c8a.metal-24xl by Amazon Web Services

c8a.metal-24xl is a Compute optimized [AMD processors] Gen8 metal-24xl server offered by Amazon Web Services with 96 vCPUs, 192 GiB of memory and 0 GB of storage. The pricing starts at 0.5549 USD per hour.
96 vCPU
192 GiB Memory
Spare SCore
349,775
(All-cores)
3,777
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8a.metal-24xl
Description
Compute optimized [AMD processors] Gen8 metal-24xl
Family
c8a
Hw Virt
Average Time To Start
25
Status
active
Observed At
2026-11-02T08:25:35.982241

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
1.61905 USD/h 5.173 USD/h
Northern Virgina (US) / us-east-1
2.29646 USD/h 5.173 USD/h
Ohio (US) / us-east-2
2.580033 USD/h 5.173 USD/h
Aragón (ES) / eu-south-2
0.5549 USD/h 5.5493 USD/h
Dublin (IE) / eu-west-1
3.4037 USD/h 5.5502 USD/h
Frankfurt (DE) / eu-central-1
3.458833 USD/h 5.9035 USD/h
Tokyo (JP) / ap-northeast-1
1.3077 USD/h 6.5117 USD/h

Processor

vCPUs
96
CPU Allocation
Dedicated
CPU Cores
96
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
5 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
3 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
96 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
384 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, amd_lbr_v2, nopl, xtopology, nonstop_tsc, cpuid, extd_apicid, aperfmperf, rapl, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, lahf_lm, cmp_legacy, svm, extapic, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, ibs, skinit, wdt, tce, topoext, perfctr_core, perfctr_nb, bpext, perfctr_llc, mwaitx, cpb, cat_l3, cdp_l3, hw_pstate, ssbd, mba, perfmon_v2, ibrs, ibpb, stibp, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, cqm, rdt_a, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, cqm_llc, cqm_occup_llc, cqm_mbm_total, cqm_mbm_local, user_shstk, avx_vnni, avx512_bf16, clzero, irperf, xsaveerptr, rdpru, wbnoinvd, amd_ppin, cppc, arat, npt, lbrv, svm_lock, nrip_save, tsc_scale, vmcb_clean, flushbyasid, decodeassists, pausefilter, pfthreshold, avic, v_vmsave_vmload, vgif, x2avic, v_spec_ctrl, vnmi, avx512vbmi, umip, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, la57, rdpid, bus_lock_detect, movdiri, movdir64b, overflow_recov, succor, smca, fsrm, avx512_vp2intersect, flush_l1d, sev, sev_es, sev_snp, debug_swap, amd_lbr_pmc_freeze
Ecpus
92.6
Scalability
96.46

System Resources and Accelerators

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

      CPU and System Topology

      Server Description

      A bare-metal, ninety-six core compute-optimized platform delivering top-tier processor performance and high-speed memory bandwidth for demanding enterprise workloads.

      Compute Optimized

      Amazon Web Services c8a.metal-24xl is a bare-metal, compute-optimized server powered by a 96-core AMD EPYC 9R45 processor running at 4.5 GHz. Utilizing the x86_64 architecture with a dedicated CPU allocation, it features 192.0 GB of system memory, translating to 2.0 GB of RAM per core. The instance does not include local storage or GPUs, but provides a 40 Gbps baseline network bandwidth. Benchmark data ranks this server in the top tier for single-core and multi-core CPU performance, memory bandwidth, and cryptographic operations. It supports advanced instruction sets such as AVX-512 and bfloat16, facilitating rapid execution of complex mathematical tasks. The c8a.metal-24xl is highly suited for compute-intensive workloads, including software compilation, static web serving, database operations, and large language model inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      8Score
      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) 26,751,398 ops/sec 1,918,343 ops/sec 14 50.00% 50.00% +270.00%
      Redis RPS (pipeline=16, SET) 164,242,285 ops/sec 11,704,734 ops/sec 13 20.00% 20.00% +67.00%
      PassMark Memory Mark (composite) 2,956 2,416 1.2 10.00% 10.00% +1.80%
      Memory bandwidth (read, 16 MB ~ L3) 670,452 MB/sec 108,466 MB/sec 6.1 10.00% 10.00% +20.00%
      PassMark single-thread CPU 3,769 Mops/s 2,365 Mops/s 1.6 10.00% 10.00% +4.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,591

      Geekbench Multi-Core

      Score: 30,249

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 138,004
      Compression
      		 2,401,874
      Encryption
      		 137,056
      Extended Instructions
      		 200,087
      Floating Point Maths
      		 649,474
      Integer Maths
      		 708,010
      Physics
      		 28,487
      Prime Numbers
      		 2,118
      Single Threaded
      		 3,769
      String Sorting
      		 318,004

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,956
      Database Operations
      		 39,623
      Memory Latency
      		 79
      Memory Read Cached
      		 33,531
      Memory Read Uncached
      		 32,243
      Memory Write
      		 26,154

