Nvidia RTX 6090 Rubin: First GPU Generation Revealed
- This article discusses the upcoming NVIDIA Rubin CPX GPU, primarily focused on its AI acceleration capabilities, but also explores its potential implications for a future GeForce gaming card...
- * Memory: Will feature 128GB of memory, a significant increase over Blackwell GPUs (max 3, frequently enough less in gaming models).
- * Shared Architecture: The article suggests the Rubin CPX chip could be a secondary chip planned for gaming, potentially becoming the RTX 6090.
Summary of the Article: NVIDIA Rubin CPX & potential GeForce RTX 6090
This article discusses the upcoming NVIDIA Rubin CPX GPU, primarily focused on its AI acceleration capabilities, but also explores its potential implications for a future GeForce gaming card (potentially the RTX 6090). HereS a breakdown of the key points:
rubin CPX (AI Focused):
* Memory: Will feature 128GB of memory, a significant increase over Blackwell GPUs (max 3, frequently enough less in gaming models). This is achieved with a 512-bit memory bus.
* memory Chip Configuration: The 128GB could be realized using either:
* Twice the number of chips as current RTX 5090 (using 32GB/4GB GDDR7 chips)
* A 1024-bit bus with 16GB GDDR7 chips (less likely).
* Role: Designed for AI inference with large models adn will be used in NVIDIA Rack systems alongside a larger “RUBIN” GPU (R200).
Potential GeForce RTX 6090 (Gaming Focused):
* Shared Architecture: The article suggests the Rubin CPX chip could be a secondary chip planned for gaming, potentially becoming the RTX 6090. However, NVIDIA is unlikely to release it as such.
* shader Count (Speculation): Based on a visualization of the chip, estimates suggest:
* 16 GPC blocks * 6 TPC per GPC = 192 SM blocks = 24,576 shaders.
* Potentially up to 256 SM blocks = 32,768 shaders (if GPC blocks contain 8 TPC).
* Defective Units: Like current GPUs, some units will likely be disabled in the gaming version to utilize chips with defects.
* Production Process: Likely 3nm or 2nm process via TSMC.
* Size: expected to be large, around 600-800 mm².
Key Takeaways:
* NVIDIA is pushing the boundaries of GPU memory capacity with the Rubin CPX.
* The architecture could be adapted for gaming, but NVIDIA’s plans are unclear.
* The potential RTX 6090 (if it exists) could be a very powerful card with a high shader count.
* The article relies on analysis of visualizations and speculation, as NVIDIA hasn’t released official details about a gaming version.