c7a.32xlarge by Amazon Web Services

c7a.32xlarge is a Compute optimized [AMD processors] Gen7 32xlarge server offered by Amazon Web Services with 128 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.7032 USD per hour.
128 vCPU
256 GiB Memory
Spare SCore
392,790
(All-cores)
3,076
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c7a.32xlarge
Description
Compute optimized [AMD processors] Gen7 32xlarge
Family
c7a
Hw Virt
Status
active
Observed At
2026-10-29T10:04:49.302701

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
2.269 USD/h 6.569 USD/h
Northern Virgina (US) / us-east-1
2.42332 USD/h 6.569 USD/h
Oregon (US) / us-west-2
2.486425 USD/h 6.569 USD/h
Stockholm (SE) / eu-north-1
0.846067 USD/h 7.0323 USD/h
Aragón (ES) / eu-south-2
0.723533 USD/h 7.0464 USD/h
Dublin (IE) / eu-west-1
3.2184 USD/h 7.0477 USD/h
Frankfurt (DE) / eu-central-1
1.894133 USD/h 7.4963 USD/h
Singapore (SG) / ap-southeast-1
3.086567 USD/h 7.5738 USD/h
London (GB) / eu-west-2
2.228033 USD/h 7.8054 USD/h
California (US) / us-west-1
1.62755 USD/h 8.1914 USD/h
Tokyo (JP) / ap-northeast-1
2.391067 USD/h 8.2688 USD/h

Processor

vCPUs
128
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
128
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
4 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
128 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
512 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
127.7
Scalability
99.77

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
      NETWORK
      Network Speed Baseline
      50 Gbps
      Network Speed Max
      50 Gbps
      Network Storage Speed Baseline
      40 Gbps
      Network Storage Speed Max
      40 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-density compute instance featuring 128 dedicated AMD EPYC cores and DDR5 memory optimized for parallel processing and cryptographic workloads.

      Compute Optimized

      Amazon Web Services c7a.32xlarge is an x86_64 compute-optimized instance featuring 128 dedicated physical cores powered by an AMD EPYC 9R14 processor running at 3.7 GHz. It is configured with 256 GB of DDR5 memory, yielding a low memory-to-core ratio of 2.0 GB per core, and lacks local storage and GPU accelerators. Built on the Nitro hypervisor, the instance provides 50 Gbps of baseline network bandwidth. Benchmark results show top-tier multi-core CPU performance and memory bandwidth, alongside strong database and cryptographic execution. However, single-threaded performance and multi-threaded decompression fall into the average tier. This resource profile offers high compute density for parallel processing but presents a tradeoff for memory-intensive applications. It is suited for compute-heavy workloads such as software compilation, physics simulations, and CPU-based language model prompt processing.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      5.9Score
      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) 16,465,716 ops/sec 1,919,289 ops/sec 8.4 50.00% 50.00% +190.00%
      Redis RPS (pipeline=16, SET) 134,417,228 ops/sec 11,728,058 ops/sec 11 20.00% 20.00% +62.00%
      PassMark Memory Mark (composite) 2,863 2,416 1.2 10.00% 10.00% +1.80%
      Memory bandwidth (read, 16 MB ~ L3) 725,841 MB/sec 108,466 MB/sec 6.6 10.00% 10.00% +21.00%
      PassMark single-thread CPU 2,888 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,997

      Geekbench Multi-Core

      Score: 20,344

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 128,733
      Compression
      		 3,057,053
      Encryption
      		 166,620
      Extended Instructions
      		 243,000
      Floating Point Maths
      		 681,417
      Integer Maths
      		 772,833
      Physics
      		 30,576
      Prime Numbers
      		 2,295
      Single Threaded
      		 2,888
      String Sorting
      		 440,407

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,863
      Database Operations
      		 31,871
      Memory Latency
      		 77
      Memory Read Cached
      		 27,815
      Memory Read Uncached
      		 26,988
      Memory Write
      		 26,307