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 534.32 351.03 0.66×
      bitops
      		 227,957 18,620,033 81.68×
      branch
      		 165,554 14,529,018 87.76×
      funccall
      		 910.58 70,818 77.77×
      funcret
      		 27,881 2,094,465 75.12×
      hash
      		 218,341 18,892,428 86.53×
      intmath
      		 78,870 7,185,686 91.11×
      nop
      		 434,419 40,233,418 92.61×
      prime
      		 617,472 45,472,975 73.64×
      rotate
      		 143,400 12,768,397 89.04×
      str
      		 1,413,742 97,500,231 68.97×
      wcs
      		 1,017,342 69,713,548 68.53×
      CryptographySingleMultiScaling
      crypt
      		 5,433 395,338 72.76×
      CompressionSingleMultiScaling
      jpeg
      		 1,236 76,110 61.60×
      zlib
      		 62.87 5,780 91.94×
      HypervisorSingleMultiScaling
      clock
      		 58,319 323,796 5.55×
      clone
      		 279.16 13,913 49.84×
      context
      		 9,254 786,253 84.97×
      cpu-sched
      		 65.32 5,447 83.38×
      eventfd
      		 161,401 10,836,917 67.14×
      fault
      		 40,274 279,230 6.93×
      fork
      		 5,430 114,909 21.16×
      getrandom
      		 101,813 7,745,529 76.08×
      hrtimers
      		 185,852 4,782,840 25.73×
      mprotect
      		 786,471 28,154,419 35.80×
      mtx
      		 39,669,658 6,442,988,833 162.42×
      munmap
      		 4,630 118,545 25.61×
      null
      		 1,666,121 131,106,583 78.69×
      pipe
      		 3,218,026 58,147,507 18.07×
      priv-instr
      		 1,420,686 22,639,496 15.94×
      resched
      		 12,468,184 31,759,068 2.55×
      switch
      		 366,079 49,110,942 134.15×
      timermix
      		 1,237,944 101,886,638 82.30×
      tlb-shootdown
      		 15,457 385,994 24.97×
      tsc
      		 893,076 83,798,796 93.83×
      usersyscall
      		 1,162,391 22,858,672 19.67×
      vdso
      		 109,533,827 9,345,730,349 85.32×
      vfork
      		 42,032 218,185 5.19×
      x86syscall
      		 23,320,738 1,834,152,409 78.65×
      yield
      		 136,392,369 177,160,987 1.30×
      zero
      		 11,122,979 826,498,669 74.31×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 17,682 1,317,214 74.49×
      expmath
      		 4,006 322,244 80.43×
      fma
      		 1,584,338 121,014,394 76.38×
      fp
      		 211.2 17,110 81.01×
      fractal
      		 9 723.46 80.38×
      hyperbolic
      		 5,197 438,972 84.47×
      logmath
      		 5,646 470,677 83.36×
      matrix
      		 9,371 578,299 61.71×
      matrix-3d
      		 1,427 17,758 12.45×
      monte-carlo
      		 495.09 37,473 75.69×
      mpfr
      		 2,442 180,542 73.93×
      powmath
      		 1,839 156,979 85.38×
      trig
      		 2,337 186,899 79.96×
      veccmp
      		 30,425 2,256,996 74.18×
      vecfp
      		 2,400 189,040 78.76×
      vecmath
      		 4,789 402,704 84.10×
      vecshuf
      		 1,012 77,110 76.21×
      vecwide
      		 40,688 2,850,741 70.06×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 12.6 934.56 74.17×
      bsearch
      		 364.21 27,047 74.26×
      bubblesort
      		 1.2 77.4 64.50×
      fibsearch
      		 416.42 32,806 78.78×
      heapsort
      		 13.8 991.37 71.84×
      hsearch
      		 11,218 835,550 74.48×
      insertionsort
      		 9.6 754.4 78.58×
      malloc
      		 3,430,757 180,182,153 52.52×
      mcontend
      		 104.89 17,598 167.78×
      mergesort
      		 37.8 2,756 72.91×
      qsort
      		 26 1,911 73.51×
      skiplist
      		 7,977 619,935 77.71×
      tree
      		 2.6 137.78 52.99×
      MemorySingleMultiScaling
      cache
      		 1,029,708 1,718,153 1.67×
      cachehammer
      		 269,932 18,097,462 67.04×
      cacheline
      		 62.98 5,184 82.31×
      l1cache
      		 1,390 103,941 74.76×
      memcpy
      		 812.25 61,993 76.32×
      memrate
      		 0.99 31.65 31.97×
      memthrash
      		 304.89 3,005 9.86×
      ptr-chase
      		 74,431,933 875,997,125 11.77×
      spinmem
      		 1,026 22,710 22.14×
      stream
      		 130.65 168,831 1292.24×
      vm
      		 239,582 304,532 1.27×

      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

      INSTANCEvCPUsMEMORYAccelerators
      c8a.medium 12 GiB0
      c8a.large 24 GiB0
      c8a.xlarge 48 GiB0
      c8a.2xlarge 816 GiB0
      c8a.4xlarge 1632 GiB0
      c8a.8xlarge 3264 GiB0
      c8a.12xlarge 4896 GiB0

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      c8a.metal-24xl FAQs