NVIDIA has just named its next-generation GPU that arrives after Blackwell and Rubin, called Feynman, and it will use a new HBM memory.
NVIDIA Feynman Is The Name of Green Team's 2028's GPU, Will Use Next-Gen HBM Memory Too
At GTC 2025, NVIDIA unveiled its latest product roadmap which extends beyond the Rubin & Rubin Ultra GPUs. This new roadmap confirmed the company's next-gen GPU, which will be codenamed, Feynman, after renowned American theoretical physicist, Richard Phillips Feynman, who is known for his work on quantum mechanics.
Richard Phillips Feynman (/ˈfaɪnmən/; May 11, 1918 – February 15, 1988) was an American theoretical physicist. He is best known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, and in particle physics, for which he proposed the parton model.
via Wikipedia

Although the company isn't announcing any in-depth details on the Feynman GPU yet, they did state that the GPU will be making use of next-gen HBM memory, so maybe HBM4e or HBM5?
In addition to that, NVIDIA's Feynman GPUs will also be equipped alongside the same Vera CPUs that will be utilized by the Rubin and Rubin Ultra platforms. More details on these are here too. Other upgrades will come in the form of the 8th Gen NVSwitch NVL-Next, Spectrum7 (204T, CPO) & CX10. These upgrades will be arriving sometime in 2028 and, given NVIDIA's timeline, we can expect a 2H launch. Also, there's no word on a Feynman Ultra for now, but we do expect to see an upgraded chip in the future, close to 2030.
NVIDIA Data Center / AI GPU Roadmap
GPU Codename | Feynman | Rubin (Ultra) | Rubin | Blackwell (Ultra) | Blackwell | Hopper | Ampere | Volta | Pascal |
---|---|---|---|---|---|---|---|---|---|
GPU Family | GF200? | GR300? | GR200? | GB300 | GB200/GB100 | GH200/GH100 | GA100 | GV100 | GP100 |
GPU SKU | F200? | R300? | R200? | B300 | B100/B200 | H100/H200 | A100 | V100 | P100 |
Memory | HBM4e/HBM5? | HBM4 | HBM4 | HBM3e | HBM3e | HBM2e/HBM3/HBM3e | HBM2e | HBM2 | HBM2 |
Launch | 2028 | 2027 | 2026 | 2025 | 2024 | 2022-2024 | 2020-2022 | 2018 | 2016 |