SummaryCompaniesRTX6000D not cost-effective; better card can be found on grey market, sources sayTech firms awaiting clarity on H20 orders, potential B30A chip, sources sayAnalysts had projected strong production runs for the RTX6000DBEIJING/SHANGHAI, Sept 16 (Reuters) - Nvidia's (NVDA.O), opens new tab RTX6000D, its newest artificial intelligence chip tailored for the Chinese market, has seen only lukewarm demand with some major tech firms opting not to place orders, two people with knowledge o...