DDR4报价仍高于DDR5，NAND价格出现单日多调情况

Group 1 - The core viewpoint of the article highlights the ongoing fluctuations in the DRAM and NAND flash markets, with significant price increases observed in both sectors [2][4]. Group 2 - In the DRAM market, the price of mainstream DDR4 1Gx8 3200MT/s chips increased by 10.73% this week, rising from US$14.914 to US$16.514, indicating a sustained high price level without signs of decline [2]. Group 3 - The NAND flash market is experiencing a psychological drive due to expectations of extreme supply tightness, leading to multiple daily price adjustments. The price of 512Gb TLC wafers rose by 5.90% this week, reaching US$9.607 [4].