r8a.24xlarge by Amazon Web Services

r8a.24xlarge is a Memory optimized [AMD processors] Gen8 24xlarge server offered by Amazon Web Services with 96 vCPUs, 768 GiB of memory and 0 GB of storage. The pricing starts at 0.8326 USD per hour.
96 vCPU
768 GiB Memory
Spare SCore
350,639
(All-cores)
3,799
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8a.24xlarge
Description
Memory optimized [AMD processors] Gen8 24xlarge
Family
r8a
Hw Virt
Status
active
Observed At
2026-10-26T14:19:35.639266

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
2.51866 USD/h 7.6685 USD/h
Oregon (US) / us-west-2
2.680975 USD/h 7.6685 USD/h
Ohio (US) / us-east-2
2.886333 USD/h 7.6685 USD/h
Taipei (TW) / ap-east-2
1.578233 USD/h 8.3256 USD/h
Quebec (CA) / ca-central-1
2.9804 USD/h 8.3986 USD/h
Aragón (ES) / eu-south-2
1.579867 USD/h 8.581 USD/h
Dublin (IE) / eu-west-1
3.9702 USD/h 8.581 USD/h
Tokyo (JP) / ap-northeast-1
3.304567 USD/h 9.2506 USD/h
Frankfurt (DE) / eu-central-1
3.358533 USD/h 9.2506 USD/h

Processor

vCPUs
96
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
96
CPU Speed
4.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9R45
CPU L1D Cache
48 KiB
CPU L1D Cache Total
5 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
3 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
96 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
384 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, xtopology, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, ssbd, perfmon_v2, ibrs, ibpb, stibp, ibrs_enhanced, vmmcall, 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, avx_vnni, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, movdiri, movdir64b, fsrm, avx512_vp2intersect, flush_l1d
Ecpus
92.3
Scalability
96.15

System Resources and Accelerators

MEMORY
Memory Amount
768 GiB
Memory Amount Actual
768 GiB
Memory Generation
DDR5
Memory Speed
6400 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
      40 Gbps
      Network Speed Max
      40 Gbps
      Network Storage Speed Baseline
      30 Gbps
      Network Storage Speed Max
      30 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-density, memory-optimized platform featuring ninety-six dedicated AMD EPYC cores and DDR5 memory for demanding enterprise database and analytical workloads.

      Memory OptimizedCompute Optimized

      Amazon Web Services r8a.24xlarge is a memory-optimized server featuring a dedicated 96-core AMD EPYC 9R45 processor running at 4.5 GHz on the x86_64 architecture. It is equipped with 768.0 GB of DDR5 memory operating at 6 GHz, yielding 8.0 GB of RAM per core, and utilizes the Nitro hypervisor. The instance lacks local storage and dedicated GPUs, but provides a 40 Gbps baseline network bandwidth. Benchmark data places this server in the top 10% for single-core and multi-core CPU performance, memory bandwidth, and database operations, with Redis SET operations reaching 253.4 million operations per second. It also excels in LLM inference prompt processing. This hardware profile is highly efficient for memory-intensive enterprise workloads, making it an optimal fit for in-memory databases, large-scale Redis deployments, heavy data processing, and memory-bound analytical applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      8.1Score
      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) 27,200,781 ops/sec 1,919,289 ops/sec 14 50.00% 50.00% +270.00%
      Redis RPS (pipeline=16, SET) 169,743,709 ops/sec 11,728,058 ops/sec 14 20.00% 20.00% +70.00%
      PassMark Memory Mark (composite) 2,916 2,416 1.2 10.00% 10.00% +1.80%
      Memory bandwidth (read, 16 MB ~ L3) 666,954 MB/sec 108,466 MB/sec 6.1 10.00% 10.00% +20.00%
      PassMark single-thread CPU 3,823 Mops/s 2,365 Mops/s 1.6 10.00% 10.00% +4.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,820

      Geekbench Multi-Core

      Score: 31,789

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 139,965
      Compression
      		 2,421,930
      Encryption
      		 137,384
      Extended Instructions
      		 203,539
      Floating Point Maths
      		 651,144
      Integer Maths
      		 709,577
      Physics
      		 29,434
      Prime Numbers
      		 2,152
      Single Threaded
      		 3,823
      String Sorting
      		 334,242

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,916
      Database Operations
      		 41,792
      Memory Latency
      		 83
      Memory Read Cached
      		 34,116
      Memory Read Uncached
      		 32,816
      Memory Write
      		 32,962

      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
      r8a.medium 18 GiB0
      r8a.large 216 GiB0
      r8a.xlarge 432 GiB0
      r8a.2xlarge 864 GiB0
      r8a.4xlarge 16128 GiB0
      r8a.8xlarge 32256 GiB0
      r8a.12xlarge 48384 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYAccelerators

      r8a.24xlarge FAQs