db.r4.16xlargevsdb.r5.16xlarge

db.r5.16xlarge is 0% cheaper than db.r4.16xlarge on demand in US East (N. Virginia), saving $1.17 a month.

At a glancedb.r4.16xlargedb.r5.16xlarge
On-demand$8.864/hr$8.862/hr0% less
Size64 vCPUs, 488 GiB64 vCPUs, 512 GiB
ProcessorIntel Xeon E5-2686 v4 (Broadwell)Intel Xeon Platinum 8175
Architecturex86_64x86_64

Prices in US East (N. Virginia)

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

Optiondb.r4.16xlargedb.r5.16xlargedb.r5.16xlarge vs db.r4.16xlarge
On-demandPay by the hour$8.864$8.862Same

Key differences

The biggest lead each one has.

Where db.r4.16xlarge leads
Network baseline25 Gbps vs 20 Gbps
25% higher
Where db.r5.16xlarge leads
On-demand price$8.862 vs $8.864 per hour
0% cheaper
Clock speedUp to 3.1 GHz vs 2.3 GHz
35% higher
Memory (GiB)512 vs 488
5% higher

Specs

9 of 19 specs differ. Those are in bold.

Compute4 of 10 differdb.r4.16xlargedb.r5.16xlarge
vCPUs6464
Physical cores3232
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon E5-2686 v4 (Broadwell)Intel Xeon Platinum 8175
CPU makerIntelIntel
Clock speed2.3 GHzUp to 3.1 GHz
Sustained clock2.3 GHz3.1 GHz
Processor featuresIntel AVX, Intel AVX2, Intel Turbo–
BurstableNoNo
Memory1 of 1 differdb.r4.16xlargedb.r5.16xlarge
Memory (GiB)488512
Networking2 of 3 differdb.r4.16xlargedb.r5.16xlarge
Network20 Gigabit20 Gigabit
Network baseline25 Gbps20 Gbps
Network peak25 Gbps20 Gbps
Instance details1 of 4 differdb.r4.16xlargedb.r5.16xlarge
Familyr4r5
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor128128
Other1 of 1 differdb.r4.16xlargedb.r5.16xlarge
Hardware Basisr4.16xlarger5.16xlarge

On-demand prices by region

Cheapest for db.r4.16xlarge first. Standard storage, USD per hour.

Regiondb.r4.16xlargedb.r5.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$8.864$8.862Same
US East (Ohio)us-east-2$8.864$8.862Same
US West (Oregon)us-west-2$8.864$8.862Same
EU (Ireland)eu-west-1$9.792$9.779Same

Keep exploring

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

db.r4.16xlargeMemory optimized, r4 family
db.r4.16xlarge prices and specsEvery size in the r4 family
db.r5.16xlargeMemory optimized, r5 family
db.r5.16xlarge prices and specsEvery size in the r5 family

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Amazon DocumentDB Standard storage prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.