EC2 推出了 R5、R5d、z1d 三種機器...

上個禮拜 Amazon EC2 就放話預定要推出 r5r5dz1d 三種機器,但當時沒公佈價錢,只公佈了規格,這樣就沒辦法比較成本。尤其 R 系列的機器主要就是看記憶體的單位成本...

今天總算是正式推出公開價錢了:「Now Available: R5, R5d, and z1d Instances」。

r{4,5}.large 比較,都是 2 vCPU,但 r5 的 ECU 快了一些,記憶體多了一些,價錢少了一些:

vCPU ECU Memory (GiB) Instance Storage (GB) Linux/UNIX Usage
r5.large 2 8 16 GiB EBS Only $0.126 per Hour
r4.large 2 7 15.25 GiB EBS Only $0.133 per Hour

完全是個「麵多一點、湯多一點,但錢少一點」的概念 XD

另外這次推出的 z1d 系列主打高時脈:

The high frequency z1d instances use custom Intel® Xeon® Scalable Processors running at up to 4.0 GHz, powered by sustained all-core Turbo Boost, perfect for Electronic Design Automation (EDA), financial simulation, relational database, and gaming workloads that can benefit from extremely high per-core performance.

vCPU ECU Memory (GiB) Instance Storage (GB) Linux/UNIX Usage
z1d.large 2 11 16 GiB 1 x 75 NVMe SSD $0.186 per Hour

對於沒有辦法利用平行化加速的工作會有幫助,不過在目前 EC2 的價位表上面大概是因為比 r4 的記憶體還多,所以放在「Memory Optimized - Current Generation」而不是 Compute Optimized,不知道實際上用的時候會偏向哪塊...

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