Die 4TB Flash-Speicher, die Apple da verbaut, kriegst Du nicht zu kaufen und der Speicher ist deutlich schneller als eine SSD. *afaik*

"With regard to PCIe, Apple has been a pioneer when it comes to PCIe/NVMe storage," said Jeff Janukowicz, research vice president at IDC. "They were the first PC company to broadly adopt it across its laptop portfolio while other companies today are still just using it in a very limited portion of their PC lineup."

By adopting the PCIe/NVMe standard, Apple has been able to deliver higher performance in terms of read/write speeds and latency when compared to traditional SATA-based PC designs, "thus, making the new MacBook Pro more responsive and faster," Janukowicz said.

s.a. https://www.computerworld.com/article/3136714/data-storage/apples-new-macbook-pro-may-be-the-worlds-fastest-stock-laptop.html

Gemäss diesem Artikel ist der Flash-Speicher von Apple zw. 4 bis 6 mal schneller als herkömmliche SSDs (z.B. Samsung EVO 850).
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Christian, MacFix.