NVIDIA Leaks: GB203 and GB205 Memory Specs Revealed
Recent rumors about the Blackwell architecture for gaming GPUs have been swirling, such as the GeForce RTX 50 series employing GDDR7 modules with a speed of 28 Gbps in 16Gb (2GB) configurations, potentially supporting 24Gb (3GB) modules, and speculation on whether the GB202’s memory interface width is 384-bit or 512-bit.
Insiders have leaked new information, suggesting that the GB203 will have a 256-bit memory interface, while the GB205 will have a 192-bit interface. If the GB202 indeed boasts a 512-bit width, it implies that its successor, the GB203, will have half the memory bandwidth, mirroring the rumored count of Streaming Multiprocessors (SMs) at 96 and 192 groups, respectively, indicating a significant disparity.
According to previous statements, the GeForce graphics cards based on the Blackwell architecture will feature five chips: GB202, GB203, GB205, GB206, and GB207. The most notable deviation from past releases is the absence of a GB204 chip, replaced instead by the GB205. Apart from GB202, GB203, and GB205, the remaining GB206 and GB207 chips will have a 128-bit memory interface width.
As of now, detailed specifications of the GB20x series chips are sparse, contrasting sharply with the extensively leaked AD10x series, whose specifications turned out to be remarkably accurate. This discrepancy is likely tied to NVIDIA’s security breach, which led to a massive leak of confidential information.
The GTC 2024 conference is scheduled to take place from March 18th to 21st at the San Jose Convention Center in California. While the agenda primarily focuses on artificial intelligence (AI), it will also indirectly provide insights into the new generation architecture aimed at data centers.
