Chinese AI factories have created a custom NVIDIA GeForce RTX 5090 variant with massive 128GB memory, quadrupling the standard 32GB capacity. Priced at $13,200, this specialized GPU targets AI workloads demanding extreme memory bandwidth.
Table of Contents
NVIDIA GeForce RTX 5090 128GB Specifications
| Specification | Standard RTX 5090 | Custom 128GB Variant |
|---|---|---|
| Memory Capacity | 32GB GDDR7 | 128GB GDDR7 |
| Memory Configuration | Single-sided PCB | Dual-sided PCB |
| Price (MSRP) | $1,999 | $13,200 |
| Real Market Price | $2,500-$3,000 | $13,200 |
| Target Use | Gaming/Content Creation | AI Workloads |
| Availability | Official NVIDIA | Chinese Factory Mod |
Chinese Factory Customization Process
Factories in China have been dedicated to producing custom AI GPUs based on the NVIDIA GeForce RTX lineup since the AI boom began. These facilities achieve memory modifications by salvaging GPUs and memory from gaming graphics cards, then equipping them to custom PCBs with dual-sided memory configurations.
The process isn’t simply component swapping – proper firmware and BIOS modifications ensure compatibility. Beyond memory upgrades, these factories also convert gaming GPUs into two-slot blower-style designs optimized for server and workstation environments.
Memory Architecture Details
The 128GB configuration uses higher-capacity GDDR7 memory dies, achieving 64GB on a single-sided PCB. The dual-sided PCB layout doubles the capacity to 128GB, providing unprecedented memory bandwidth for AI applications.
According to leaked information, the custom variant runs on driver version 550.144.03 and appears fully functional with complete 128GB memory recognition.
Pricing and Market Comparison
The standard NVIDIA GeForce RTX 5090 retails for $1,999 MSRP but realistically sells for $2,500-$3,000. The custom 128GB variant commands $13,200 – a 6.6x price premium for 4x the memory capacity.
For comparison, NVIDIA’s official RTX PRO 6000 Blackwell with 96GB VRAM costs around $10,000. The custom RTX 5090 128GB variant is 33% more expensive while offering 33% more memory than the professional Blackwell card.
Market Demand and Regional Factors
The popularity of custom VRAM designs is surprisingly strong in Asian markets, where users face high prices, tariffs, and trade restrictions on official AI GPUs. These custom solutions fill a market gap for AI researchers and developers seeking affordable high-memory graphics solutions.
Gaming applications have no practical use for 128GB VRAM currently, making these cards exclusively valuable for AI workloads, machine learning training, and large language model inference.
Legal and Support Considerations
Unlike NVIDIA’s official RTX PRO variants, the 128GB GeForce RTX 5090 is a custom modification without official NVIDIA approval. These cards are sold directly by Chinese factories to AI customers, potentially lacking warranty support and driver optimization.
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FAQs
Is the RTX 5090 128GB variant officially supported by NVIDIA?
No, this is a custom modification by Chinese factories without NVIDIA approval or warranty support.
Why does the 128GB variant cost 6.6x more for only 4x the memory?
Complex dual-PCB modifications, custom firmware, specialized manufacturing, and limited production volumes drive the premium pricing.
