cache.r4.2xlargevscache.r5.2xlarge

cache.r5.2xlarge is 5% cheaper than cache.r4.2xlarge on demand in US East (N. Virginia), saving $35.04 a month.

At a glancecache.r4.2xlargecache.r5.2xlarge
On-demand$0.91/hr$0.862/hr5% less
Size8 vCPUs, 50.47 GiB8 vCPUs, 52.82 GiB

Prices in US East (N. Virginia)

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

Optioncache.r4.2xlargecache.r5.2xlargecache.r5.2xlarge vs cache.r4.2xlarge
On-demandPay by the hour$0.91$0.862▼ 5%
1-yr reservedNo upfront—32% off$0.59—
3-yr reservedNo upfront—48% off$0.448—

Key differences

The biggest lead each one has.

Where cache.r4.2xlarge leads

No clear lead on the measures we compare.

Where cache.r5.2xlarge leads
On-demand price$0.862 vs $0.91 per hour
5% cheaper
Sustained clock3.1 GHz vs 2.3 GHz
35% higher
Memory (GiB)52.82 vs 50.47
5% higher

Specs

4 of 15 specs differ. Those are in bold.

Compute1 of 6 differcache.r4.2xlargecache.r5.2xlarge
vCPUs88
Physical cores44
Threads per core22
CPU makerIntelIntel
Sustained clock2.3 GHz3.1 GHz
BurstableNoNo
Memory1 of 1 differcache.r4.2xlargecache.r5.2xlarge
Memory (GiB)50.4752.82
NetworkingAll 3 matchcache.r4.2xlargecache.r5.2xlarge
NetworkUp to 10 GigabitUp to 10 Gigabit
Network baseline2.5 Gbps2.5 Gbps
Network peak10 Gbps10 Gbps
Instance details1 of 4 differcache.r4.2xlargecache.r5.2xlarge
Familyr4r5
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor1616
Other1 of 1 differcache.r4.2xlargecache.r5.2xlarge
Hardware Basisr4.2xlarger5.2xlarge

On-demand prices by region

Cheapest for cache.r4.2xlarge first. Redis, USD per hour.

Regioncache.r4.2xlargecache.r5.2xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.91$0.862▼ 5%
US East (Ohio)us-east-2$0.91$0.862▼ 5%
US West (Oregon)us-west-2$0.91$0.862▼ 5%
Asia Pacific (Mumbai)ap-south-1$0.985$0.889▼ 10%
Canada (Central)ca-central-1$1.001$0.944▼ 6%
EU (Ireland)eu-west-1$1.014$0.961▼ 5%
US West (N. California)us-west-1$1.014$0.961▼ 5%
EU (London)eu-west-2$1.065$1.009▼ 5%
EU (Paris)eu-west-3$1.065$1.009▼ 5%
Asia Pacific (Osaka)ap-northeast-3$1.092$1.035▼ 5%
Asia Pacific (Seoul)ap-northeast-2$1.092$1.035▼ 5%
Asia Pacific (Singapore)ap-southeast-1$1.092$1.035▼ 5%
Asia Pacific (Sydney)ap-southeast-2$1.092$1.035▼ 5%
Asia Pacific (Tokyo)ap-northeast-1$1.092$1.035▼ 5%
AWS GovCloud (US-East)us-gov-east-1$1.092$1.035▼ 5%
AWS GovCloud (US-West)us-gov-west-1$1.092$1.035▼ 5%
EU (Frankfurt)eu-central-1$1.095$1.037▼ 5%
South America (Sao Paulo)sa-east-1$1.819$1.728▼ 5%

Keep exploring

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

cache.r4.2xlargeMemory optimized, r4 family
cache.r4.2xlarge prices and specsEvery size in the r4 family

Compare cache.r4.2xlarge with

cache.m4.2xlarge
cache.r5.2xlargeMemory optimized, r5 family
cache.r5.2xlarge prices and specsEvery size in the r5 family

Compare cache.r5.2xlarge with

cache.m5.2xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 0–48% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

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