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r6idn.8xlarge by Amazon Web Services

r6idn.8xlarge is a Memory optimized [Intel processors] [Instance store volumes] [Network and EBS optimized] Gen6 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 1.9 TB of storage. The pricing starts at 0.4636 USD per hour.
32 vCPU
256 GiB Memory
1.9 TB Storage
Spare SCore
30967
(All-cores)
1893
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6idn.8xlarge
Description
Memory optimized [Intel processors] [Instance store volumes] [Network and EBS optimized] Gen6 8xlarge
Family
r6idn
Hw Virt
Status
active
Observed At
2026-07-27T02:53:59.098639

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.989267 USD/h 3.1262 USD/h
Northern Virgina (US) / us-east-1
1.51032 USD/h 3.1262 USD/h
Oregon (US) / us-west-2
1.522033 USD/h 3.1262 USD/h
Stockholm (SE) / eu-north-1
0.827833 USD/h 3.3134 USD/h
Quebec (CA) / ca-central-1
1.1662 USD/h 3.4389 USD/h
Dublin (IE) / eu-west-1
1.8263 USD/h 3.4819 USD/h
Paris (FR) / eu-west-3
1.281567 USD/h 3.6691 USD/h
Frankfurt (DE) / eu-central-1
1.205733 USD/h 3.7253 USD/h
Singapore (SG) / ap-southeast-1
1.017933 USD/h 3.744 USD/h
Tokyo (JP) / ap-northeast-1
0.886667 USD/h 3.8002 USD/h
Sydney (AU) / ap-southeast-2
1.278333 USD/h 3.8189 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
3.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8375C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
768 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
20 MiB
CPU L3 Cache
54 MiB
CPU L3 Cache Total
54 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, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, 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, wbnoinvd, ida, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, rdpid, md_clear, flush_l1d, arch_capabilities
Ecpus
16.4
Scalability
102.5

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 GiB
Memory Generation
DDR4
Memory Speed
3200 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    1900 GB
    Storage Type
    nvme ssd
    Storages
    • 1900 GB nvme ssd
    NETWORK
    Network Speed Baseline
    50 Gbps
    Network Speed Max
    50 Gbps
    Network Storage Speed Baseline
    25 Gbps
    Network Storage Speed Max
    25 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized x86 platform featuring dedicated Intel Xeon processors, high-speed local NVMe storage, and 50 Gbps baseline network bandwidth.

    Memory OptimizedStorage & Database

    The Amazon Web Services r6idn.8xlarge is a memory-optimized instance featuring 32 vCPUs and 16 physical cores powered by an Intel Xeon 8375C processor running at 3.5 GHz. It is configured with 256.0 GB of DDR4 memory, a 1900 GB local NVMe SSD, and a 50 Gbps baseline network interface. Benchmark results indicate average performance across standard compute and memory tests, with a Passmark CPU score of 36566.42 and a Redis SET throughput of 31.23 million operations per second. While it achieves a strong text generation speed of 307.77 tokens per second on a small 135M LLM, performance drops to a poor 2.25 tokens per second on a 70B model due to the absence of GPU acceleration. This instance is designed for memory-intensive applications, database operations, and high-throughput network tasks.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.79Score
    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) 4,293,343 ops/sec 1,896,415 ops/sec 2.26 50.00% 50.00% +50.30%
    Redis RPS (pipeline=16, SET) 22,177,852 ops/sec 11,539,523 ops/sec 1.92 20.00% 20.00% +13.90%
    PassMark Memory Mark (composite) 2,608 2,411 1.08 10.00% 10.00% +0.77%
    Memory bandwidth (read, 16 MB ~ L3) 153,497 MB/sec 107,368 MB/sec 1.43 10.00% 10.00% +3.64%
    PassMark single-thread CPU 2,365 Mops/s 2,363 Mops/s 1 10.00% 10.00% 0.00%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,656

    Geekbench Multi-Core

    Score: 14,084

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 36566
    Compression
    		 485782
    Encryption
    		 29142
    Extended Instructions
    		 28232
    Floating Point Maths
    		 68613
    Integer Maths
    		 134193
    Physics
    		 3486
    Prime Numbers
    		 187
    Single Threaded
    		 2365
    String Sorting
    		 68201

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2608
    Database Operations
    		 14776
    Memory Latency
    		 60
    Memory Read Cached
    		 24350
    Memory Read Uncached
    		 11771
    Memory Write
    		 10607

    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
    r6idn.large 216 GiB0
    r6idn.xlarge 432 GiB0
    r6idn.2xlarge 864 GiB0
    r6idn.4xlarge 16128 GiB0
    r6idn.12xlarge 48384 GiB0
    r6idn.16xlarge 64512 GiB0
    r6idn.24xlarge 96768 GiB0

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    r6idn.8xlarge FAQs