NVIDIA GeForce RTX 50 “Blackwell” GB200 Gaming GPUs To Retain Same Memory Interface As Ada, 384-bit At Max
NVIDIA's GeForce RTX 50 "Blackwell" Gaming GPUs under the GB200 series are likely to retain the same memory bus configurations as Ada.
NVIDIA RTX 50 "Blackwell" & RTX 40 "Ada" Gaming GPUs Rumored To Incorporate Similar Memory Bus Configurations, Flagship GB200 Series Chip To Get 384-Bit Bus
The latest info on the next-generation NVIDIA GeForce RTX 50 "Blackwell" GPUs has been dropped by Kopite7kimi and it looks like the GB200 series of GPUs for gaming graphics cards will be getting similar memory bus interfaces as the existing Ada lineup designed for the GeForce RTX 40 Gaming GPU lineup.
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The NVIDIA GeForce RTX 40 "Ada" GPU lineup currently consists of five SKUs which include the following:
- AD102 (384-bit)
- AD103 (256-bit)
- AD104 (192-bit)
- AD106 (128-bit)
- AD107 (128-bit)
We have seen NVIDIA go as low as 96-bit for its entry-level AD107 GPU SKUs but that's just a few mobility configurations. The lineup peaks out with the GeForce RTX 4090 and the RTX 6000 Ada, both of which pack a 384-bit bus interface and up to 24/48 GB video memory capacities. Based on what we are seeing from the first generation of GDDR7 dies, it looks possible that NVIDIA is going to retain the same memory configurations for its next-gen GB200 "Blackwell" Gaming GPUs which are going to be featured on the GeForce RTX 50 family. We can expect something like the following:
- GB202 (384-bit)
- GB203 (256-bit)
- GB204 (192-bit)
- GB206 (128-bit)
- GB107 (128-bit)
If NVIDIA goes on to use the standard 16 Gb (2 GB) memory dies clocked at 32 Gbps pin speeds, the lineup should look like the following:
- GB202 - 384-bit / 32 Gbps / 24 GB (Max Memory) / 1536 GB/s (Max Bandwidth)
- GB203 - 256-bit / 32 Gbps / 16 GB (Max Memory) / 1024 GB/s (Max Bandwidth)
- GB204 - 192-bit / 32 Gbps / 12 GB (Max Memory) / 768.0 GB/s (Max Bandwidth)
- GB206 - 128-bit / 32 Gbps / 8 GB (Max Memory) / 512.0 GB/s (Max Bandwidth)
- GB207 -
