Benchmarks for r8i-flex.large (AWS)
Individual CPU benchmark results for the AWS EC2 instance type r8i-flex.large. The table displays the single-threaded CPU speed as reported by the
Passmark benchmark tool, as well as the on-demand, spot pricing, and spot
interruption percentage.
See the benchmarks for all EC2 instances.
â This instance type is available for self-hosted GitHub Actions runners using RunsOn.
EC2 Instance family: r8i-flex
CPU Type: Custom Intel Xeon 6 processors (Granite Rapids) with a sustained all-core turbo frequency of 3.9 GHz. Specific Features: Memory-optimized "Flex" instance, designed for workloads that do not fully utilize all compute resources, offering up to 5% better price-performance than R8i and a baseline CPU performance of 40% with the ability to burst to 100% CPU performance 95% of the time over a 24-hour period. It uses DDR5 7200MT/s memory for 2.5x higher memory throughput and features 4.6x larger L3 cache compared to the previous generation. It is built on the AWS Nitro System. Date of Release: August 2025.
Results
This benchmark has been generated using the r8i-flex.large instance type.
Results are averaged over many days (you can mouse over the sparline to get more
details).
ðšðļ North Virginia (us-east-1)
| Family | Instance type | Processor | CPU speed (avg) | $/hour on-demand | $/hour spot (avg) | Spot savings over on-demand | Spot % interruption |
|---|---|---|---|---|---|---|---|
r8i-flex | r8i-flex.large | Intel Xeon 6975P-C (x86_64) | 3209 | 0.1320 | 0.0350 | 88% | 5-10% |
ðšðļ Oregon (us-west-2)
| Family | Instance type | Processor | CPU speed (avg) | $/hour on-demand | $/hour spot (avg) | Spot savings over on-demand | Spot % interruption |
|---|---|---|---|---|---|---|---|
r8i-flex | r8i-flex.large | Intel Xeon 6975P-C (x86_64) | 3209 | 0.1320 | 0.0530 | 88% | 5-10% |
ðŪðŠ Ireland (eu-west-1)
| Family | Instance type | Processor | CPU speed (avg) | $/hour on-demand | $/hour spot (avg) | Spot savings over on-demand | Spot % interruption |
|---|---|---|---|---|---|---|---|
r8i-flex | r8i-flex.large | Intel Xeon 6975P-C (x86_64) | 3209 | Not available | Not available | - | - |
ðĐðŠ Frankfurt (eu-central-1)
| Family | Instance type | Processor | CPU speed (avg) | $/hour on-demand | $/hour spot (avg) | Spot savings over on-demand | Spot % interruption |
|---|---|---|---|---|---|---|---|
r8i-flex | r8i-flex.large | Intel Xeon 6975P-C (x86_64) | 3209 | 0.1592 | 0.0622 | - | - |
About those benchmarks
Benchmarks are performed using the Passmark benchmarking tool, using the CPU Single Threaded metric.