c6a.2xlarge by Amazon Web Services

c6a.2xlarge is a Compute optimized [AMD processors] Gen6 2xlarge server offered by Amazon Web Services with 8 vCPUs, 16 GiB of memory and 0 GB of storage. The pricing starts at 0.0303 USD per hour.
8 vCPU
16 GiB Memory
Spare SCore
11,962
(All-cores)
2,992
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c6a.2xlarge
Description
Compute optimized [AMD processors] Gen6 2xlarge
Family
c6a
Hw Virt
Status
active
Observed At
2026-10-27T03:24:27.061992

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.0377 USD/h 0.187 USD/h
Mumbai (IN) / ap-south-1
0.098867 USD/h 0.187 USD/h
Ohio (US) / us-east-2
0.1174 USD/h 0.306 USD/h
Oregon (US) / us-west-2
0.16995 USD/h 0.306 USD/h
Northern Virgina (US) / us-east-1
0.14658 USD/h 0.306 USD/h
Dublin (IE) / eu-west-1
0.1952 USD/h 0.3283 USD/h
Quebec (CA) / ca-central-1
0.157967 USD/h 0.3348 USD/h
Frankfurt (DE) / eu-central-1
0.173733 USD/h 0.3492 USD/h
Singapore (SG) / ap-southeast-1
0.19 USD/h 0.3528 USD/h
London (GB) / eu-west-2
0.149033 USD/h 0.3636 USD/h
California (US) / us-west-1
0.18165 USD/h 0.3816 USD/h
Tokyo (JP) / ap-northeast-1
0.203633 USD/h 0.3852 USD/h
Hong Kong (HK) / ap-east-1
0.1249 USD/h 0.3888 USD/h
Sydney (AU) / ap-southeast-2
0.2014 USD/h 0.3996 USD/h
Sao Paulo (BR) / sa-east-1
0.1057 USD/h 0.4716 USD/h

Processor

vCPUs
8
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
4
CPU Speed
3.6 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7R13
CPU L1D Cache
32 KiB
CPU L1D Cache Total
128 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
2 MiB
CPU L3 Cache
16 MiB
CPU L3 Cache Total
16 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, 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, ssbd, ibrs, ibpb, stibp, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, invpcid, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, rdpru, wbnoinvd, arat, npt, nrip_save, vaes, vpclmulqdq, rdpid
Ecpus
4
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
16 GiB
Memory Amount Actual
16 GiB
Memory Generation
DDR4
Memory Speed
2933 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
      3.125 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      2.5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      An AMD-powered compute-optimized instance offering dedicated vCPUs and strong single-core performance for processing-heavy workloads without local storage requirements.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c6a.2xlarge is a compute-optimized instance featuring 8 dedicated vCPUs and 16.0 GB of DDR4 memory. Powered by an AMD EPYC 7R13 processor running at 3.6 GHz on the Nitro hypervisor, this x86_64 server delivers strong single-core CPU performance. It lacks local storage and GPU accelerators, relying on a 3 Gbps baseline network connection. While multi-core execution, software compilation, and web serving benchmarks show average performance, large-block memory bandwidth is a notable bottleneck, scoring in the bottom 25 percent. This resource profile makes the instance a cost-efficient choice for compute-bound workloads like web serving, single-threaded data compression, and moderate database operations that do not demand high memory throughput.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.48Score
      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) 709,440 ops/sec 1,918,343 ops/sec 0.37 50.00% 50.00% -39.00%
      Redis RPS (pipeline=16, SET) 5,272,408 ops/sec 11,704,734 ops/sec 0.44 20.00% 20.00% -15.00%
      PassMark Memory Mark (composite) 2,249 2,416 0.92 10.00% 10.00% -0.83%
      Memory bandwidth (read, 16 MB ~ L3) 49,858 MB/sec 108,420 MB/sec 0.45 10.00% 10.00% -7.70%
      PassMark single-thread CPU 2,644 Mops/s 2,365 Mops/s 1.1 10.00% 10.00% +0.96%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,670

      Geekbench Multi-Core

      Score: 6,393

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 13,110
      Compression
      		 144,551
      Encryption
      		 9,533
      Extended Instructions
      		 8,157
      Floating Point Maths
      		 20,257
      Integer Maths
      		 36,783
      Physics
      		 1,408
      Prime Numbers
      		 81
      Single Threaded
      		 2,644
      String Sorting
      		 19,555

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,249
      Database Operations
      		 3,732
      Memory Latency
      		 66
      Memory Read Cached
      		 26,482
      Memory Read Uncached
      		 17,209
      Memory Write
      		 16,863

