c8i.48xlarge by Amazon Web Services

c8i.48xlarge is a Compute optimized [Intel processors] Gen8 48xlarge server offered by Amazon Web Services with 192 vCPUs, 384 GiB of memory and 0 GB of storage. The pricing starts at 0.8817 USD per hour.
192 vCPU
384 GiB Memory
Spare SCore
207,553
(All-cores)
2,119
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8i.48xlarge
Description
Compute optimized [Intel processors] Gen8 48xlarge
Family
c8i
Hw Virt
Average Time To Start
7.5
Status
active
Observed At
2026-10-28T23:25:16.747609

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
0.967033 USD/h 8.8166 USD/h
Hyderabad (IN) / ap-south-2
0.8996 USD/h 8.9962 USD/h
Mumbai (IN) / ap-south-1
1.986133 USD/h 8.9962 USD/h
Northern Virgina (US) / us-east-1
4.06538 USD/h 8.9962 USD/h
Ohio (US) / us-east-2
3.2047 USD/h 8.9962 USD/h
Oregon (US) / us-west-2
4.112675 USD/h 8.9962 USD/h
Stockholm (SE) / eu-north-1
1.775167 USD/h 9.6317 USD/h
Aragón (ES) / eu-south-2
4.8696 USD/h 9.6518 USD/h
Dublin (IE) / eu-west-1
4.108067 USD/h 9.6528 USD/h
Quebec (CA) / ca-central-1
3.204467 USD/h 9.8429 USD/h
Seoul (KR) / ap-northeast-2
1.423575 USD/h 10.1606 USD/h
Frankfurt (DE) / eu-central-1
3.3206 USD/h 10.2662 USD/h
Singapore (SG) / ap-southeast-1
3.498633 USD/h 10.3728 USD/h
London (GB) / eu-west-2
1.1851 USD/h 10.6896 USD/h
Paris (FR) / eu-west-3
5.213833 USD/h 10.6896 USD/h
California (US) / us-west-1
2.28145 USD/h 11.2186 USD/h
Tokyo (JP) / ap-northeast-1
2.330067 USD/h 11.3251 USD/h
Sydney (AU) / ap-southeast-2
3.4152 USD/h 11.7485 USD/h
Cape Town (ZA) / af-south-1
2.213467 USD/h 12.0662 USD/h
(NZ) / ap-southeast-6
1.5426 USD/h 12.336 USD/h
Sao Paulo (BR) / sa-east-1
2.65235 USD/h 13.8653 USD/h

Processor

vCPUs
192
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
96
CPU Speed
3.9 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
6975P-C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
5 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
6 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
192 MiB
CPU L3 Cache
480 MiB
CPU L3 Cache Total
480 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, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pdcm, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, cpuid_fault, ssbd, ibrs, ibpb, stibp, ibrs_enhanced, 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, wbnoinvd, ida, arat, avx512vbmi, umip, pku, ospke, waitpkg, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, rdpid, bus_lock_detect, cldemote, movdiri, movdir64b, md_clear, serialize, amx_bf16, avx512_fp16, amx_tile, amx_int8, flush_l1d, arch_capabilities
Ecpus
97.9
Scalability
50.99

System Resources and Accelerators

MEMORY
Memory Amount
384 GiB
Memory Amount Actual
384 GiB
Memory Generation
DDR5
Memory Speed
7200 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
      75 Gbps
      Network Speed Max
      75 Gbps
      Network Storage Speed Baseline
      60 Gbps
      Network Storage Speed Max
      60 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A high-density, compute-optimized platform featuring 192 vCPUs and advanced matrix extensions for demanding parallel processing and database workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c8i.48xlarge is a compute-optimized instance featuring 192 vCPUs and 96 physical Intel Xeon 6975P-C cores running at 3.9 GHz on the x86_64 architecture. Built on the AWS Nitro hypervisor, it includes 384.0 GB of DDR5 memory at 7 GHz but lacks local storage and GPUs. The instance delivers top-tier multi-core CPU performance, memory bandwidth, and database operations, supported by advanced instruction sets like AVX-512 and Intel AMX. While single-core performance is moderate, its massive parallel processing capabilities and 75 Gbps baseline network bandwidth make it highly efficient for multi-threaded workloads. It is best suited for high-performance computing, software compilation, large-scale database operations, and LLM inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      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) 32,944,212 ops/sec 1,919,289 ops/sec 17 50.00% 50.00% +310.00%
      Redis RPS (pipeline=16, SET) 177,893,007 ops/sec 11,728,058 ops/sec 15 20.00% 20.00% +72.00%
      PassMark Memory Mark (composite) 2,859 2,416 1.2 10.00% 10.00% +1.80%
      Memory bandwidth (read, 16 MB ~ L3) 690,217 MB/sec 108,466 MB/sec 6.3 10.00% 10.00% +20.00%
      PassMark single-thread CPU 3,259 Mops/s 2,365 Mops/s 1.4 10.00% 10.00% +3.40%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,200

      Geekbench Multi-Core

      Score: 23,119

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 143,523
      Compression
      		 3,508,901
      Encryption
      		 206,278
      Extended Instructions
      		 236,989
      Floating Point Maths
      		 716,725
      Integer Maths
      		 989,682
      Physics
      		 27,574
      Prime Numbers
      		 1,611
      Single Threaded
      		 3,259
      String Sorting
      		 449,986

