db.t3.xlargevsdb.m4.xlarge

db.t3.xlarge is 21% cheaper than db.m4.xlarge on demand in US East (N. Virginia), saving $54.75 a month.

At a glancedb.t3.xlargedb.m4.xlarge
On-demand$0.29/hr21% less$0.365/hr
Size4 vCPUs, 16 GiB4 vCPUs, 16 GiB
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.m4.xlargedb.m4.xlarge vs db.t3.xlarge
On-demandPay by the hour$0.29$0.365▲ 26%
1-yr reservedNo upfront29% off$0.2068——

Key differences

The biggest lead each one has.

Where db.t3.xlarge leads
On-demand price$0.29 vs $0.365 per hour
21% cheaper
CPU modelEarns credits while idle, then bursts
Burstable
EBS max bandwidth2,780 Mbps vs 750 Mbps
3.7× higher
Network peak5 Gbps vs 2.8 Gbps
79% higher
Where db.m4.xlarge leads
CPU modelSteady performance, no credits to manage
Full CPU
EBS baseline IOPS6,000 vs 4,000
50% higher

Specs

19 of 24 specs differ. Those are in bold.

Compute4 of 8 differdb.t3.xlargedb.m4.xlarge
vCPUs44
Physical cores22
Threads per core22
Architecturex86_64–
ProcessorIntel Skylake E5 2686 v5 (2.5 GHz)–
CPU makerIntelIntel
Sustained clock2.5 GHz2.4 GHz
BurstableYesNo
MemoryAll 1 matchdb.t3.xlargedb.m4.xlarge
Memory (GiB)1616
Networking3 of 3 differdb.t3.xlargedb.m4.xlarge
NetworkModerate–
Network baseline1.024 Gbps0.75 Gbps
Network peak5 Gbps2.8 Gbps
Storage7 of 7 differdb.t3.xlargedb.m4.xlarge
StorageEBS Only–
EBS baseline bandwidth695 Mbps750 Mbps
EBS max bandwidth2,780 Mbps750 Mbps
EBS baseline throughput86.875 MB/s93.75 MB/s
EBS max throughput347.5 MB/s93.75 MB/s
EBS baseline IOPS4,0006,000
EBS max IOPS15,7006,000
Instance details4 of 4 differdb.t3.xlargedb.m4.xlarge
Familyt3m4
CategoryGeneral purpose–
Current generationYes–
Normalization factor–8
Other1 of 1 differdb.t3.xlargedb.m4.xlarge
Hardware Basist3.xlargem4.xlarge

On-demand prices by region

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

Regiondb.t3.xlargedb.m4.xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.29$0.365▲ 26%
US East (Ohio)us-east-2$0.29$0.365▲ 26%
US West (Oregon)us-west-2$0.29$0.365▲ 26%
EU (Ireland)eu-west-1$0.312$0.403▲ 29%
Canada (Central)ca-central-1$0.32$0.402▲ 26%
EU (London)eu-west-2$0.328$0.423▲ 29%
EU (Paris)eu-west-3$0.328$0.405▲ 23%
EU (Frankfurt)eu-central-1$0.336$0.435▲ 29%
AWS GovCloud (US-West)us-gov-west-1$0.35$0.436▲ 25%
US West (N. California)us-west-1$0.38$0.426▲ 12%
Asia Pacific (Mumbai)ap-south-1$0.424$0.514▲ 21%
Asia Pacific (Osaka)ap-northeast-3$0.448$0.531▲ 19%
Asia Pacific (Seoul)ap-northeast-2$0.448$0.504▲ 12%
Asia Pacific (Singapore)ap-southeast-1$0.448$0.542▲ 21%
Asia Pacific (Sydney)ap-southeast-2$0.448$0.513▲ 15%
Asia Pacific (Tokyo)ap-northeast-1$0.448$0.53▲ 18%
South America (Sao Paulo)sa-east-1$0.604$0.477▼ 21%

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.m8i.xlargedb.m7i.xlargedb.m6id.xlargedb.m6idn.xlargedb.m6in.xlargedb.t2.xlarge
db.m4.xlargem4 family
db.m4.xlarge prices and specsEvery size in the m4 family

Compare db.m4.xlarge with

db.r4.xlargedb.t2.xlargedb.m3.xlargedb.m5.xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 0–29% 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.