r5a.24xlarge by Amazon Web Services

r5a.24xlarge is a Memory optimized [AMD processors] Gen5 24xlarge server offered by Amazon Web Services with 96 vCPUs, 768 GiB of memory and 0 GB of storage. The pricing starts at 0.6384 USD per hour.
96 vCPU
768 GiB Memory
Spare SCore
28,314
(All-cores)
591
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5a.24xlarge
Description
Memory optimized [AMD processors] Gen5 24xlarge
Family
r5a
Hw Virt
Status
active
Observed At
2026-11-04T07:04:12.647673

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
1.922133 USD/h 3.432 USD/h
Ohio (US) / us-east-2
1.5825 USD/h 5.424 USD/h
Northern Virgina (US) / us-east-1
1.894 USD/h 5.424 USD/h
Oregon (US) / us-west-2
2.07805 USD/h 5.424 USD/h
Quebec (CA) / ca-central-1
2.55935 USD/h 5.952 USD/h
California (US) / us-west-1
1.06455 USD/h 6.048 USD/h
Dublin (IE) / eu-west-1
2.8538 USD/h 6.096 USD/h
London (GB) / eu-west-2
0.9189 USD/h 6.384 USD/h
Paris (FR) / eu-west-3
1.4719 USD/h 6.384 USD/h
Milan (IT) / eu-south-1
1.506467 USD/h 6.384 USD/h
Seoul (KR) / ap-northeast-2
0.75175 USD/h 6.528 USD/h
Sydney (AU) / ap-southeast-2
2.832 USD/h 6.528 USD/h
Singapore (SG) / ap-southeast-1
3.377033 USD/h 6.528 USD/h
Tokyo (JP) / ap-northeast-1
1.280433 USD/h 6.576 USD/h
Frankfurt (DE) / eu-central-1
2.202567 USD/h 6.576 USD/h
Sao Paulo (BR) / sa-east-1
1.68555 USD/h 8.688 USD/h

Processor

vCPUs
96
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
48
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7571
CPU L1D Cache
32 KiB
CPU L1D Cache Total
2 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
3 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
24 MiB
CPU L3 Cache
8 MiB
CPU L3 Cache Total
96 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, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, nonstop_tsc, cpuid, extd_apicid, amd_dcm, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, arat, npt, nrip_save
Ecpus
47.9
Scalability
49.9

System Resources and Accelerators

MEMORY
Memory Amount
768 GiB
Memory Amount Actual
768 GiB
Memory Generation
DDR4
Memory Speed
2667 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      20 Gbps
      Network Speed Max
      20 Gbps
      Network Storage Speed Baseline
      13.57 Gbps
      Network Storage Speed Max
      13.57 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-density memory-optimized platform featuring ninety-six virtual cores and seven hundred sixty-eight gigabytes of RAM for memory-intensive workloads.

      Memory Optimized

      Amazon Web Services r5a.24xlarge is an x86_64 memory-optimized server instance utilizing the AWS Nitro hypervisor. It is configured with 96 vCPUs across 48 physical cores of an AMD EPYC 7571 processor clocked at 2.5 GHz, paired with 768.0 GB of DDR4 memory running at 3 GHz. The instance does not include local storage or GPU accelerators, and it features a 20 Gbps baseline network bandwidth. Benchmark results indicate poor single-core performance, placing in the bottom 10% for single-threaded tasks. Conversely, multi-core benchmarks and database operations fall within the middle 50%, while cached memory bandwidth and encryption tests rank in the top 25%. This hardware profile offers qualitative cost efficiency for memory-intensive applications that can leverage parallel processing. It is suited for in-memory databases, distributed caching, and large-scale enterprise workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.8Score
      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) 4,503,211 ops/sec 1,933,252 ops/sec 2.4 50.00% 50.00% +55.00%
      Redis RPS (pipeline=16, SET) 30,598,351 ops/sec 11,794,699 ops/sec 2.6 20.00% 20.00% +21.00%
      PassMark Memory Mark (composite) 2,208 2,412 0.92 10.00% 10.00% -0.83%
      Memory bandwidth (read, 16 MB ~ L3) 164,619 MB/sec 108,490 MB/sec 1.5 10.00% 10.00% +4.10%
      PassMark single-thread CPU 1,413 Mops/s 2,365 Mops/s 0.58 10.00% 10.00% -5.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 723

      Geekbench Multi-Core

      Score: 7,032

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 46,532
      Compression
      		 1,057,388
      Encryption
      		 77,501
      Extended Instructions
      		 39,536
      Floating Point Maths
      		 130,814
      Integer Maths
      		 248,390
      Physics
      		 5,143
      Prime Numbers
      		 221
      Single Threaded
      		 1,413
      String Sorting
      		 138,382

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,208
      Database Operations
      		 15,541
      Memory Latency
      		 62
      Memory Read Cached
      		 14,939
      Memory Read Uncached
      		 11,402
      Memory Write
      		 8,191

      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
      r5a.large 216 GiB0
      r5a.xlarge 432 GiB0
      r5a.2xlarge 864 GiB0
      r5a.4xlarge 16128 GiB0
      r5a.8xlarge 32256 GiB0
      r5a.12xlarge 48384 GiB0
      r5a.16xlarge 64512 GiB0

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      r5a.24xlarge FAQs