InstanceRank

Single-thread performance and predictable latency

Best OCI Instances for Databases

Databases have different bottlenecks than stateless workloads: single-threaded query planning, buffer pool management, and write-ahead logging all depend heavily on single-core speed and memory bandwidth. While value-per-vCPU still matters, you should also weigh single-thread PassMark scores and networking bandwidth for replication and client throughput. Bare Metal shapes eliminate hypervisor overhead entirely, giving you consistent sub-millisecond latency — critical for OLTP databases like PostgreSQL and MySQL running under heavy write loads.

What to look for

Database query planning and execution are often single-threaded. High single-thread PassMark and strong networking bandwidth reduce query latency and replication lag. For PostgreSQL and MySQL, Bare Metal shapes are worth the premium for consistent, jitter-free latency.

  • →Single-thread PassMark
  • →Value score (PassMark/vCPU ÷ $/vCPU/hr)
  • →Networking bandwidth (Gbps)
  • →RAM (GB)

Ranked instances — 51 shapes

#Shape$/vCPU/hr
1
ARMVMVM.Standard.A1.Flexflex
$0.0100
2
ARMBMBM.Standard.A1.160
$0.0100
3
x86BMBM.DenseIO.E4.128
$0.0125
4
x86BMBM.Standard.E4.128
$0.0125
5
x86VMVM.Standard.E4.Flexflex
$0.0125
6
x86VMVM.DenseIO.E4.Flexflex
$0.0125
7
x86VMVM.Standard.E3.Flexflex
$0.0125
8
x86BMBM.Standard.E3.128
$0.0125
9
x86BMBM.DenseIO.E5.128
$0.0150
10
x86BMBM.Standard.E5.192
$0.0150
11
x86VMVM.Standard.E5.Flexflex
$0.0150
12
x86VMVM.DenseIO.E5.Flexflex
$0.0150
13
x86VMVM.Standard.E2.1
$0.0150
14
x86VMVM.Standard.E2.2
$0.0150
15
x86VMVM.Standard.E2.4
$0.0150
16
x86VMVM.Standard.E2.8
$0.0150
17
x86BMBM.Standard.E2.64
$0.0150
18
x86VMVM.Standard.E2.1.Micro
$0.0150
19
x86VMVM.Optimized3.Flexflex
$0.0270
20
x86BMBM.HPC2.36
$0.0375
21
ARMBMBM.Standard.A4.Ax.48
$0.0069
22
ARMVMVM.Standard.A4.Ax.Flexflex
$0.0069
23
ARMVMVM.Standard.A2.Flexflex
$0.0070
24
x86VMVM.Standard.B1.1
$0.0319
25
x86VMVM.Standard.B1.2
$0.0319
26
x86BMBM.Standard.B1.44
$0.0319
27
x86VMVM.Standard.B1.4
$0.0319
28
x86VMVM.Standard.B1.8
$0.0319
29
x86VMVM.Standard.B1.16
$0.0319
30
x86BMBM.Standard.E6.256
$0.0069
31
x86VMVM.Standard2.1
N/A
32
x86VMVM.Standard2.2
N/A
33
x86VMVM.Standard2.4
N/A
34
x86VMVM.Standard2.8
N/A
35
x86VMVM.Standard2.16
N/A
36
x86VMVM.Standard2.24
N/A
37
x86VMVM.Standard3.Flexflex
N/A
38
x86VMVM.DenseIO2.8
N/A
39
x86VMVM.DenseIO2.16
N/A
40
x86VMVM.DenseIO2.24
N/A
41
x86VMVM.Standard1.1
N/A
42
x86VMVM.Standard1.2
N/A
43
x86VMVM.Standard1.4
N/A
44
x86BMBM.Standard3.64
N/A
45
x86BMBM.Standard2.52
N/A
46
x86BMBM.Optimized3.36
N/A
47
x86VMVM.Standard1.8
N/A
48
x86VMVM.Standard1.16
N/A
49
x86BMBM.DenseIO2.52
N/A
50
x86BMBM.Standard1.36
N/A
51
x86VMVM.Standard.E6.Flexflex
$0.0069

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