Whispers from the tech community suggest Nvidia’s next-generation RTX 5090 GPU might feature a staggering 128GB of VRAM, a massive leap from the anticipated 32GB. This potential upgrade, reportedly seen in a prototype, is fueling speculation about its capabilities, particularly for AI workloads, and its eye-watering price tag.
Key Takeaways
- A prototype RTX 5090 has reportedly been spotted with 128GB of VRAM.
- This massive memory increase is speculated to be for AI workloads.
- The prototype is rumored to use GDDR7X memory, which is not yet widely available.
- A potential price point of around $13,200 USD has been circulating.
- Concerns exist regarding the authenticity and feasibility of such a high-capacity VRAM configuration.
A Quadruple Memory Leap
Recent reports indicate a “prototype” Nvidia GeForce RTX 5090 equipped with an astonishing 128GB of VRAM, a significant increase from the standard 32GB GDDR7 memory expected for the consumer flagship. This modification, allegedly originating from China, is said to utilize GDDR7X memory, pushing the boundaries of current memory technology. The sheer capacity is drawing comparisons to professional workstation cards, hinting at a strong focus on AI and demanding computational tasks.
Another fun 5090 128G prototype super limited with ~13.2k USD price pic.twitter.com/d0ypVglfII
— I_Leak_VN (@I_Leak_VN) September 7, 2025
The Mystery of the 128GB VRAM
Details surrounding how this 128GB capacity is achieved remain scarce. Current GDDR7 memory modules typically top out at 24 Gbit (3GB) per module. To reach 128GB, it’s theorized that either unreleased 32 Gbit GDDR7 chips are being used, or a highly complex custom PCB design is in play, possibly utilizing a dual-sided configuration with memory chips on both the top and bottom of the board. Some reports suggest this might be an engineering sample rather than a modified consumer card, with a price tag of approximately $13,200, significantly higher than the expected MSRP of a standard RTX 5090.
Skepticism and Speculation
Despite the excitement, skepticism surrounds the existence of this 128GB RTX 5090. Questions have been raised about the availability of GDDR7X memory chips with the required density and the authenticity of the reported specifications. Some analysts suggest that the high price and the “prototype” designation might indicate a limited-run product or even a misinterpretation of existing hardware. Furthermore, early listings for pre-built PCs featuring the RTX 5090 have appeared, with one German retailer briefly listing an Acer Predator Orion 7000 system with an RTX 5090 for €5,999, hinting at a premium price point for the upcoming GPU.
Future Implications
If a 128GB RTX 5090 were to become a reality, it would undoubtedly set a new benchmark for consumer GPUs, particularly for AI development and other memory-intensive applications. However, until official confirmation from Nvidia, these reports should be treated with caution. The tech world will be eagerly awaiting further details on Nvidia’s next-generation offerings.
Via Tom’s Hardware
