c1.xlarge by Amazon Web Services

c1.xlarge is a Compute optimized Gen1 xlarge server offered by Amazon Web Services with 8 vCPUs, 7 GiB of memory and 1.68 TB of storage. The pricing starts at 0.1063 USD per hour.
8 vCPU
7 GiB Memory
1.68 TB Storage
Spare SCore
5,610
(All-cores)
949
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c1.xlarge
Description
Compute optimized Gen1 xlarge
Family
c1
Hw Virt
Status
active
Observed At
2026-09-11T12:07:13.271121

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
0.249675 USD/h 0.52 USD/h
Oregon (US) / us-west-2
0.174067 USD/h 0.52 USD/h
California (US) / us-west-1
0.1585 USD/h 0.592 USD/h
Dublin (IE) / eu-west-1
0.2196 USD/h 0.592 USD/h
Tokyo (JP) / ap-northeast-1
0.16 USD/h 0.632 USD/h
Sydney (AU) / ap-southeast-2
0.18865 USD/h 0.655 USD/h
Singapore (SG) / ap-southeast-1
0.2696 USD/h 0.655 USD/h
Sao Paulo (BR) / sa-east-1
0.13775 USD/h 0.718 USD/h

Processor

vCPUs
8
Hypervisor
xen
CPU Allocation
Dedicated
CPU Cores
8
CPU Speed
1.8 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
E5-2651 v2
CPU L1D Cache
32 KiB
CPU L1D Cache Total
256 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
256 KiB
CPU L2 Cache Total
2 MiB
CPU L3 Cache
30 MiB
CPU L3 Cache Total
240 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, rdtscp, lm, constant_tsc, rep_good, nopl, cpuid, tsc_known_freq, pni, pclmulqdq, ssse3, cx16, pcid, sse4_1, sse4_2, x2apic, popcnt, tsc_deadline_timer, aes, rdrand, hypervisor, lahf_lm, pti, fsgsbase, smep, erms
Ecpus
5.9
Scalability
73.75

System Resources and Accelerators

MEMORY
Memory Amount
7 GiB
Memory Amount Actual
7 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    1680 GB
    Storage Type
    hdd
    Storages
    • 420 GB hdd
    • 420 GB hdd
    • 420 GB hdd
    • 420 GB hdd
    NETWORK
    Network Speed Baseline
    1 Gbps
    Network Speed Max
    10 Gbps
    Network Storage Speed Baseline
    1 Gbps
    Network Storage Speed Max
    1 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A legacy compute instance featuring dedicated physical cores, substantial local HDD storage, and basic processing capabilities for older workloads.

    Compute OptimizedStorage & Database

    Amazon Web Services c1.xlarge is a legacy compute-optimized instance featuring 8 dedicated Intel Xeon E5-2651 v2 cores running at 1.8 GHz on an x86_64 architecture. It is configured with 7.0 GB of system memory and a substantial 1680 GB of local HDD storage, operating on the Xen hypervisor with a 1 Gbps baseline network speed. Performance benchmarks place this instance in the lower tiers, with single-core and multi-core CPU metrics scoring in the bottom 10% and 25% respectively, though large-block memory bandwidth and database operations achieve average ratings. Lacking modern instruction sets like AVX-512, the c1.xlarge is best suited for legacy batch processing, basic database operations, and workloads requiring high local HDD capacity rather than high-performance compute.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.251Score
    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) 384,227 ops/sec 1,917,397 ops/sec 0.2 50.00% 50.00% -55.30%
    Redis RPS (pipeline=16, SET) 1,788,485 ops/sec 11,681,410 ops/sec 0.153 20.00% 20.00% -31.30%
    PassMark Memory Mark (composite) 1,313 2,418 0.543 10.00% 10.00% -5.92%
    Memory bandwidth (read, 16 MB ~ L3) 46,148 MB/sec 108,140 MB/sec 0.427 10.00% 10.00% -8.16%
    PassMark single-thread CPU 1,336 Mops/s 2,365 Mops/s 0.565 10.00% 10.00% -5.55%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 515

    Geekbench Multi-Core

    Score: 2,069

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 5470
    Compression
    		 82362
    Encryption
    		 2394
    Extended Instructions
    		 2292
    Floating Point Maths
    		 10404
    Integer Maths
    		 17437
    Physics
    		 723
    Prime Numbers
    		 40
    Single Threaded
    		 1336
    String Sorting
    		 9719

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 1313
    Database Operations
    		 2727
    Memory Latency
    		 77
    Memory Read Cached
    		 16025
    Memory Read Uncached
    		 6843
    Memory Write
    		 6763

    Stress-ng Raw Scores

    Stress-ng Relative Multicore Performance

    Static Web Server

    Redis

    Alternatives

    Servers of the Same Family

    INSTANCEvCPUsMEMORYGPUs
    c1.medium 22 GiB0

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    c1.xlarge FAQs