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r8i-flex.16xlarge by Amazon Web Services

r8i-flex.16xlarge is a Memory optimized [Intel processors] Gen8 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 0 GB of storage. The pricing starts at 0.5631 USD per hour.
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64 vCPU
512 GiB Memory
Spare SCore
69310
(All-cores)
2131
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8i-flex.16xlarge
Description
Memory optimized [Intel processors] Gen8 16xlarge
Family
r8i-flex
Hw Virt
-
Status
active
Observed At
2026-06-15T18:10:24.369320

Availability

REGION / IDSPOTONDEMAND
United Arab Emirates / me-central-1
0.72015 USD/h -
Ohio (US) / us-east-2
0.955067 USD/h 4.223 USD/h
Northern Virgina (US) / us-east-1
1.16562 USD/h 4.223 USD/h
Oregon (US) / us-west-2
1.59325 USD/h 4.223 USD/h
(MY) / ap-southeast-5
1.3844 USD/h 4.3302 USD/h
Mumbai (IN) / ap-south-1
1.269633 USD/h 4.3571 USD/h
Hyderabad (IN) / ap-south-2
1.243767 USD/h 4.3571 USD/h
Quebec (CA) / ca-central-1
1.044833 USD/h 4.6253 USD/h
California (US) / us-west-1
1.31225 USD/h 4.6922 USD/h
Aragón (ES) / eu-south-2
0.909967 USD/h 4.7258 USD/h
Dublin (IE) / eu-west-1
1.8028 USD/h 4.7258 USD/h
Paris (FR) / eu-west-3
1.001733 USD/h 4.9603 USD/h
London (GB) / eu-west-2
1.564767 USD/h 4.9603 USD/h
Sydney (AU) / ap-southeast-2
1.2501 USD/h 5.0611 USD/h
Frankfurt (DE) / eu-central-1
1.813667 USD/h 5.0944 USD/h
Tokyo (JP) / ap-northeast-1
1.504233 USD/h 5.0944 USD/h
Seoul (KR) / ap-northeast-2
1.339825 USD/h 5.0944 USD/h
Singapore (SG) / ap-southeast-1
2.2007 USD/h 5.0944 USD/h
(NZ) / ap-southeast-6
1.859433 USD/h 5.3139 USD/h
Cape Town (ZA) / af-south-1
0.742133 USD/h 5.6307 USD/h
Sao Paulo (BR) / sa-east-1
0.9895 USD/h 6.7366 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
101.56

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
512 GiB
Memory Generation
DDR5
Memory Speed
7200 Mhz
GPU
GPU Count
0
GPU Memory Total
0 MiB
GPUs
    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

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,181

      Geekbench Multi-Core

      Score: 20,357

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		82965
      Compression
      		1272039
      Encryption
      		72453
      Extended Instructions
      		88635
      Floating Point Maths
      		239443
      Integer Maths
      		330600
      Physics
      		9106
      Prime Numbers
      		532
      Single Threaded
      		3280
      String Sorting
      		163614

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		2470
      Database Operations
      		28528
      Memory Latency
      		68
      Memory Read Cached
      		28284
      Memory Read Uncached
      		9629
      Memory Write
      		11219

      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

      INSTANCEvCPUsMEMORYGPUs
      r8i-flex.large 216 GiB0
      r8i-flex.xlarge 432 GiB0
      r8i-flex.2xlarge 864 GiB0
      r8i-flex.4xlarge 16128 GiB0
      r8i-flex.8xlarge 32256 GiB0
      r8i-flex.12xlarge 48384 GiB0

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      r8i-flex.16xlarge FAQs