db.t3.xlargevsdb.m8i.xlarge

db.t3.xlarge is 22% cheaper than db.m8i.xlarge on demand in US East (N. Virginia), saving $58.40 a month.

At a glancedb.t3.xlargedb.m8i.xlarge
On-demand$0.29/hr22% less$0.37/hr
Lowest rate$0.2068/hr17% less1-yr reserved, no upfront$0.2479/hr1-yr reserved, no upfront
Size4 vCPUs, 16 GiB4 vCPUs, 16 GiB
ProcessorIntel Skylake E5 2686 v5 (2.5 GHz)Intel Xeon Scalable (Granite Rapids)
Architecturex86_64x86_64
CPUBurstableBest for workloads that are mostly idleFull CPUSteady performance, no credits to manage

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.

Optiondb.t3.xlargedb.m8i.xlargedb.m8i.xlarge vs db.t3.xlarge
On-demandPay by the hour$0.29$0.37▲ 28%
1-yr reservedNo upfront29% off$0.206833% off$0.2479▲ 20%
3-yr reservedNo upfront—53% off$0.1739—
1-yr savings planHourly commitment—20% off$0.296—

Key differences

The biggest lead each one has.

Where db.t3.xlarge leads
On-demand price$0.29 vs $0.37 per hour
22% cheaper
CPU modelEarns credits while idle, then bursts
Burstable
Where db.m8i.xlarge leads
CPU modelSteady performance, no credits to manage
Full CPU
EBS max bandwidth10,000 Mbps vs 2,780 Mbps
3.6× higher
Network peak12.5 Gbps vs 5 Gbps
2.5× higher
Sustained clock3.9 GHz vs 2.5 GHz
56% higher

Specs

14 of 23 specs differ. Those are in bold.

Compute3 of 8 differdb.t3.xlargedb.m8i.xlarge
vCPUs44
Physical cores22
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Skylake E5 2686 v5 (2.5 GHz)Intel Xeon Scalable (Granite Rapids)
CPU makerIntelIntel
Sustained clock2.5 GHz3.9 GHz
BurstableYesNo
MemoryAll 1 matchdb.t3.xlargedb.m8i.xlarge
Memory (GiB)1616
Networking3 of 3 differdb.t3.xlargedb.m8i.xlarge
NetworkModerateUp to 12500 Megabit
Network baseline1.024 Gbps1.875 Gbps
Network peak5 Gbps12.5 Gbps
Storage6 of 7 differdb.t3.xlargedb.m8i.xlarge
StorageEBS OnlyEBS Only
EBS baseline bandwidth695 Mbps1,250 Mbps
EBS max bandwidth2,780 Mbps10,000 Mbps
EBS baseline throughput86.875 MB/s156.25 MB/s
EBS max throughput347.5 MB/s1,250 MB/s
EBS baseline IOPS4,0006,000
EBS max IOPS15,70040,000
Instance details1 of 3 differdb.t3.xlargedb.m8i.xlarge
Familyt3m8i
CategoryGeneral purposeGeneral purpose
Current generationYesYes
Other1 of 1 differdb.t3.xlargedb.m8i.xlarge
Hardware Basist3.xlargem8i.xlarge

On-demand prices by region

Cheapest for db.t3.xlarge first. PostgreSQL, USD per hour.

Regiondb.t3.xlargedb.m8i.xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.29$0.37▲ 28%
US East (Ohio)us-east-2$0.29$0.37▲ 28%
US West (Oregon)us-west-2$0.29$0.37▲ 28%
EU (Ireland)eu-west-1$0.312$0.414▲ 33%
Europe (Spain)eu-south-2$0.312$0.41▲ 31%
Canada (Central)ca-central-1$0.32$0.41▲ 28%
Canada West (Calgary)ca-west-1$0.32$0.41▲ 28%
EU (London)eu-west-2$0.328$0.433▲ 32%
EU (Paris)eu-west-3$0.328$0.43▲ 31%
EU (Frankfurt)eu-central-1$0.336$0.45▲ 34%
Africa (Cape Town)af-south-1$0.371$0.5▲ 35%
US West (N. California)us-west-1$0.38$0.43▲ 13%
Asia Pacific (Malaysia)ap-southeast-5$0.404$0.46▲ 14%
Asia Pacific (Hyderabad)ap-south-2$0.424$0.53▲ 25%
Asia Pacific (Mumbai)ap-south-1$0.424$0.53▲ 25%
Asia Pacific (Seoul)ap-northeast-2$0.448$0.52▲ 16%
Asia Pacific (Singapore)ap-southeast-1$0.448$0.52▲ 16%
Asia Pacific (Sydney)ap-southeast-2$0.448$0.52▲ 16%
Asia Pacific (Tokyo)ap-northeast-1$0.448$0.52▲ 16%
Asia Pacific (New Zealand)ap-southeast-6$0.4704$0.5447▲ 16%
South America (Sao Paulo)sa-east-1$0.604$0.49▼ 19%

Keep exploring

Each type’s own page, and how it compares with others.

db.t3.xlargeGeneral purpose, t3 family, burstable
db.t3.xlarge prices and specsEvery size in the t3 family

Compare db.t3.xlarge with

db.m5.xlargedb.m5d.xlargedb.m6i.xlargedb.m7i.xlargedb.m6id.xlargedb.m4.xlargedb.m6idn.xlargedb.m6in.xlargedb.t2.xlarge
db.m8i.xlargeGeneral purpose, m8i family
db.m8i.xlarge prices and specsEvery size in the m8i family

Compare db.m8i.xlarge with

db.m8g.xlargedb.r8i.xlargedb.m8a.xlargedb.t2.xlargedb.m7i.xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 29–53% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

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AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.