speed
4800 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
      6.25 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A compute-optimized instance featuring dedicated AMD EPYC cores and high-speed DDR5 memory for single-threaded and lightweight inference workloads.

      Compute Optimized

      The Amazon Web Services c7a.4xlarge is a compute-optimized instance featuring 16 dedicated physical cores and 16 vCPUs powered by an AMD EPYC 9R14 processor running at 3.7 GHz. Built on the AWS Nitro hypervisor, it includes 32.0 GB of DDR5 memory operating at 5 GHz, resulting in a 2.0 GB per core memory ratio. It does not include local storage or GPUs, and it provides a baseline network bandwidth of 6 Gbps. Performance benchmarks highlight strong single-core CPU capabilities and top-tier text generation speeds for small language models. This instance is designed for compute-intensive workloads, text processing, and lightweight inference tasks that benefit from dedicated physical cores and high-speed memory.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.2Score
      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) 2,229,248 ops/sec 1,910,660 ops/sec 1.17 50.00% 50.00% +8.17%
      Redis RPS (pipeline=16, SET) 19,349,081 ops/sec 11,608,287 ops/sec 1.67 20.00% 20.00% +10.80%
      PassMark Memory Mark (composite) 2,684 2,416 1.11 10.00% 10.00% +1.05%
      Memory bandwidth (read, 16 MB ~ L3) 80,644 MB/sec 107,896 MB/sec 0.747 10.00% 10.00% -2.87%
      PassMark single-thread CPU 2,889 Mops/s 2,364 Mops/s 1.22 10.00% 10.00% +2.01%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,709

      Geekbench Multi-Core

      Score: 12,184

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 36580
      Compression
      		 420390
      Encryption
      		 20929
      Extended Instructions
      		 39735
      Floating Point Maths
      		 85278
      Integer Maths
      		 96625
      Physics
      		 4235
      Prime Numbers
      		 304
      Single Threaded
      		 2889
      String Sorting
      		 59692

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2684
      Database Operations
      		 14975
      Memory Latency
      		 76
      Memory Read Cached
      		 27834
      Memory Read Uncached
      		 27092
      Memory Write
      		 26456

      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
      c7a.medium 12 GiB0
      c7a.large 24 GiB0
      c7a.xlarge 48 GiB0
      c7a.2xlarge 816 GiB0
      c7a.8xlarge 3264 GiB0
      c7a.12xlarge 4896 GiB0
      c7a.16xlarge 64128 GiB0

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      c7a.4xlarge FAQs