x8g.16xlarge vs x8i.16xlarge

Accelerators
Instance Type	x8g.16xlarge	x8i.16xlarge
Instance Family	Memory optimized	Memory optimized
Details	In-memory databases (like SAP HANA), big data engines (such as Apache Spark, Presto), high-performance computing (HPC), and memory-heavy enterprise apps. x – Extreme RAM / memory intensive 8 – Generation g – AWS Graviton processor 16xlarge – Size	In-memory databases (like SAP HANA), big data engines (such as Apache Spark, Presto), high-performance computing (HPC), and memory-heavy enterprise apps. x – Extreme RAM / memory intensive 8 – Generation i – Intel processor 16xlarge – Size
vCPUs	64	64
Memory	1024 GiB	1024 GiB
CPU Architecture	arm64	x86_64
Processor	AWS Graviton4 Processor	Intel Xeon Scalable (Granite Rapids)
Clock Speed	2.8 GHz	3.9 GHz
Threads Per Core	1	2
GPU	no	no
Inference Accelerator	no	no
FPGA	no	no
Instances
Sizes	x8g.12xlarge, x8g.16xlarge, x8g.24xlarge, x8g.2xlarge, x8g.48xlarge, x8g.4xlarge, x8g.8xlarge, x8g.large, x8g.medium, x8g.metal-24xl, x8g.metal-48xl, x8g.xlarge	x8i.12xlarge, x8i.16xlarge, x8i.24xlarge, x8i.2xlarge, x8i.32xlarge, x8i.48xlarge, x8i.4xlarge, x8i.64xlarge, x8i.8xlarge, x8i.96xlarge, x8i.large, x8i.metal-48xl, x8i.metal-96xl, x8i.xlarge
Variants	x8i.16xlarge	x8g.16xlarge
Free Tier	no	no
Burstable	no	no
Hibernation	no	no
Instance Storage	EBS only	EBS only
EBS (Elastic Block Store)
EBS Optimized	default	default
Encryption	supported	supported
NVMe	required	required
Dedicated Throughput	20480 MBps	20000 MBps
Optimized Baseline Bandwidth	20000 Mbps	20000 Mbps
Optimized Baseline Throughput	2500 Mbps	2500 Mbps
Optimized Baseline Performance	80000 IOPS	80000 IOPS
Optimized Max Performance	80000 IOPS	80000 IOPS
Optimized Max Bandwidth	20000 Mbps	20000 Mbps
Optimized Max Throughput	2500 Mbps	2500 Mbps
Networking
Networking Performance	30 Gigabit	30000 Megabit
Enhanced Networking	yes	yes
Max Interfaces	15	16
Max Cards	1	1
IPv4 Addresses per Interface	50	64
IPv6 Addresses per Interface	50	64
IPv6 Support	yes	yes
ENA Support	required	required
EFA Support	no	no
Encryption in Transit Support	yes	yes
ENA SRD Support	yes	no
Avg Price Diff	1.00x	1.11x

Regional Prices

Geography	Region	x8g.16xlarge	x8i.16xlarge
Hidden	Hidden (hidden-1)	7.1187	7.9859
Hidden	Hidden (hidden-2)	7.5034	9.8038
Hidden	Hidden (hidden-3)	8.7392	n/a
US	US East (Ohio) (us-east-2)	6.2528	7.0026
US	US East (Virginia) (us-east-1)	6.2528	7.0026
US	US West (Oregon) (us-west-2)	6.2528	7.0026