r3.4xlarge by Amazon Web Services

r3.4xlarge is a Memory optimized Gen3 4xlarge server offered by Amazon Web Services with 16 vCPUs, 122 GiB of memory and 320 GB of storage. The pricing starts at 0.2449 USD per hour.
16 vCPU
122 GiB Memory
320 GB Storage
Spare SCore
13,891
(All-cores)
1,323
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r3.4xlarge
Description
Memory optimized Gen3 4xlarge
Family
Memory Optimized
Series
r3
Hw Virt
Status
active
Observed At
2026-11-14T01:02:04.740015

Availability

Region / IDSpotOndemand
Ohio (US) / us-east-2
0.3283 USD/h
1.328 USD/h
Northern Virgina (US) / us-east-1
0.481825 USD/h
1.33 USD/h
Oregon (US) / us-west-2
0.4353 USD/h
1.33 USD/h
California (US) / us-west-1
0.2879 USD/h
1.482 USD/h
Dublin (IE) / eu-west-1
0.541033 USD/h
1.482 USD/h
Mumbai (IN) / ap-south-1
0.4414 USD/h
1.516 USD/h
Seoul (KR) / ap-northeast-2
0.3993 USD/h
1.596 USD/h
Tokyo (JP) / ap-northeast-1
0.4343 USD/h
1.596 USD/h
Sydney (AU) / ap-southeast-2
0.513533 USD/h
1.596 USD/h
Singapore (SG) / ap-southeast-1
0.5747 USD/h
1.596 USD/h
Frankfurt (DE) / eu-central-1
0.4318 USD/h
1.6 USD/h
Sao Paulo (BR) / sa-east-1
0.2799 USD/h
2.799 USD/h

Processor

vCPUs
16
Hypervisor
xen
CPU Allocation
Dedicated
CPU Cores
8
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
256 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
256 KiB
CPU L2 Cache Total
2 MiB
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
10.5
Scalability
65.62

System Resources and Accelerators

Memory
Memory Amount
122 GiB
Memory Amount Actual
122 GiB
Accelerators
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    Storage
    Storage Size
    320 GB
    Storage Type
    ssd
    Storages
    • 320 GB ssd
    Compatible Storage IDs
    standard, gp2, gp3, st1, sc1, io1, io2
    Network
    Network Speed Baseline
    2 Gbps
    Network Speed Max
    10 Gbps
    Network Storage Speed Baseline
    2 Gbps
    Network Storage Speed Max
    2 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized virtual server featuring dedicated Intel Xeon processors, substantial RAM capacity, and integrated local NVMe SSD storage.

    Amazon Web Services r3.4xlarge is a memory-optimized third-generation instance utilizing the Xen hypervisor and an x86_64 Intel Xeon E5-2670 v2 processor. It delivers 16 vCPUs across 8 physical cores at 2.5 GHz, paired with 122.0 GB of RAM and a bundled 320 GB NVMe SSD. While single-core benchmarks, such as Geekbench and stress-ng, place the instance in the lower performance tiers, its multi-core and memory bandwidth capabilities consistently reach average levels. The instance features a baseline network bandwidth of 2 Gbps and lacks complimentary public IPv4 addresses. Qualitatively, the r3.4xlarge provides a resource-dense profile for memory-heavy workloads. It is best suited for databases, multi-threaded data processing, and static web serving, though it presents a performance tradeoff for single-threaded operations and modern instruction-heavy tasks.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.6Score
    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) 1,111,628 ops/sec 1,933,252 ops/sec 0.58 50.00% 50.00% -24.00%
    Redis RPS (pipeline=16, SET) 4,534,648 ops/sec 11,814,424 ops/sec 0.38 20.00% 20.00% -18.00%
    PassMark Memory Mark (composite) 2,491 2,408 1 10.00% 10.00% 0.00%
    Memory bandwidth (read, 16 MB ~ L3) 91,879 MB/sec 108,674 MB/sec 0.84 10.00% 10.00% -1.70%
    PassMark single-thread CPU 1,891 Mops/s 2,365 Mops/s 0.79 10.00% 10.00% -2.30%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 719

    Geekbench Multi-Core

    Score: 4,727

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 14,029
    Compression
    		 208,133
    Encryption
    		 6,426
    Extended Instructions
    		 7,882
    Floating Point Maths
    		 25,282
    Integer Maths
    		 46,167
    Physics
    		 1,599
    Prime Numbers
    		 82
    Single Threaded
    		 1,891
    String Sorting
    		 25,182

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,491
    Database Operations
    		 5,433
    Memory Latency
    		 54
    Memory Read Cached
    		 22,549
    Memory Read Uncached
    		 10,181
    Memory Write
    		 9,697

    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

    INSTANCEvCPUsMEMORYAccelerators
    r6g.medium 18 GiB0
    r6gd.medium 18 GiB0
    r7a.medium 18 GiB0
    r7g.medium 18 GiB0
    r7gd.medium 18 GiB0
    r8a.medium 18 GiB0
    r8g.medium 18 GiB0

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    r3.4xlarge FAQs