cache.r7g.4xlargevscache.r8g.4xlarge

cache.r7g.4xlarge is 1% cheaper than cache.r8g.4xlarge on demand in US East (N. Virginia), saving $7.66 a month.

At a glancecache.r7g.4xlargecache.r8g.4xlarge
On-demand$1.745/hr1% less$1.756/hr
Lowest rate$0.907/hr1% less3-yr reserved, no upfront$0.9129/hr3-yr reserved, no upfront
Size16 vCPUs, 105.81 GiB16 vCPUs, 124.65 GiB
Architecturearm64arm64

Prices in US East (N. Virginia)

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

Optioncache.r7g.4xlargecache.r8g.4xlargecache.r8g.4xlarge vs cache.r7g.4xlarge
On-demandPay by the hour$1.745$1.756▲ 1%
1-yr reservedNo upfront32% off$1.18732% off$1.194▲ 1%
3-yr reservedNo upfront48% off$0.90748% off$0.9129▲ 1%

Key differences

The biggest lead each one has.

Where cache.r7g.4xlarge leads
On-demand price$1.745 vs $1.756 per hour
1% cheaper
Where cache.r8g.4xlarge leads
Memory (GiB)124.65 vs 105.81
18% higher
Sustained clock2.8 GHz vs 2.6 GHz
8% higher

Specs

5 of 16 specs differ. Those are in bold.

Compute1 of 7 differcache.r7g.4xlargecache.r8g.4xlarge
vCPUs1616
Physical cores1616
Threads per core11
Architecturearm64arm64
CPU makerAWSAWS
Sustained clock2.6 GHz2.8 GHz
BurstableNoNo
Memory1 of 1 differcache.r7g.4xlargecache.r8g.4xlarge
Memory (GiB)105.81124.65
NetworkingAll 3 matchcache.r7g.4xlargecache.r8g.4xlarge
NetworkUp to 15 GigabitUp to 15 Gigabit
Network baseline7.5 Gbps7.5 Gbps
Network peak15 Gbps15 Gbps
Instance details2 of 4 differcache.r7g.4xlargecache.r8g.4xlarge
Familyr7gr8g
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor3225.6
Other1 of 1 differcache.r7g.4xlargecache.r8g.4xlarge
Hardware Basisr7g.4xlarger8g.4xlarge

On-demand prices by region

Cheapest for cache.r7g.4xlarge first. Redis, USD per hour.

Regioncache.r7g.4xlargecache.r8g.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.745$1.756▲ 1%
US East (Ohio)us-east-2$1.745$1.756▲ 1%
US West (Oregon)us-west-2$1.745$1.756▲ 1%
US West (N. California)us-west-1$1.746$1.95▲ 12%
Asia Pacific (Malaysia)ap-southeast-5$1.78$1.80▲ 1%
Asia Pacific (Thailand)ap-southeast-7$1.78$1.80▲ 1%
Asia Pacific (Mumbai)ap-south-1$1.794$1.523▼ 15%
Asia Pacific (Hyderabad)ap-south-2$1.795$1.53▼ 15%
Mexico (Central)mx-central-1$1.832$1.843▲ 1%
EU (Stockholm)eu-north-1$1.847$1.867▲ 1%
Canada West (Calgary)ca-west-1$1.907$1.923▲ 1%
Canada (Central)ca-central-1$1.908$1.923▲ 1%
EU (Ireland)eu-west-1$1.947$1.964▲ 1%
Europe (Spain)eu-south-2$1.948$1.964▲ 1%
EU (Milan)eu-south-1$2.037$2.057▲ 1%
EU (Paris)eu-west-3$2.037$2.062▲ 1%
EU (London)eu-west-2$2.044$2.062▲ 1%
AWS GovCloud (US-East)us-gov-east-1$2.09$2.104▲ 1%
AWS GovCloud (US-West)us-gov-west-1$2.09$2.104▲ 1%
Asia Pacific (Seoul)ap-northeast-2$2.09$2.118▲ 1%
Asia Pacific (Jakarta)ap-southeast-3$2.093$2.118▲ 1%
Asia Pacific (Melbourne)ap-southeast-4$2.093$2.104▲ 1%
Asia Pacific (Sydney)ap-southeast-2$2.093$2.104▲ 1%
Asia Pacific (Tokyo)ap-northeast-1$2.093$2.118▲ 1%
Asia Pacific (Singapore)ap-southeast-1$2.094$2.118▲ 1%
EU (Frankfurt)eu-central-1$2.10$2.118▲ 1%
Asia Pacific (Osaka)ap-northeast-3$2.10$2.118▲ 1%
Asia Pacific (New Zealand)ap-southeast-6$2.198$2.209▲ 1%
Asia Pacific (Hong Kong)ap-east-1$2.298$2.327▲ 1%
Europe (Zurich)eu-central-2$2.311$2.329▲ 1%
Africa (Cape Town)af-south-1$2.321$2.341▲ 1%
South America (Sao Paulo)sa-east-1$3.49$2.794▼ 20%

Keep exploring

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

cache.r7g.4xlargeMemory optimized, r7g family
cache.r7g.4xlarge prices and specsEvery size in the r7g family

Compare cache.r7g.4xlarge with

cache.m7g.4xlargecache.r7gd.4xlargecache.r6g.4xlarge
cache.r8g.4xlargeMemory optimized, r8g family
cache.r8g.4xlarge prices and specsEvery size in the r8g family

Compare cache.r8g.4xlarge with

cache.m8g.4xlargecache.r8gd.4xlarge

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