Persistent memory shortages and surging AI-driven demand continue to constrain RTX 5090 supply nearly 18 months after its January 2025 launch, keeping consumer GPU rental rates elevated near current medians of $0.58–$0.68 per hour on major platforms. Traders see the $0.50–$0.55 band as the most likely outcome by late October because GDDR7 allocation priorities favor high-margin data-center chips, limiting new consumer inventory through year-end. Recent price tracking shows modest week-to-week softening on decentralized marketplaces, yet street hardware premiums above $4,000 underscore sustained scarcity that rental providers have not fully offset. No near-term catalysts—such as accelerated Blackwell production ramps or major new capacity announcements—appear positioned to materially ease pressure before October, supporting the market-implied consensus around the mid-$0.50 range.