m8i-flex.16xlarge by Amazon Web Services

m8i-flex.16xlarge is a General purpose [Intel processors] Gen8 16xlarge server offered by Amazon Web Services with 64 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.3385 USD per hour.
64 vCPU
256 GiB Memory
Spare SCore
69,359
(All-cores)
2,134
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
m8i-flex.16xlarge
Description
General purpose [Intel processors] Gen8 16xlarge
Family
m8i-flex
Hw Virt
Status
active
Observed At
2026-10-26T14:19:35.630629

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
1.0037 USD/h 3.2176 USD/h
Ohio (US) / us-east-2
0.958933 USD/h 3.2176 USD/h
Oregon (US) / us-west-2
1.3363 USD/h 3.2176 USD/h
Hyderabad (IN) / ap-south-2
0.398533 USD/h 3.3853 USD/h
Mumbai (IN) / ap-south-1
0.9043 USD/h 3.3853 USD/h
(MY) / ap-southeast-5
1.8335 USD/h 3.4186 USD/h
Aragón (ES) / eu-south-2
1.4231 USD/h 3.5862 USD/h
Calgary (CA) / ca-west-1
1.22625 USD/h 3.5862 USD/h
Quebec (CA) / ca-central-1
2.827967 USD/h 3.5862 USD/h
Dublin (IE) / eu-west-1
1.748667 USD/h 3.5862 USD/h
London (GB) / eu-west-2
1.416167 USD/h 3.7203 USD/h
Paris (FR) / eu-west-3
2.940533 USD/h 3.7539 USD/h
California (US) / us-west-1
3.7539 USD/h 3.7539 USD/h
Frankfurt (DE) / eu-central-1
1.525533 USD/h 3.8544 USD/h
Seoul (KR) / ap-northeast-2
2.4867 USD/h 3.9552 USD/h
Singapore (SG) / ap-southeast-1
2.384733 USD/h 4.0221 USD/h
Sydney (AU) / ap-southeast-2
2.417733 USD/h 4.0221 USD/h
Tokyo (JP) / ap-northeast-1
3.496633 USD/h 4.1558 USD/h
(NZ) / ap-southeast-6
1.5335 USD/h 4.223 USD/h
Cape Town (ZA) / af-south-1
1.093733 USD/h 4.2566 USD/h
Sao Paulo (BR) / sa-east-1
1.287367 USD/h 5.128 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
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
2 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
2 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
64 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, rep_good, nopl, xtopology, nonstop_tsc, cpuid, tsc_known_freq, pni, pclmulqdq, 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
32.5
Scalability
50.78

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
      15 Gbps
      Network Speed Max
      30 Gbps
      Network Storage Speed Baseline
      10 Gbps
      Network Storage Speed Max
      20 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A balanced general-purpose server featuring 64 Intel vCPUs, DDR5 memory, and advanced matrix extensions for compute-intensive workloads.

      General Purpose

      Amazon Web Services m8i-flex.16xlarge is a general-purpose server powered by an Intel Xeon 6975P-C processor with 64 vCPUs, 32 physical cores, and 256.0 GB of DDR5 memory. Operating on the Nitro hypervisor, this x86_64 instance features a 3.9 GHz clock speed, a 480 MB L3 cache, and advanced instruction sets including AVX-512 and Intel AMX. It does not include local storage or GPUs, relying instead on network-attached storage and a baseline network bandwidth of 15 Gbps. Benchmarks show top-tier performance in static web serving and image processing, alongside strong multi-core execution and memory read bandwidth. However, single-core stress-ng performance and large-block memory write speeds remain average. This server is suited for database operations, web serving, software compilation, and large language model prompt processing.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      4.4Score
      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) 13,997,312 ops/sec 1,919,289 ops/sec 7.4 50.00% 50.00% +170.00%
      Redis RPS (pipeline=16, SET) 77,850,051 ops/sec 11,728,058 ops/sec 6.5 20.00% 20.00% +45.00%
      PassMark Memory Mark (composite) 2,567 2,416 1.1 10.00% 10.00% +0.96%
      Memory bandwidth (read, 16 MB ~ L3) 232,003 MB/sec 108,466 MB/sec 2.1 10.00% 10.00% +7.70%
      PassMark single-thread CPU 3,278 Mops/s 2,365 Mops/s 1.4 10.00% 10.00% +3.40%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,211

      Geekbench Multi-Core

      Score: 20,583

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 83,187
      Compression
      		 1,275,849
      Encryption
      		 72,786
      Extended Instructions
      		 88,707
      Floating Point Maths
      		 239,617
      Integer Maths
      		 330,831
      Physics
      		 9,381
      Prime Numbers
      		 546
      Single Threaded
      		 3,278
      String Sorting
      		 163,535

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,567
      Database Operations
      		 29,580
      Memory Latency
      		 66
      Memory Read Cached
      		 28,641
      Memory Read Uncached
      		 10,505
      Memory Write
      		 11,681

      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
      m8i-flex.large 28 GiB0
      m8i-flex.xlarge 416 GiB0
      m8i-flex.2xlarge 832 GiB0
      m8i-flex.4xlarge 1664 GiB0
      m8i-flex.8xlarge 32128 GiB0
      m8i-flex.12xlarge 48192 GiB0

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      m8i-flex.16xlarge FAQs