The U.S.-China rivalry is increasingly centered on semiconductor and rare-earth chokepoints as Japan tries to revive its chip industry and secure a strategically vital role in global supply chains. https://www.japantimes.co.jp/commentary/2026/05/18/japan/us-china-semiconductor-chokepoints/?utm_medium=Social&utm_source=mastodon #commentary #japan #us #china #donaldtrump #taiwan #southkorea #chipsandscienceact #nvidia #h20 #h200 #huawei #tsmc #rapidus #apple #semiconductors #microchips
Semiconductor chokepoints define U.S.-China rivalry

Two chokepoints now stand out: advanced semiconductors for China and rare-earth minerals for the United States.

The Japan Times
中媒連夜撤回 H200「開綠燈」報導 | Trump 證實:中國拒買 H200 原因想自研晶片
日前傳出美國商務部已批准阿里巴巴、騰訊等 10 家中國企業採購輝達(NVIDIA)H200 晶片的消息,市場動 […]
#人工智能 #AI #H200 #NVIDIA
https://unwire.hk/2026/05/16/china_dont_buy_h200/ai/?utm_source=rss&utm_medium=rss&utm_campaign=china_dont_buy_h200
📉 #Nvidia pierde $170B en valor tras confirmar que no vendió chips #H200 a China. La tensión geopolítica impacta en el sector tech.
The #US has #approved around 10 Chinese firms, including #Alibaba and #Tencent, to purchase #Nvidia’s #H200 #AIchips. However, sales have stalled due to pressure from Beijing, which is prioritising the development of domestic AI chips and is wary of potential vulnerabilities in the chips. https://www.reuters.com/business/retail-consumer/us-clears-h200-chip-sales-10-china-firms-nvidia-ceo-looks-breakthrough-2026-05-14/?eicker.news #tech #media #news
美解禁H200晶片!北京「禁購令」暗中保護華為 雷軍追星馬斯克 自我定位矛盾 2026-05-15《香港新聞連線》
https://www.youtube.com/watch?v=7JVLPMSh388
美解禁H200晶片!北京「禁購令」暗中保護華為 雷軍追星馬斯克 自我定位矛盾 2026-05-15《香港新聞連線》

YouTube

Perplexity (@perplexity_ai)

GB200과 H200의 성능 비교 결과를 제시했다. NVLS all-reduce 지연시간과 MoE prefill/ combine 시간이 크게 줄었고, 디코드 단계에서도 고토큰 속도에서 더 높은 처리량을 유지해 대규모 모델 추론 성능 개선이 확인됐다.

https://x.com/perplexity_ai/status/2054204425833726353

#gb200 #h200 #benchmark #moe #inference

Perplexity (@perplexity_ai) on X

The benchmarks show the gap. NVLS all-reduce latency drops from 586.1µs on H200 to 313.3µs on GB200. In MoE prefill at EP=4, combine falls from 730.1µs to 438.5µs. For decode, GB200 sustains much higher throughput at high token speeds.

X (formerly Twitter)
Nvidia chip curbs turn Singapore into AI hub for China

US export controls aimed at restricting China’s access to Nvidia's AI chips are unlikely to stop Chinese firms from upgrading their AI models

IwPost
美國商務部長盧特尼克(Howard Lutnick)4月22日(周三)表示,英偉達(Nvidia,又輝達)強大的H200人工智能晶片尚未售給中國企業,原因是這些企業
https://www.hk01.com/即時國際/60342994/美商務部長-英偉達h200晶片尚未售予中國企業-指未獲北京許可

The introduction of the Vera Rubin platform shifts the calculus for AI infrastructure planning. As the industry moves toward HBM4, understanding hardware refresh cycles becomes a core component of fleet optimization.

While H100 and Blackwell GPUs remain key workhorses, secondary-market demand for current-gen accelerators has reached a unique inflection point. This analysis explores the technical and financial variables influencing hardware transitions as the industry prepares for the Rubin wave.

https://www.buysellram.com/blog/the-post-gtc-gpu-market-shift-when-to-liquidate-h100-h200-and-blackwell-assets/

#NVIDIA #TechStrategy #DataCenter #GPU #GraphicsCard #GPULiquidation #H100 #H200

The Post-GTC GPU Market Shift: When to Liquidate H100, H200 and Blackwell Assets

Liquidate H100, H200, and Blackwell GPUs at peak market value. Prepare for NVIDIA’s Vera Rubin platform with our B2B strategy for maximizing capital velocity.

BuySellRam
Nvidia halts H200 production as China backs Huawei AI chips

Nvidia has halted production of H200 artificial-intelligence chips intended for China amid Beijing’s policy of supporting domestic chips

IwPost