Cloud Cost Calculator
scalyr.com
scalyr.com
For more discussion and some interesting results, check out http://blog.scalyr.com/2013/11/11/cloud-cost-calculator/.
http://serverbear.com/compare?Sort=RAM&Order=desc&Monthly+Co...
I'll look into getting the c3 instances added.
I don't know exactly what form this effort might take, but if you're interested in discussing further, drop me a line -- steve@ our domain.
We're open to suggestions here. For now, we've noted this caveat in the blog post and in a couple of places on the page, and we deliberately didn't include any sample queries that sort by cores.
Awesome calculator BTW! I really needed something like this.
As for the GB/$: by default we display prices assuming you'll use the server 24 hours a day for one month. That means that if you take a reservation, you'll be reselling it a month later. It turns out that a 1-year light reservation is best here (assuming you can resell for the full pro-rated value): with a heavy reservation Amazon's 10% cut on the resale is too expensive, whereas with no reservation the hourly rate kills you.
To help decide what to bid, I made a small app that continuously collects and graphs historical spot prices:
For example, the "Cheapest servers with at least 16GB of RAM" lists a Digital Ocean 16GB server, 8 cores for $7.247/mth.
Looking on their site, I see that this would cost $160/mth.
Am I missing something?
We did struggle with how to present all these options clearly without creating a gigantic form. Suggestions welcomed!
By default, we assume a 10% cost-of-capital, which leads to the $706/month figure you see otherwise for cr1.8xlarge over 36 months. The difference reflects the fact that, all other things being equal, paying a lump sum up front is generally less desirable than month-to-month payments. You can adjust the interest rate parameter according to your situation.