17999的iPhone用了“更差”的闪存，但我觉得这是好事

Core Viewpoint - The article discusses the pricing and technology behind the new iPhone 17 Pro Max, particularly focusing on the controversial use of QLC (Quad-Level Cell) NAND flash storage in its highest configuration, which is priced at 17,999 RMB for 2TB, making it the most expensive iPhone ever [5][19]. Pricing Analysis - The starting price of the new iPhone is perceived as competitive, but the top-tier model's price has reached an unprecedented level, with the 2TB version costing 4,000 RMB more than the 1TB version [5][19]. - The article highlights the stark contrast in value, suggesting that the additional 4,000 RMB could buy several 2TB SSDs from other brands [5]. Technology Overview - The iPhone 17 Pro Max's 2TB storage option likely utilizes QLC NAND flash, which is a departure from the traditional use of multiple lower-capacity TLC chips [8][19]. - QLC technology allows for higher storage density but comes with trade-offs in terms of performance and longevity compared to SLC, MLC, and TLC [11][13]. NAND Flash Types - NAND flash types include SLC (Single-Level Cell), MLC (Multi-Level Cell), TLC (Triple-Level Cell), and QLC, with QLC storing the most bits per cell but having lower endurance and speed [11][15]. - QLC's lower endurance is highlighted, with a lifespan of approximately 1,000 write cycles compared to SLC's 100,000 cycles [15][16]. Performance Considerations - Despite concerns about QLC's performance, the article argues that for typical smartphone usage, the lifespan of QLC storage is sufficient, estimating that a 2TB QLC drive could last nearly 30 years under normal conditions [19][21]. - The use of SLC caching is mentioned as a method to mitigate QLC's slower write speeds, allowing for faster data handling in everyday use [23][24]. Market Implications - The adoption of QLC in smartphones may lead to more affordable high-capacity storage options in the future as supply chains mature [28]. - The article suggests that while consumers may initially be wary of QLC, its integration into devices like the iPhone could ultimately benefit the market by providing larger storage capacities at lower prices [28][29].