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Gavin Hamil

Hey Jeff,

I see the ECU values are still 'to be decided' - is it fair to assume that a new r3.large will have at least the same CPU power as an m1.large (4 ECU) ?


Jeff Barr

The team has yet to provide me with the final ECU numbers for the R3’s. I will be sure to include them as part of the blog post for the launch.

Shamik Bandopadhyay

Awesome, was looking forward to this after the AWS summit. Any ballpark timeline when these instances will be available ?


Please correct me but would it be right to assume that one ECU = 1.0 +/- GHz.
Essentially being half a core.

Or does AWS now guarantee 2.0GHz per ECU ?


How come they are not available for Linux?

Jeff Barr

The R3 instances are definitely available for Linux. You need to use an HVM-style AMI in order to see the R3’s as an option.

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