RTX 4090D officially released today with specs (China only), RTX 4080ti discussion

Agall · December 28, 2023

Summary

RTX 4090D released today, binning puts it below RTX 3080 10GB in terms of silicon quality. What I find interesting is how chopped the AD102 GPU is but still maintains its 384 bit bus and 24GB of VRAM. 14952 Cuda cores is a significant reduction compared to the 16384 of the normal RTX 4090.

My thoughts

Updated RTX 3000 vs 4000 binning scheme chart:

What I'll be curious to see is if we get an RTX 4080ti, if it'll be a 320bit 20GB card. It's quite possible that it'll fall below the 14592 CUDA core count in the 13,000-14,000 core region, potentially at the bottom of what the AD102 GPU can reach.

The rest of the story on the 4090D isn't what I'm interested in, but potentially how this affects the RTX 4080ti (if we ever see one), since there's a huge cap in AD102 GPUs between the RTX 5000 Ada's 12800 (256 bit bus) and the now second lowest bin, the 4090D, at 14952 (384 bit bus).

NVIDIA GeForce RTX 4080 Ti Specs | TechPowerUp GPU Database

This is speculative, since TechPowerUp's projected die configuration has been wrong before (looking at you RTX 4060, shown above lined out).

I'm still hopeful we get an RTX 4080ti with a 20GB or higher memory buffer. Since Nvidia hasn't put out an equivalent die on the workstation side, and I doubt their binning scheme magically doesn't have a million or so dies in the 13,000-14,000 core count region, they're probably waiting for competition in the space.

NVIDIA AD102 GPU Specs | TechPowerUp GPU Database

Sources

NVIDIA GeForce RTX 4090 D GPU Launched In China: Reduced Cores, Similar Gaming Performance For $1599 US (wccftech.com)

NVIDIA launches GeForce RTX 4090D with 14592 CUDA cores, 24GB G6X memory and 425W TDP - VideoCardz.com