z1d.6xlargeAWS Pricing, Specs & Benchmarks

The z1d family is a generation-1 high-frequency compute line running on Intel Xeon (x86_64). z1d.6xlarge provides 24 vCPUs and 192GB of RAM (a 1:8 vCPU-to-memory ratio), priced at $2.2320/hr On-Demand — about $1607.04 per month at 24×7 utilization. In Sysbench CPU benchmarks it scores 1368 single-core and 25318 multi-core.

High-frequency compute instances are sized for electronic design automation, certain relational databases, and workloads that benefit from the highest single-thread performance AWS offers. If your workload doesn't match that profile — for example, if you're running a memory-bound app on a compute-optimized instance, or a CPU-pegged batch job on a burstable t-series — you'll likely pay for capacity you can't use or run into bottlenecks you didn't anticipate. The pages for sibling families (linked further down) cover those alternatives in detail.

In the AWS instance-naming convention, the digit after the series letter is the generation — higher is newer. This appears to be one of AWS's newer generations in the series, so for most fresh workloads it's a reasonable default within its category. The family suffix tells you about hardware variants: "d" = local NVMe instance-store volumes (lost when the instance stops).

Pricing varies by region (sometimes meaningfully — the gap between the cheapest and most expensive AWS region for the same SKU is often 15–30%). The regional pricing table further down shows where z1d.6xlarge is cheapest today, both On-Demand and Spot. Spot pricing for z1d.6xlarge is currently $0.7615/hr — roughly 66% off On-Demand — which makes the instance viable for fault-tolerant batch jobs, CI fleets, and any workload that can tolerate interruption with short notice.