Dedicated DB Instances

This section provides test data of RDS for PostgreSQL 14 x86-based dedicated instances using cloud SSDs.

**Table 1** vCPU:Memory = 1:2
vCPUs	Memory (GB)	TPS	QPS	IOPS
2	4	373.53	7,470.64	The input/output operations per second (IOPS) supported depends on the I/O performance of Elastic Volume Service (EVS) disks. For details, see Disk Types and Performance of Elastic Volume Service Service Overview.
4	8	748.80	14,976.09
8	16	1,563.35	31,266.94
16	32	1,873.68	37,473.69

**Table 2** vCPU:Memory = 1:4
vCPUs	Memory (GB)	TPS	QPS	IOPS
2	8	472.01	9,440.15	The input/output operations per second (IOPS) supported depends on the I/O performance of Elastic Volume Service (EVS) disks. For details, see Disk Types and Performance of Elastic Volume Service Service Overview.
4	16	994.46	19,889.28
8	32	1,806.45	36,129.18
16	64	2,551.62	51,032.43

**Table 3** vCPU:Memory = 1:8
vCPUs	Memory (GB)	TPS	QPS	IOPS
2	16	463.48	9,269.67	The input/output operations per second (IOPS) supported depends on the I/O performance of Elastic Volume Service (EVS) disks. For details, see Disk Types and Performance of Elastic Volume Service Service Overview.
4	32	1,103.30	22,065.92
8	64	1,996.53	39,930.74
16	128	3,778.67	75,573.89