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r8i-flex.12xlarge by Amazon Web Services

r8i-flex.12xlarge is a Memory optimized [Intel processors] Gen8 12xlarge server offered by Amazon Web Services with 48 vCPUs, 384 GiB of memory and 0 GB of storage. The pricing starts at 0.425 USD per hour.
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48 vCPU
384 GiB Memory
Spare SCore
52010
(All-cores)
2131
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8i-flex.12xlarge
Description
Memory optimized [Intel processors] Gen8 12xlarge
Family
r8i-flex
Status
active
Observed At
2026-06-13T15:29:55.574103

Availability

REGION / IDSPOTONDEMAND
United Arab Emirates / me-central-1
0.6465 USD/h -
Ohio (US) / us-east-2
0.7901 USD/h 3.1673 USD/h
Northern Virgina (US) / us-east-1
1.1988 USD/h 3.1673 USD/h
Oregon (US) / us-west-2
1.2381 USD/h 3.1673 USD/h
(MY) / ap-southeast-5
1.0167 USD/h 3.2477 USD/h
Hyderabad (IN) / ap-south-2
1.038933 USD/h 3.2678 USD/h
Mumbai (IN) / ap-south-1
1.765633 USD/h 3.2678 USD/h
Quebec (CA) / ca-central-1
1.804867 USD/h 3.469 USD/h
California (US) / us-west-1
1.2196 USD/h 3.5191 USD/h
Aragón (ES) / eu-south-2
0.666667 USD/h 3.5443 USD/h
Dublin (IE) / eu-west-1
1.503267 USD/h 3.5443 USD/h
Paris (FR) / eu-west-3
0.9283 USD/h 3.7202 USD/h
London (GB) / eu-west-2
1.010967 USD/h 3.7202 USD/h
Sydney (AU) / ap-southeast-2
1.348967 USD/h 3.7958 USD/h
Frankfurt (DE) / eu-central-1
1.1784 USD/h 3.8208 USD/h
Tokyo (JP) / ap-northeast-1
1.054933 USD/h 3.8208 USD/h
Seoul (KR) / ap-northeast-2
1.167625 USD/h 3.8208 USD/h
Singapore (SG) / ap-southeast-1
1.654567 USD/h 3.8208 USD/h
(NZ) / ap-southeast-6
1.607 USD/h 3.9854 USD/h
Cape Town (ZA) / af-south-1
0.6748 USD/h 4.223 USD/h
Sao Paulo (BR) / sa-east-1
1.6118 USD/h 5.0525 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
24
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
1 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
2 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
48 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
24.4
Scalability
101.67
Hw Virt
-

System Resources and Accelerators

MEMORY
Memory Amount
384 GiB
Memory Amount Actual
384 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
      11.25 Gbps
      Network Speed Max
      22.5 Gbps
      Network Storage Speed Baseline
      7.5 Gbps
      Network Storage Speed Max
      15 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: 2,188

      Geekbench Multi-Core

      Score: 19,389

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		69285
      Compression
      		959084
      Encryption
      		54844
      Extended Instructions
      		67745
      Floating Point Maths
      		179729
      Integer Maths
      		248115
      Physics
      		8108
      Prime Numbers
      		479
      Single Threaded
      		3276
      String Sorting
      		124070

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		2475
      Database Operations
      		23204
      Memory Latency
      		69
      Memory Read Cached
      		28780
      Memory Read Uncached
      		10131
      Memory Write
      		10892

      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.16xlarge 64512 GiB0

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      r8i-flex.12xlarge FAQs