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 278.19 266.28 0.96×
      bitops
      		 156,632 723,200 4.62×
      branch
      		 182,330 1,333,311 7.31×
      funccall
      		 598.93 3,101 5.18×
      funcret
      		 18,631 96,684 5.19×
      hash
      		 149,832 916,069 6.11×
      intmath
      		 64,419 350,248 5.44×
      nop
      		 313,975 1,262,472 4.02×
      prime
      		 431,692 2,130,133 4.93×
      rotate
      		 85,525 342,002 4.00×
      str
      		 962,094 4,530,694 4.71×
      wcs
      		 636,782 2,871,753 4.51×
      CryptographySingleMultiScaling
      crypt
      		 3,580 14,172 3.96×
      CompressionSingleMultiScaling
      jpeg
      		 770.98 4,324 5.61×
      zlib
      		 63.73 389.22 6.11×
      HypervisorSingleMultiScaling
      clock
      		 17,544 96,995 5.53×
      clone
      		 297.29 1,013 3.41×
      context
      		 2,155 12,122 5.63×
      cpu-sched
      		 56.57 518.06 9.16×
      eventfd
      		 32,320 443,293 13.72×
      fault
      		 8,468 55,121 6.51×
      fork
      		 4,072 24,781 6.09×
      getrandom
      		 47,411 240,799 5.08×
      hrtimers
      		 135,184 602,315 4.46×
      mprotect
      		 1,053,360 1,232,261 1.17×
      mtx
      		 36,049,727 385,855,193 10.70×
      munmap
      		 2,691 17,184 6.39×
      null
      		 228,125 1,251,700 5.49×
      pipe
      		 1,283,874 2,612,465 2.03×
      priv-instr
      		 388,692 2,292,088 5.90×
      resched
      		 1,314,881 456,993 0.35×
      switch
      		 51,085 1,170,021 22.90×
      timermix
      		 147,255 888,461 6.03×
      tlb-shootdown
      		 17,752 26,940 1.52×
      tsc
      		 741,197 5,695,149 7.68×
      usersyscall
      		 249,265 1,490,737 5.98×
      vdso
      		 87,043,872 568,990,107 6.54×
      vfork
      		 27,803 131,926 4.75×
      x86syscall
      		 2,739,459 14,452,415 5.28×
      yield
      		 3,720,237 3,620,521 0.97×
      zero
      		 1,750,343 9,389,007 5.36×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 15,754 65,386 4.15×
      expmath
      		 2,917 18,280 6.27×
      fma
      		 864,325 5,410,945 6.26×
      fp
      		 252 1,456 5.78×
      fractal
      		 7.4 49.4 6.68×
      hyperbolic
      		 3,640 22,117 6.08×
      logmath
      		 4,291 24,605 5.73×
      matrix
      		 2,997 17,890 5.97×
      matrix-3d
      		 870.27 1,653 1.90×
      monte-carlo
      		 128.46 687.63 5.35×
      mpfr
      		 1,553 7,541 4.86×
      powmath
      		 1,332 8,738 6.56×
      trig
      		 1,651 10,209 6.18×
      veccmp
      		 17,684 93,206 5.27×
      vecfp
      		 1,638 8,991 5.49×
      vecmath
      		 3,784 24,427 6.45×
      vecshuf
      		 591.19 2,751 4.65×
      vecwide
      		 26,218 133,148 5.08×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 9.6 40.4 4.21×
      bsearch
      		 288.11 1,529 5.31×
      bubblesort
      		 0.8 4.8 6.00×
      fibsearch
      		 355.63 1,687 4.74×
      heapsort
      		 10.2 51.6 5.06×
      hsearch
      		 8,179 38,021 4.65×
      insertionsort
      		 12.8 51.2 4.00×
      malloc
      		 3,101,258 21,836,401 7.04×
      mcontend
      		 262.28 1,742 6.64×
      mergesort
      		 30.4 178.59 5.87×
      qsort
      		 21.2 116.6 5.50×
      skiplist
      		 6,856 41,559 6.06×
      tree
      		 1.8 8 4.44×
      MemorySingleMultiScaling
      cache
      		 841,709 2,118,767 2.52×
      cachehammer
      		 289,497 2,132,353 7.37×
      cacheline
      		 36.47 323.67 8.87×
      l1cache
      		 181.36 684.15 3.77×
      memcpy
      		 405.29 1,541 3.80×
      memrate
      		 2.34 4.59 1.96×
      memthrash
      		 112.73 320.2 2.84×
      ptr-chase
      		 36,055,752 69,260,264 1.92×
      spinmem
      		 211.79 226.57 1.07×
      stream
      		 206.93 2,635 12.73×
      vm
      		 69,363 291,369 4.20×

      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
      c6a.large 24 GiB0
      c6a.xlarge 48 GiB0
      c6a.4xlarge 1632 GiB0
      c6a.8xlarge 3264 GiB0
      c6a.12xlarge 4896 GiB0
      c6a.16xlarge 64128 GiB0
      c6a.24xlarge 96192 GiB0

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      c6a.2xlarge FAQs