db.t4g.largevsdb.m8g.large

db.t4g.large is 23% cheaper than db.m8g.large on demand in US East (N. Virginia), saving $28.47 a month.

At a glancedb.t4g.largedb.m8g.large
On-demand$0.129/hr23% less$0.168/hr
Lowest rate$0.093/hr18% less1-yr reserved, no upfront$0.113/hr1-yr reserved, no upfront
Size2 vCPUs, 8 GiB2 vCPUs, 8 GiB
Architecturearm64arm64
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.t4g.largedb.m8g.largedb.m8g.large vs db.t4g.large
On-demandPay by the hour$0.129$0.168▲ 30%
1-yr reservedNo upfront28% off$0.09333% off$0.113▲ 22%
3-yr reservedNo upfront—53% off$0.0789—
1-yr savings planHourly commitment—20% off$0.1344—

Key differences

The biggest lead each one has.

Where db.t4g.large leads
On-demand price$0.129 vs $0.168 per hour
23% cheaper
CPU modelEarns credits while idle, then bursts
Burstable
EBS baseline IOPS4,000 vs 3,600
11% higher
Where db.m8g.large 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 clock2.8 GHz vs 2.5 GHz
12% higher

Specs

12 of 19 specs differ. Those are in bold.

Compute2 of 7 differdb.t4g.largedb.m8g.large
vCPUs22
Physical cores22
Threads per core11
Architecturearm64arm64
CPU makerAWSAWS
Sustained clock2.5 GHz2.8 GHz
BurstableYesNo
MemoryAll 1 matchdb.t4g.largedb.m8g.large
Memory (GiB)88
Networking2 of 2 differdb.t4g.largedb.m8g.large
Network baseline0.512 Gbps0.937 Gbps
Network peak5 Gbps12.5 Gbps
Storage6 of 6 differdb.t4g.largedb.m8g.large
EBS baseline bandwidth695 Mbps630 Mbps
EBS max bandwidth2,780 Mbps10,000 Mbps
EBS baseline throughput86.875 MB/s78.75 MB/s
EBS max throughput347.5 MB/s1,250 MB/s
EBS baseline IOPS4,0003,600
EBS max IOPS15,70040,000
Instance details1 of 2 differdb.t4g.largedb.m8g.large
Familyt4gm8g
Normalization factor44
Other1 of 1 differdb.t4g.largedb.m8g.large
Hardware Basist4g.largem8g.large

On-demand prices by region

Cheapest for db.t4g.large first. PostgreSQL, USD per hour.

Regiondb.t4g.largedb.m8g.largeDifference
US East (N. Virginia)Used in summaryus-east-1$0.129$0.168▲ 30%
US East (Ohio)us-east-2$0.129$0.168▲ 30%
US West (Oregon)us-west-2$0.129$0.168▲ 30%
EU (Stockholm)eu-north-1$0.13$0.177▲ 36%
EU (Ireland)eu-west-1$0.138$0.186▲ 35%
Europe (Spain)eu-south-2$0.14$0.186▲ 33%
EU (London)eu-west-2$0.145$0.195▲ 34%
EU (Milan)eu-south-1$0.145$0.197▲ 36%
EU (Paris)eu-west-3$0.145$0.195▲ 34%
EU (Frankfurt)eu-central-1$0.149$0.2▲ 34%
Canada West (Calgary)ca-west-1$0.158$0.186▲ 18%
Africa (Cape Town)af-south-1$0.164$0.222▲ 35%
Europe (Zurich)eu-central-2$0.164$0.221▲ 35%
Asia Pacific (Hyderabad)ap-south-2$0.167$0.24▲ 44%
Asia Pacific (Mumbai)ap-south-1$0.167$0.24▲ 44%
US West (N. California)us-west-1$0.171$0.192▲ 12%
Asia Pacific (Malaysia)ap-southeast-5$0.183$0.199▲ 9%
Asia Pacific (Tokyo)ap-northeast-1$0.202$0.234▲ 16%
Asia Pacific (Seoul)ap-northeast-2$0.203$0.2344▲ 15%
Asia Pacific (Singapore)ap-southeast-1$0.203$0.234▲ 15%
Asia Pacific (Sydney)ap-southeast-2$0.203$0.234▲ 15%
Asia Pacific (Hong Kong)ap-east-1$0.222$0.258▲ 16%
South America (Sao Paulo)sa-east-1$0.275$0.2671▼ 3%

Keep exploring

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

db.t4g.larget4g family, burstable
db.t4g.large prices and specsEvery size in the t4g family

Compare db.t4g.large with

db.m6g.largedb.m6gd.largedb.m7g.largedb.m8gd.largedb.m9g.large
db.m8g.largem8g family
db.m8g.large prices and specsEvery size in the m8g family

Compare db.m8g.large with

db.m8i.largedb.r8g.largedb.m8a.largedb.m8gd.largedb.m7g.largedb.m9g.large

Pay the committed rate, with commitment protection

The best committed rate on these two is 28–53% 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.