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 929.25 316.39 0.34×
      bitops
      		 160,058 19,834,372 123.92×
      branch
      		 212,589 26,914,822 126.60×
      funccall
      		 616.99 75,391 122.19×
      funcret
      		 20,938 2,416,775 115.43×
      hash
      		 163,207 20,702,595 126.85×
      intmath
      		 66,877 8,494,978 127.02×
      nop
      		 627,221 80,116,787 127.73×
      prime
      		 482,436 55,254,622 114.53×
      rotate
      		 88,133 11,224,865 127.36×
      str
      		 1,075,623 114,990,915 106.91×
      wcs
      		 705,523 75,802,447 107.44×
      CryptographySingleMultiScaling
      crypt
      		 3,761 446,699 118.76×
      CompressionSingleMultiScaling
      jpeg
      		 895.91 81,617 91.10×
      zlib
      		 56.48 7,402 131.06×
      HypervisorSingleMultiScaling
      clock
      		 15,248 228,369 14.98×
      clone
      		 201.37 8,485 42.14×
      context
      		 1,877 239,429 127.58×
      cpu-sched
      		 67.03 8,189 122.17×
      eventfd
      		 65,315 5,788,374 88.62×
      fault
      		 11,212 168,989 15.07×
      fork
      		 3,183 56,172 17.65×
      getrandom
      		 47,009 5,798,789 123.36×
      hrtimers
      		 184,365 8,518,971 46.21×
      mprotect
      		 452,283 15,479,133 34.22×
      mtx
      		 46,175,385 13,320,916,070 288.49×
      munmap
      		 2,331 63,439 27.21×
      null
      		 197,567 25,241,425 127.76×
      pipe
      		 997,381 33,176,499 33.26×
      priv-instr
      		 363,870 14,224,075 39.09×
      resched
      		 4,643,484 15,015,210 3.23×
      switch
      		 234,748 22,398,305 95.41×
      timermix
      		 161,737 20,248,334 125.19×
      tlb-shootdown
      		 8,379 287,586 34.32×
      tsc
      		 783,954 100,196,899 127.81×
      usersyscall
      		 235,223 11,547,313 49.09×
      vdso
      		 93,750,734 11,904,860,732 126.98×
      vfork
      		 21,040 133,523 6.35×
      x86syscall
      		 2,280,448 291,372,473 127.77×
      yield
      		 81,353,416 82,073,367 1.01×
      zero
      		 1,692,708 216,127,050 127.68×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 16,449 1,926,993 117.15×
      expmath
      		 2,815 355,000 126.13×
      fma
      		 918,083 112,408,325 122.44×
      fp
      		 251.32 31,276 124.45×
      fractal
      		 7.4 897.08 121.23×
      hyperbolic
      		 3,831 477,613 124.66×
      logmath
      		 4,557 567,859 124.61×
      matrix
      		 4,952 545,510 110.15×
      matrix-3d
      		 867.05 25,369 29.26×
      monte-carlo
      		 107.84 13,792 127.89×
      mpfr
      		 1,677 196,307 117.06×
      powmath
      		 1,357 172,570 127.14×
      trig
      		 1,869 229,234 122.67×
      veccmp
      		 19,055 2,273,425 119.31×
      vecfp
      		 1,813 218,295 120.43×
      vecmath
      		 4,023 504,625 125.45×
      vecshuf
      		 638.33 77,825 121.92×
      vecwide
      		 28,510 3,117,521 109.35×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 10.4 1,196 114.95×
      bsearch
      		 310 35,585 114.79×
      bubblesort
      		 0.8 102.4 128.00×
      fibsearch
      		 379.78 47,199 124.28×
      heapsort
      		 10.6 1,228 115.88×
      hsearch
      		 11,316 1,207,618 106.71×
      insertionsort
      		 12.6 1,482 117.62×
      malloc
      		 3,452,441 160,016,186 46.35×
      mcontend
      		 60.68 16,998 280.13×
      mergesort
      		 33.8 3,875 114.64×
      qsort
      		 22 2,482 112.83×
      skiplist
      		 7,011 842,067 120.10×
      tree
      		 2 176.87 88.44×
      MemorySingleMultiScaling
      cache
      		 861,497 2,136,925 2.48×
      cachehammer
      		 268,525 12,399,731 46.18×
      cacheline
      		 46.17 4,055 87.83×
      l1cache
      		 253.97 28,499 112.21×
      memcpy
      		 448.46 52,169 116.33×
      memrate
      		 3.71 46.37 12.50×
      memthrash
      		 354.09 1,782 5.03×
      ptr-chase
      		 36,533,509 1,097,095,867 30.03×
      spinmem
      		 249.58 7,668 30.72×
      stream
      		 59.33 150,606 2538.45×
      vm
      		 77,795 308,854 3.97×

      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
      c7a.medium 12 GiB0
      c7a.large 24 GiB0
      c7a.xlarge 48 GiB0
      c7a.2xlarge 816 GiB0
      c7a.4xlarge 1632 GiB0
      c7a.8xlarge 3264 GiB0
      c7a.12xlarge 4896 GiB0

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      c7a.32xlarge FAQs