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r3.xlarge by Amazon Web Services

r3.xlarge is a Memory optimized Gen3 xlarge server offered by Amazon Web Services with 4 vCPUs, 31 GiB of memory and 80 GB of storage. The pricing starts at 0.0592 USD per hour.
4 vCPU
31 GiB Memory
80 GB Storage
Spare SCore
3358
(All-cores)
1272
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r3.xlarge
Description
Memory optimized Gen3 xlarge
Family
r3
Hw Virt
Status
active
Observed At
2026-08-08T07:13:22.009059

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.103633 USD/h 0.332 USD/h
Oregon (US) / us-west-2
0.111433 USD/h 0.333 USD/h
Northern Virgina (US) / us-east-1
0.1203 USD/h 0.333 USD/h
Dublin (IE) / eu-west-1
0.1484 USD/h 0.371 USD/h
California (US) / us-west-1
0.14225 USD/h 0.371 USD/h
Mumbai (IN) / ap-south-1
0.0637 USD/h 0.379 USD/h
Seoul (KR) / ap-northeast-2
0.113 USD/h 0.399 USD/h
Sydney (AU) / ap-southeast-2
0.132067 USD/h 0.399 USD/h
Tokyo (JP) / ap-northeast-1
0.1299 USD/h 0.399 USD/h
Singapore (SG) / ap-southeast-1
0.162 USD/h 0.399 USD/h
Frankfurt (DE) / eu-central-1
0.1477 USD/h 0.4 USD/h
Sao Paulo (BR) / sa-east-1
0.0854 USD/h 0.7 USD/h

Processor

vCPUs
4
Hypervisor
xen
CPU Allocation
Dedicated
CPU Cores
2
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
64 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
64 KiB
CPU L2 Cache
256 KiB
CPU L2 Cache Total
512 KiB
CPU L3 Cache
25 MiB
CPU L3 Cache Total
25 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
2.6
Scalability
130

System Resources and Accelerators

MEMORY
Memory Amount
31 GiB
Memory Amount Actual
31 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    80 GB
    Storage Type
    nvme ssd
    Storages
    • 80 GB nvme ssd
    NETWORK
    Network Speed Baseline
    0.7 Gbps
    Network Speed Max
    2.8 Gbps
    Network Storage Speed Baseline
    0.5 Gbps
    Network Storage Speed Max
    0.5 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized legacy instance featuring dedicated Intel Xeon processors and local NVMe storage for memory-centric workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r3.xlarge is a memory-optimized legacy instance featuring an Intel Xeon E5-2670 v2 processor with 4 dedicated vCPUs running at 2.5 GHz on an x86_64 architecture. It is configured with 30.0 GB of RAM, an 80 GB local NVMe SSD, and a 1 Gbps baseline network interface. Benchmark evaluations place its CPU performance in the bottom 25% and its Geekbench scores in the bottom 10%. However, its PassMark memory score remains average, highlighting its memory-centric design. Lacking modern instruction sets like AVX-512, this Xen-hypervised instance presents a clear tradeoff between high memory capacity and limited compute power. It is best utilized for legacy memory-intensive applications, moderate database operations, and caching workloads that do not require high CPU throughput.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.213Score
    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) 287,178 ops/sec 1,910,660 ops/sec 0.15 50.00% 50.00% -61.30%
    Redis RPS (pipeline=16, SET) 1,207,765 ops/sec 11,608,287 ops/sec 0.104 20.00% 20.00% -36.40%
    PassMark Memory Mark (composite) 2,089 2,416 0.865 10.00% 10.00% -1.44%
    Memory bandwidth (read, 16 MB ~ L3) 35,501 MB/sec 107,896 MB/sec 0.329 10.00% 10.00% -10.50%
    PassMark single-thread CPU 1,898 Mops/s 2,364 Mops/s 0.803 10.00% 10.00% -2.17%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 713

    Geekbench Multi-Core

    Score: 1,540

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 3850
    Compression
    		 52725
    Encryption
    		 1604
    Extended Instructions
    		 1886
    Floating Point Maths
    		 6320
    Integer Maths
    		 11496
    Physics
    		 562
    Prime Numbers
    		 26
    Single Threaded
    		 1898
    String Sorting
    		 6361

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2089
    Database Operations
    		 1362
    Memory Latency
    		 53
    Memory Read Cached
    		 22629
    Memory Read Uncached
    		 9957
    Memory Write
    		 9542

    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
    r3.2xlarge 861 GiB0
    r3.4xlarge 16122 GiB0
    r3.8xlarge 32244 GiB0

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    r3.xlarge FAQs