RTX 5080 and RTX 5070 laptop VRAM capacity and bus width leak with significant gains over predecessors

We reported last week that the NVIDIA could be delaying the laptop RTX 50 “Blackwell GPUs for laptops. Additionally, Moore’s Law Is Dead also revealed that both the RTX 5090 and the RTX 5080 could use GDDR7 memory and a GB203 chip, marking a departure from the RTX 4090 and the RTX 4080 laptop cards both of which use different chips.

Adding to his previous assertions, the leaker claims that not only will the RTX 5080 laptop enjoy the same GB203 GPU as the RTX 5090, but the board will also carry the same 16 GB of VRAM over a 256-bit bus. If true, this will result in a significant capacity and bandwidth increase for the RTX 5080 laptop vs the RTX 4080 laptop which carries 12 GB of VRAM and a 192-bit wide bus.

Fortunately, the VRAM increase isn’t limited to the RTX 5080 alone, as the RTX 5070 (or the RTX 5070 Ti) is also slated to get a 4 GB bump vs the RTX 4070 (Buy the desktop version on Amazon). Alongside a total of 12 GB of RAM, the RTX 5070 could also feature a 192-bit wide bus.

Sadly, even though video game VRAM requirement is higher than ever with 8 GB often proving to be a bottleneck, MLID alleges that the RTX 5060 will retain the 8 GB capacity and the 128-bit bus of the RTX 4060 laptop.

All things considered, the RTX 50 laptop GPUs, at least the high-end ones, should be quite compelling if the leak ends up being true. All we can hope for now is that NVIDIA doesn’t price the cards higher than their predecessors, as the RTX 40 laptops, especially the RTX 4090 and the RTX 4080 ones, already command a pretty penny.