c4.xlarge by Amazon Web Services

c4.xlarge is a Compute optimized Gen4 xlarge server offered by Amazon Web Services with 4 vCPUs, 8 GiB of memory and 0 GB of storage. The pricing starts at 0.033 USD per hour.
4 vCPU
8 GiB Memory
Spare SCore
3,903
(All-cores)
1,481
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c4.xlarge
Description
Compute optimized Gen4 xlarge
Family
c4
Hw Virt
Average Time To Start
36
Status
active
Observed At
2026-09-06T21:59:44.290366

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.0395 USD/h 0.199 USD/h
Northern Virgina (US) / us-east-1
0.089933 USD/h 0.199 USD/h
Oregon (US) / us-west-2
0.0775 USD/h 0.199 USD/h
Mumbai (IN) / ap-south-1
0.05875 USD/h 0.2 USD/h
Quebec (CA) / ca-central-1
0.0866 USD/h 0.218 USD/h
Dublin (IE) / eu-west-1
0.083333 USD/h 0.226 USD/h
Seoul (KR) / ap-northeast-2
0.0548 USD/h 0.227 USD/h
Frankfurt (DE) / eu-central-1
0.092433 USD/h 0.227 USD/h
Singapore (SG) / ap-southeast-1
0.082 USD/h 0.231 USD/h
London (GB) / eu-west-2
0.082867 USD/h 0.237 USD/h
California (US) / us-west-1
0.08335 USD/h 0.249 USD/h
Tokyo (JP) / ap-northeast-1
0.08 USD/h 0.252 USD/h
Osaka (JP) / ap-northeast-3
0.073 USD/h 0.252 USD/h
Sydney (AU) / ap-southeast-2
0.090133 USD/h 0.261 USD/h
Sao Paulo (BR) / sa-east-1
0.08215 USD/h 0.309 USD/h

Processor

vCPUs
4
Hypervisor
xen
CPU Allocation
Dedicated
CPU Cores
2
CPU Speed
2.9 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
E5-2666 v3
CPU L1D Cache
32 KiB
CPU L1D Cache Total
64 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
64 KiB
CPU L2 Cache
256 KiB
CPU L2 Cache Total
512 KiB
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, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, cpuid, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, pti, fsgsbase, bmi1, avx2, smep, bmi2, erms, invpcid, xsaveopt
Ecpus
2.6
Scalability
130

System Resources and Accelerators

MEMORY
Memory Amount
8 GiB
Memory Amount Actual
8 GiB
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
      1.25 Gbps
      Network Speed Max
      2.8 Gbps
      Network Storage Speed Baseline
      0.75 Gbps
      Network Storage Speed Max
      0.75 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A dedicated compute-focused instance with four vCPUs and eight gigabytes of memory for basic single-threaded processing workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c4.xlarge is a compute-optimized instance featuring 4 vCPUs and 8.0 GB of RAM, powered by a dedicated Intel Xeon E5-2666 v3 processor running at 2.9 GHz. Operating on the Xen hypervisor, this x86_64 server includes 2 physical cores with hyper-threading, a 25 MB L3 cache, and support for AVX and AES instructions. It does not include local storage or dedicated GPUs, and provides a baseline network bandwidth of 1 Gbps. Benchmark results indicate average single-core performance, such as in stress-ng and single-threaded gzip compression, but reveal weak multi-core and memory bandwidth capabilities. Consequently, the c4.xlarge is best suited for lightweight, compute-focused workloads, basic web serving, and single-threaded processing tasks where high memory throughput is not a critical requirement.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.214Score
      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) 317,739 ops/sec 1,917,397 ops/sec 0.166 50.00% 50.00% -59.30%
      Redis RPS (pipeline=16, SET) 1,331,166 ops/sec 11,681,410 ops/sec 0.114 20.00% 20.00% -35.20%
      PassMark Memory Mark (composite) 1,089 2,418 0.45 10.00% 10.00% -7.67%
      Memory bandwidth (read, 16 MB ~ L3) 34,197 MB/sec 108,140 MB/sec 0.316 10.00% 10.00% -10.90%
      PassMark single-thread CPU 2,041 Mops/s 2,365 Mops/s 0.863 10.00% 10.00% -1.46%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,149

      Geekbench Multi-Core

      Score: 2,516

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 4355
      Compression
      		 57004
      Encryption
      		 1750
      Extended Instructions
      		 2679
      Floating Point Maths
      		 6880
      Integer Maths
      		 12542
      Physics
      		 582
      Prime Numbers
      		 28
      Single Threaded
      		 2041
      String Sorting
      		 6768

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1089
      Database Operations
      		 1443
      Memory Latency
      		 55
      Memory Read Cached
      		 24424
      Memory Read Uncached
      		 9991
      Memory Write
      		 9745

      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
      c4.large 24 GiB0
      c4.2xlarge 815 GiB0
      c4.4xlarge 1630 GiB0
      c4.8xlarge 3660 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      c4.xlarge FAQs