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,859
      Database Operations
      		 36,430
      Memory Latency
      		 65
      Memory Read Cached
      		 28,526
      Memory Read Uncached
      		 17,859
      Memory Write
      		 11,898

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 151.83 88.98 0.59×
      bitops
      		 163,388 18,208,386 111.44×
      branch
      		 153,015 24,006,539 156.89×
      funccall
      		 848.23 104,548 123.25×
      funcret
      		 13,892 2,073,912 149.29×
      hash
      		 187,608 26,560,189 141.57×
      intmath
      		 70,308 8,277,849 117.74×
      nop
      		 287,064 29,811,725 103.85×
      prime
      		 521,744 60,905,725 116.73×
      rotate
      		 108,250 18,444,005 170.38×
      str
      		 1,097,299 134,068,873 122.18×
      wcs
      		 809,341 79,285,670 97.96×
      CryptographySingleMultiScaling
      crypt
      		 3,698 431,733 116.76×
      CompressionSingleMultiScaling
      jpeg
      		 906.61 101,808 112.29×
      zlib
      		 57.54 10,328 179.49×
      HypervisorSingleMultiScaling
      clock
      		 26,603 315,138 11.85×
      clone
      		 443.01 33,807 76.31×
      context
      		 5,793 930,108 160.55×
      cpu-sched
      		 56.74 11,217 197.70×
      eventfd
      		 164,305 1,671,536 10.17×
      fault
      		 34,337 240,352 7.00×
      fork
      		 3,595 84,335 23.46×
      getrandom
      		 63,549 8,820,746 138.80×
      hrtimers
      		 1,596,338 23,614,977 14.79×
      mprotect
      		 719,680 15,465,110 21.49×
      mtx
      		 21,992,175 6,215,292,960 282.61×
      munmap
      		 2,963 87,410 29.50×
      null
      		 996,450 150,682,422 151.22×
      pipe
      		 735,633 129,567,895 176.13×
      priv-instr
      		 895,208 10,033,556 11.21×
      resched
      		 12,339,075 32,612,677 2.64×
      switch
      		 271,052 37,944,055 139.99×
      timermix
      		 209,801 30,147,304 143.69×
      tlb-shootdown
      		 7,883 239,789 30.42×
      tsc
      		 631,915 98,616,472 156.06×
      usersyscall
      		 760,355 9,764,919 12.84×
      vdso
      		 95,427,290 14,088,264,304 147.63×
      vfork
      		 17,380 182,272 10.49×
      x86syscall
      		 10,940,939 1,775,293,492 162.26×
      yield
      		 258,324,947 263,548,566 1.02×
      zero
      		 6,971,750 1,067,194,250 153.07×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 18,029 2,180,867 120.97×
      expmath
      		 3,836 533,690 139.12×
      fma
      		 1,310,642 169,134,152 129.05×
      fp
      		 213.22 31,500 147.73×
      fractal
      		 7.6 1,012 133.22×
      hyperbolic
      		 4,455 618,694 138.86×
      logmath
      		 5,668 867,944 153.13×
      matrix
      		 5,641 602,618 106.83×
      matrix-3d
      		 618.41 25,360 41.01×
      monte-carlo
      		 322.75 49,157 152.31×
      mpfr
      		 1,909 211,504 110.82×
      powmath
      		 2,142 316,056 147.55×
      trig
      		 3,002 356,398 118.72×
      veccmp
      		 26,859 2,807,451 104.53×
      vecfp
      		 1,657 204,977 123.68×
      vecmath
      		 4,258 566,032 132.93×
      vecshuf
      		 888.02 96,448 108.61×
      vecwide
      		 36,815 3,676,290 99.86×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 10.6 1,229 115.90×
      bsearch
      		 341.24 38,893 113.98×
      bubblesort
      		 1.2 115.59 96.33×
      fibsearch
      		 329.8 39,143 118.69×
      heapsort
      		 10.8 1,357 125.60×
      hsearch
      		 9,532 1,003,623 105.29×
      insertionsort
      		 14 1,344 96.03×
      malloc
      		 2,868,439 129,389,441 45.11×
      mcontend
      		 71.94 32,978 458.41×
      mergesort
      		 33.4 4,348 130.19×
      qsort
      		 23.8 3,015 126.69×
      skiplist
      		 6,985 1,023,096 146.48×
      tree
      		 1.6 153.12 95.70×
      MemorySingleMultiScaling
      cache
      		 300,245 8,115,470 27.03×
      cachehammer
      		 164,679 7,770,705 47.19×
      cacheline
      		 32.58 2,444 75.00×
      l1cache
      		 808.71 26,620 32.92×
      memcpy
      		 762.22 74,903 98.27×
      memrate
      		 0.13 20.28 156.00×
      memthrash
      		 397.09 1,991 5.01×
      ptr-chase
      		 27,756,506 1,283,103,771 46.23×
      spinmem
      		 221.79 9,683 43.66×
      stream
      		 1.37 5,759 4203.65×
      vm
      		 152,523 311,493 2.04×

      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
      c8i.large 24 GiB0
      c8i.xlarge 48 GiB0
      c8i.2xlarge 816 GiB0
      c8i.4xlarge 1632 GiB0
      c8i.8xlarge 3264 GiB0
      c8i.12xlarge 4896 GiB0
      c8i.16xlarge 64128 GiB0

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      c8i.48xlarge FAQs