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 0.097 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
42,308
(All-cores)
2,817
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c7a.4xlarge
Description
Compute optimized [AMD processors] Gen7 4xlarge
Family
Compute Optimized
Series
c7a
Hw Virt
Status
active
Observed At
2026-11-14T01:02:04.730080

Availability

Region / IDSpotOndemand
Ohio (US) / us-east-2
0.248433 USD/h
0.8211 USD/h
Oregon (US) / us-west-2
0.36685 USD/h
0.8211 USD/h
Northern Virgina (US) / us-east-1
0.2952 USD/h
0.8211 USD/h
Stockholm (SE) / eu-north-1
0.1394 USD/h
0.879 USD/h
Aragón (ES) / eu-south-2
0.103633 USD/h
0.8808 USD/h
Dublin (IE) / eu-west-1
0.4287 USD/h
0.881 USD/h
Frankfurt (DE) / eu-central-1
0.389933 USD/h
0.937 USD/h
Singapore (SG) / ap-southeast-1
0.393567 USD/h
0.9467 USD/h
London (GB) / eu-west-2
0.327433 USD/h
0.9757 USD/h
California (US) / us-west-1
0.31255 USD/h
1.0239 USD/h
Tokyo (JP) / ap-northeast-1
0.381233 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
Accelerators
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    Storage
    Storage Size
    0 GB
    Storages
      Compatible Storage IDs
      standard, gp2, gp3, st1, sc1, io1, io2
      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 delivering dedicated AMD EPYC cores and high-speed DDR5 memory for intensive CPU processing and lightweight inference.

      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. It is equipped with 32.0 GB of high-speed DDR5 memory operating at 5 GHz, but lacks local storage and GPU accelerators. Built on the Nitro hypervisor, the instance delivers a baseline network bandwidth of 6 Gbps. Performance benchmarks highlight strong single-core CPU capabilities and top-tier text generation speeds of 355.9 tokens per second for small LLM models, alongside average multi-core and memory bandwidth metrics. The hardware configuration is highly efficient for compute-intensive tasks, making it suitable for batch processing, web serving, and lightweight machine learning inference workloads.

      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 1,933,252 ops/sec 1.2 50.00% 50.00% +9.50%
      Redis RPS (pipeline=16, SET) 19,349,081 ops/sec 11,814,424 ops/sec 1.6 20.00% 20.00% +9.90%
      PassMark Memory Mark (composite) 2,684 2,408 1.1 10.00% 10.00% +0.96%
      Memory bandwidth (read, 16 MB ~ L3) 80,644 MB/sec 108,674 MB/sec 0.74 10.00% 10.00% -3.00%
      PassMark single-thread CPU 2,889 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,709

      Geekbench Multi-Core

      Score: 12,184

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 36,580
      Compression
      		 420,390
      Encryption
      		 20,929
      Extended Instructions
      		 39,735
      Floating Point Maths
      		 85,278
      Integer Maths
      		 96,625
      Physics
      		 4,235
      Prime Numbers
      		 304
      Single Threaded
      		 2,889
      String Sorting
      		 59,692

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,684
      Database Operations
      		 14,975
      Memory Latency
      		 76
      Memory Read Cached
      		 27,834
      Memory Read Uncached
      		 27,092
      Memory Write
      		 26,456

      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
      c6g.medium 12 GiB0
      c6gd.medium 12 GiB0
      c6gn.medium 12 GiB0
      c7a.medium 12 GiB0
      c7g.medium 12 GiB0
      c7gd.medium 12 GiB0
      c7gn.medium 12 GiB0

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      c7a.4xlarge FAQs