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r3.8xlarge by Amazon Web Services

r3.8xlarge is a Memory optimized Gen3 8xlarge server offered by Amazon Web Services with 32 vCPUs, 244 GiB of memory and 640 GB of storage. The pricing starts at 0.3316 USD per hour.
32 vCPU
244 GiB Memory
640 GB Storage
Spare SCore
26824
(All-cores)
1283
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r3.8xlarge
Description
Memory optimized Gen3 8xlarge
Family
r3
Hw Virt
Status
active
Observed At
2026-08-06T11:28:21.528378

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.809733 USD/h 2.656 USD/h
Northern Virgina (US) / us-east-1
0.851925 USD/h 2.66 USD/h
Oregon (US) / us-west-2
0.879967 USD/h 2.66 USD/h
California (US) / us-west-1
0.8657 USD/h 2.964 USD/h
Dublin (IE) / eu-west-1
1.088733 USD/h 2.964 USD/h
Mumbai (IN) / ap-south-1
0.46615 USD/h 3.032 USD/h
Tokyo (JP) / ap-northeast-1
0.7594 USD/h 3.192 USD/h
Sydney (AU) / ap-southeast-2
1.045533 USD/h 3.192 USD/h
Seoul (KR) / ap-northeast-2
1.0998 USD/h 3.192 USD/h
Singapore (SG) / ap-southeast-1
1.4892 USD/h 3.192 USD/h
Frankfurt (DE) / eu-central-1
1.40975 USD/h 3.201 USD/h
Sao Paulo (BR) / sa-east-1
0.7024 USD/h 5.597 USD/h

Processor

vCPUs
32
Hypervisor
xen
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
E5-2670 v2
CPU L1D Cache
32 KiB
CPU L1D Cache Total
512 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
256 KiB
CPU L2 Cache Total
4 MiB
CPU L3 Cache
25 MiB
CPU L3 Cache Total
50 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, ht, syscall, nx, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, cpuid, tsc_known_freq, pni, pclmulqdq, ssse3, cx16, pcid, sse4_1, sse4_2, x2apic, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, pti, fsgsbase, smep, erms, xsaveopt
Ecpus
20.9
Scalability
130.62

System Resources and Accelerators

MEMORY
Memory Amount
244 GiB
Memory Amount Actual
244 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    640 GB
    Storage Type
    nvme ssd
    Storages
    • 320 GB nvme ssd
    • 320 GB nvme ssd
    NETWORK
    Network Speed Baseline
    5 Gbps
    Network Speed Max
    10 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized virtual server featuring thirty-two vCPUs, substantial memory capacity, and local NVMe SSD storage for database and caching workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r3.8xlarge is a memory-optimized virtual server instance running on the Xen hypervisor. It is powered by a dedicated Intel Xeon E5-2670 v2 processor with 16 physical cores and 32 vCPUs running at 2.5 GHz. The instance features 244.0 GB of memory, a 640 GB NVMe SSD for local storage, and a baseline network bandwidth of 5 Gbps. Benchmark data shows weak single-core performance, with a Geekbench single-core score of 702.0, but average multi-core capabilities, including a PassMark CPU score of 24081.11 and 10.08 million Redis SET operations per second. Memory bandwidth is stable, reaching 110.4 GB/sec for large-block reads. Given its high memory-to-vCPU ratio and local NVMe storage, the r3.8xlarge is well-suited for memory-intensive workloads, database operations, caching systems, and multi-threaded data processing.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.946Score
    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) 2,031,454 ops/sec 1,910,660 ops/sec 1.06 50.00% 50.00% +2.96%
    Redis RPS (pipeline=16, SET) 8,026,376 ops/sec 11,608,287 ops/sec 0.691 20.00% 20.00% -7.13%
    PassMark Memory Mark (composite) 2,553 2,416 1.06 10.00% 10.00% +0.58%
    Memory bandwidth (read, 16 MB ~ L3) 116,954 MB/sec 107,896 MB/sec 1.08 10.00% 10.00% +0.77%
    PassMark single-thread CPU 1,828 Mops/s 2,364 Mops/s 0.773 10.00% 10.00% -2.54%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 702

    Geekbench Multi-Core

    Score: 6,940

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 24081
    Compression
    		 401495
    Encryption
    		 12391
    Extended Instructions
    		 15231
    Floating Point Maths
    		 48913
    Integer Maths
    		 89192
    Physics
    		 2249
    Prime Numbers
    		 125
    Single Threaded
    		 1828
    String Sorting
    		 48190

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2553
    Database Operations
    		 10301
    Memory Latency
    		 55
    Memory Read Cached
    		 22034
    Memory Read Uncached
    		 10572
    Memory Write
    		 9977

    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
    r3.large 215 GiB0
    r3.xlarge 431 GiB0
    r3.2xlarge 861 GiB0
    r3.4xlarge 16122 GiB0

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    r3.8xlarge FAQs