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r8i-flex.large by Amazon Web Services

r8i-flex.large is a Memory optimized [Intel processors] Gen8 large server offered by Amazon Web Services with 2 vCPUs, 16 GiB of memory and 0 GB of storage. The pricing starts at 0.0243 USD per hour.
2 vCPU
16 GiB Memory
Spare SCore
2164
(All-cores)
2129
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8i-flex.large
Description
Memory optimized [Intel processors] Gen8 large
Family
r8i-flex
Hw Virt
Status
active
Observed At
2026-08-08T07:13:21.988258

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.0385 USD/h 0.132 USD/h
Oregon (US) / us-west-2
0.04775 USD/h 0.132 USD/h
Northern Virgina (US) / us-east-1
0.0542 USD/h 0.132 USD/h
(MY) / ap-southeast-5
0.043767 USD/h 0.1353 USD/h
Mumbai (IN) / ap-south-1
0.027967 USD/h 0.1362 USD/h
Hyderabad (IN) / ap-south-2
0.038833 USD/h 0.1362 USD/h
Stockholm (SE) / eu-north-1
0.0425 USD/h 0.1404 USD/h
Quebec (CA) / ca-central-1
0.055433 USD/h 0.1445 USD/h
California (US) / us-west-1
0.04735 USD/h 0.1466 USD/h
Aragón (ES) / eu-south-2
0.032033 USD/h 0.1477 USD/h
Dublin (IE) / eu-west-1
0.0675 USD/h 0.1477 USD/h
Paris (FR) / eu-west-3
0.0486 USD/h 0.155 USD/h
London (GB) / eu-west-2
0.053167 USD/h 0.155 USD/h
Milan (IT) / eu-south-1
0.061567 USD/h 0.155 USD/h
Sydney (AU) / ap-southeast-2
0.059933 USD/h 0.1582 USD/h
Seoul (KR) / ap-northeast-2
0.044275 USD/h 0.1592 USD/h
Tokyo (JP) / ap-northeast-1
0.048267 USD/h 0.1592 USD/h
Singapore (SG) / ap-southeast-1
0.056367 USD/h 0.1592 USD/h
Frankfurt (DE) / eu-central-1
0.062333 USD/h 0.1592 USD/h
(NZ) / ap-southeast-6
0.048 USD/h 0.1661 USD/h
Zurich (CH) / eu-central-2
0.059767 USD/h 0.1751 USD/h
Cape Town (ZA) / af-south-1
0.030567 USD/h 0.176 USD/h
Sao Paulo (BR) / sa-east-1
0.081933 USD/h 0.2105 USD/h

Processor

vCPUs
2
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
1
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
48 KiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
64 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
2 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
1
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
16 GiB
Memory Amount Actual
16 GiB
Memory Generation
DDR5
Memory Speed
7200 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      0.468 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      0.315 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An entry-level memory-optimized instance featuring DDR5 memory and strong single-core performance for lightweight, memory-intensive workloads.

      Memory Optimized

      Amazon Web Services r8i-flex.large is a memory-optimized instance featuring 2 vCPUs (1 physical core) powered by an Intel Xeon 6975P-C processor running at 3.9 GHz. Built on the Nitro hypervisor, it includes 16.0 GB of DDR5 memory at 7 GHz, offering 8.0 GB of RAM per core, but lacks local storage and dedicated GPUs. Performance benchmarks show strong single-core execution, highlighted by a Geekbench single-core score of 2159.0 and strong single-threaded compression results. However, multi-core and memory bandwidth metrics are comparatively weak, with a stress-ng multi-core rating in the bottom 10%. This resource profile makes the instance a qualitatively cost-efficient option for memory-sensitive, single-threaded tasks, such as text processing or small-scale database operations, where massive parallel compute is unnecessary.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.311Score
      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) 438,357 ops/sec 1,910,660 ops/sec 0.229 50.00% 50.00% -52.10%
      Redis RPS (pipeline=16, SET) 2,461,066 ops/sec 11,608,287 ops/sec 0.212 20.00% 20.00% -26.70%
      PassMark Memory Mark (composite) 1,878 2,416 0.777 10.00% 10.00% -2.49%
      Memory bandwidth (read, 16 MB ~ L3) 29,781 MB/sec 107,896 MB/sec 0.276 10.00% 10.00% -12.10%
      PassMark single-thread CPU 3,251 Mops/s 2,364 Mops/s 1.37 10.00% 10.00% +3.20%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,159

      Geekbench Multi-Core

      Score: 2,719

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 4102
      Compression
      		 40728
      Encryption
      		 2279
      Extended Instructions
      		 2747
      Floating Point Maths
      		 7472
      Integer Maths
      		 10293
      Physics
      		 507
      Prime Numbers
      		 23
      Single Threaded
      		 3251
      String Sorting
      		 5423

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1878
      Database Operations
      		 1556
      Memory Latency
      		 74
      Memory Read Cached
      		 28954
      Memory Read Uncached
      		 13135
      Memory Write
      		 11593

      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.xlarge 432 GiB0
      r8i-flex.2xlarge 864 GiB0
      r8i-flex.4xlarge 16128 GiB0
      r8i-flex.8xlarge 32256 GiB0
      r8i-flex.12xlarge 48384 GiB0
      r8i-flex.16xlarge 64512 GiB0

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      r8i-flex.large FAQs