r7a.48xlarge by Amazon Web Services

r7a.48xlarge is a Memory optimized [AMD processors] Gen7 48xlarge server offered by Amazon Web Services with 192 vCPUs, 1536 GiB of memory and 0 GB of storage. The pricing starts at 1.507 USD per hour.
192 vCPU
1536 GiB Memory
Spare SCore
588,965
(All-cores)
3,076
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r7a.48xlarge
Description
Memory optimized [AMD processors] Gen7 48xlarge
Family
r7a
Hw Virt
Status
active
Observed At
2026-10-02T07:20:51.902791Z

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
3.49498 USD/h 14.6064 USD/h
Ohio (US) / us-east-2
4.4095 USD/h 14.6064 USD/h
Oregon (US) / us-west-2
5.113375 USD/h 14.6064 USD/h
Hyderabad (IN) / ap-south-2
1.507 USD/h 15.0701 USD/h
Stockholm (SE) / eu-north-1
2.454433 USD/h 15.5328 USD/h
Aragón (ES) / eu-south-2
2.132133 USD/h 16.345 USD/h
Dublin (IE) / eu-west-1
5.164633 USD/h 16.345 USD/h
Tokyo (JP) / ap-northeast-1
4.144033 USD/h 17.6198 USD/h
Frankfurt (DE) / eu-central-1
5.730067 USD/h 17.6198 USD/h

Processor

vCPUs
192
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
192
CPU Speed
3.7 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9R14
CPU L1D Cache
32 KiB
CPU L1D Cache Total
6 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, nopl, 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, bmi1, avx2, smep, bmi2, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, flush_l1d
Ecpus
191.5
Scalability
99.74

System Resources and Accelerators

MEMORY
Memory Amount
2 TB
Memory Amount Actual
2 TB
Memory Generation
DDR5
Memory Speed
4800 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
      50 Gbps
      Network Speed Max
      50 Gbps
      Network Storage Speed Baseline
      40 Gbps
      Network Storage Speed Max
      40 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A memory-optimized x86 platform featuring 192 dedicated AMD EPYC cores and 1.5 TB of high-speed DDR5 memory for enterprise workloads.

      Memory OptimizedCompute Optimized

      Amazon Web Services r7a.48xlarge is a memory-optimized instance featuring 192 dedicated physical cores powered by AMD EPYC 9R14 processors at 3.7 GHz. Built on the AWS Nitro hypervisor, it provides 1536.0 GB of DDR5 memory running at 5 GHz, translating to 8.0 GB of RAM per core. The instance lacks local storage and GPU accelerators but delivers a baseline network bandwidth of 50 Gbps. Benchmark results show top-tier multi-core CPU performance and memory bandwidth, alongside strong database and Redis SET operations. However, text generation for small LLM models presents a performance tradeoff, scoring in the bottom 25%. This instance is configured for memory-intensive workloads, large-scale database operations, software compilation, and parallel enterprise applications requiring high memory density and substantial compute capacity without local storage requirements.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      7.1Score
      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) 21,266,906 ops/sec 1,916,704 ops/sec 11 50.00% 50.00% +230.00%
      Redis RPS (pipeline=16, SET) 172,244,024 ops/sec 11,642,227 ops/sec 14 20.00% 20.00% +70.00%
      PassMark Memory Mark (composite) 2,849 2,418 1.2 10.00% 10.00% +1.80%
      Memory bandwidth (read, 16 MB ~ L3) 835,055 MB/sec 108,322 MB/sec 7.6 10.00% 10.00% +22.00%
      PassMark single-thread CPU 2,887 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,972

      Geekbench Multi-Core

      Score: 20,099

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 143337
      Compression
      		 3918828
      Encryption
      		 240079
      Extended Instructions
      		 299673
      Floating Point Maths
      		 998855
      Integer Maths
      		 1156847
      Physics
      		 38387
      Prime Numbers
      		 3049
      Single Threaded
      		 2887
      String Sorting
      		 563665

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2849
      Database Operations
      		 31580
      Memory Latency
      		 78
      Memory Read Cached
      		 27825
      Memory Read Uncached
      		 27018
      Memory Write
      		 25417

      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
      r7a.medium 18 GiB0
      r7a.large 216 GiB0
      r7a.xlarge 432 GiB0
      r7a.2xlarge 864 GiB0
      r7a.4xlarge 16128 GiB0
      r7a.8xlarge 32256 GiB0
      r7a.12xlarge 48384 GiB0

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      r7a.48xlarge FAQs