郭明錤：英伟达新AI芯片B300预计今年二季度试产
3月17日，天风国际证券分析师郭明錤发文称，英伟达新AI服务器的芯片与系统方案为GTC 2025硬件更新关键。新AI芯片B300为发布会关键重点，包括Dual-die（CoWoS-L）与Single-die（CoWoS-S），最大亮点为HBM自192GB显著升级至288GB，运算效能较B200提升50%（FP4）。B300预计在2Q25试产并于3Q25量产，提供算力更强且平均token成本更低的Scale-up与Scaling-out之参考设计方案。
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Pinterest (PINS) closed at $71.75 in the latest trading session, marking a -0.18% move from the prior day. This change lagged the S&P 500's daily gain of 0.1%. Meanwhile, the Dow gained 0.9%, and the Nasdaq, a tech-heavy index, lost 0.59%. Heading into today, shares of the digital pinboard and shopping tool company had lost 17.41% over the past month, lagging the Computer and Technology sector's loss of 5.38% and the S&P 500's gain of 0.71% in that time. Investors will be hoping for strength from PINS as it approaches its next earnings release. The company is expected to report EPS of $0.07, up 170% from the prior-year quarter. Our most recent consensus estimate is calling for quarterly revenue of $467.87 million, up 72.05% from the year-ago period.
Secret Chats are one of the service’s additional security features; it allows messages to be sent with client-to-client encryption. This setup means that, unlike regular messages, these secret messages can only be accessed from the device’s that initiated and accepted the chat. Additionally, Telegram notes that secret chats leave no trace on the company’s services and offer a self-destruct timer.
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