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r8a.metal-48xl by Amazon Web Services

r8a.metal-48xl is a Memory optimized [AMD processors] Gen8 metal-48xl server offered by Amazon Web Services with 192 vCPUs, 1536 GiB of memory and 0 GB of storage. The pricing starts at 1.7162 USD per hour.
192 vCPU
1536 GiB Memory
Spare SCore
702044
(All-cores)
3786
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8a.metal-48xl
Description
Memory optimized [AMD processors] Gen8 metal-48xl
Family
r8a
Hw Virt
Status
active
Observed At
2026-07-27T21:14:15.400507

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
3.9593 USD/h 15.337 USD/h
Northern Virgina (US) / us-east-1
4.06438 USD/h 15.337 USD/h
Ohio (US) / us-east-2
4.275533 USD/h 15.337 USD/h
Aragón (ES) / eu-south-2
2.8326 USD/h 17.1619 USD/h
Dublin (IE) / eu-west-1
4.0625 USD/h 17.1619 USD/h
Tokyo (JP) / ap-northeast-1
2.844567 USD/h 18.5011 USD/h
Frankfurt (DE) / eu-central-1
3.780267 USD/h 18.5011 USD/h

Processor

vCPUs
192
CPU Allocation
Dedicated
CPU Cores
192
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
9 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
6 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
192 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
768 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, amd_lbr_v2, nopl, xtopology, nonstop_tsc, cpuid, extd_apicid, aperfmperf, rapl, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, lahf_lm, cmp_legacy, svm, extapic, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, ibs, skinit, wdt, tce, topoext, perfctr_core, perfctr_nb, bpext, perfctr_llc, mwaitx, cpb, cat_l3, cdp_l3, hw_pstate, ssbd, mba, perfmon_v2, ibrs, ibpb, stibp, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, cqm, rdt_a, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, cqm_llc, cqm_occup_llc, cqm_mbm_total, cqm_mbm_local, user_shstk, avx_vnni, avx512_bf16, clzero, irperf, xsaveerptr, rdpru, wbnoinvd, amd_ppin, cppc, arat, npt, lbrv, svm_lock, nrip_save, tsc_scale, vmcb_clean, flushbyasid, decodeassists, pausefilter, pfthreshold, avic, v_vmsave_vmload, vgif, x2avic, v_spec_ctrl, vnmi, avx512vbmi, umip, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, la57, rdpid, bus_lock_detect, movdiri, movdir64b, overflow_recov, succor, smca, fsrm, avx512_vp2intersect, flush_l1d, sev, sev_es, sev_snp, debug_swap, amd_lbr_pmc_freeze
Ecpus
185.5
Scalability
96.61

System Resources and Accelerators

MEMORY
Memory Amount
2 TB
Memory Amount Actual
2 TB
Memory Generation
DDR5
Memory Speed
6400 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      75 Gbps
      Network Speed Max
      75 Gbps
      Network Storage Speed Baseline
      60 Gbps
      Network Storage Speed Max
      60 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A bare-metal, memory-optimized platform featuring 192 dedicated AMD EPYC cores and 1.5 TB of high-speed DDR5 RAM for enterprise workloads.

      Memory OptimizedCompute Optimized

      Amazon Web Services r8a.metal-48xl is a bare-metal, memory-optimized server featuring 192 dedicated physical cores on the x86_64 architecture, powered by AMD EPYC 9R45 processors running at 4.5 GHz. It is equipped with 1536.0 GB of DDR5 memory at 6 GHz, yielding 8.0 GB of RAM per core, but lacks local storage and GPU accelerators. Network performance is anchored by a 75 Gbps baseline bandwidth. Benchmark results place the server in the top 10% for multi-core CPU performance, database operations, and large-block memory bandwidth, though its Passmark memory score remains in the average tier. This configuration is highly efficient for memory-intensive enterprise applications, large-scale databases, and parallel compilation tasks.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      13.4Score
      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) 49,139,863 ops/sec 1,896,415 ops/sec 25.9 50.00% 50.00% +409.00%
      Redis RPS (pipeline=16, SET) 312,760,502 ops/sec 11,539,523 ops/sec 27.1 20.00% 20.00% +93.50%
      PassMark Memory Mark (composite) 2,734 2,411 1.13 10.00% 10.00% +1.23%
      Memory bandwidth (read, 16 MB ~ L3) 1,327,016 MB/sec 107,368 MB/sec 12.4 10.00% 10.00% +28.60%
      PassMark single-thread CPU 3,782 Mops/s 2,363 Mops/s 1.6 10.00% 10.00% +4.81%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,592

      Geekbench Multi-Core

      Score: 26,822

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 183974
      Compression
      		 4786175
      Encryption
      		 274063
      Extended Instructions
      		 401250
      Floating Point Maths
      		 1289384
      Integer Maths
      		 1413743
      Physics
      		 56352
      Prime Numbers
      		 4173
      Single Threaded
      		 3782
      String Sorting
      		 634817

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2734
      Database Operations
      		 42851
      Memory Latency
      		 90
      Memory Read Cached
      		 33647
      Memory Read Uncached
      		 32491
      Memory Write
      		 26177

      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
      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

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      r8a.metal-48xl FAQs