Next-gen NVIDIA GPUs could use 4GB and 6GB GDDR7 chips
The next generation of NVIDIA GPUs could see a significant leap in video memory capacity. According to a leak from insider Golden Pig on the Chinese social media platform Weibo, memory manufacturers are expected to release GDDR7 chips with densities of 4GB and 6GB. This shift could allow for much higher VRAM capacities without requiring a complete redesign of existing PCB layouts.
Density Shift: Moving Beyond 2GB Modules
Currently, 2GB GDDR7 chips serve as the standard for the RTX 50 Series desktop lineup and parts of the mobile range. While 3GB chips already exist and are utilized in RTX Pro cards and high-end laptop configurations (such as RTX 5090 and RTX 5070) to maximize density in tight spaces, the move to 4GB and 6GB would represent a 100% and 200% increase in density over current 2GB modules, respectively.
For consumers, this could mean a massive jump in total VRAM. While a 32GB RTX 5080 remains a speculative concept, such high-capacity modules might be more realistically reserved for the RTX 60 Series, which is rumored to arrive around 2028. This would allow NVIDIA to market significant memory upgrades over the 50 Series while maintaining efficient PCB routing.
Bandwidth Potential and Market Challenges
Beyond capacity, the speed of these chips remains a key factor. Current GDDR7 chips on GeForce cards operate between 28Gb/s and 30Gb/s, contributing to bandwidths around 1.79TB/s. Even marginal speed improvements in these higher-density chips could result in massive performance gains on wide-bus architectures, such as 512-bit interfaces.
However, several hurdles remain before these chips reach gaming rigs:
- Memory Shortages: Ongoing supply issues could delay the rollout of these new high-density modules.
- Cost: The high price of memory makes it difficult to implement these chips in mainstream consumer products immediately.
If these rumors hold true, professional-grade hardware like the RTX Pro 6000 stands to benefit most, potentially reaching capacities as high as 192GB, which would be a significant boon for workstation-heavy workloads.
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