➀ The GeForce RTX 5090 for laptops is rumored to feature 3GB GDDR7 memory modules, which could offer performance gains over the GDDR6 memory used in the mobile GeForce RTX 4090. ➁ The use of 3GB memory chips could potentially lead to 24GB of VRAM on the same 256-bit memory bus, compared to 16GB of GDDR6 memory on the 4090. ➂ The mobile version of the GeForce RTX 5090 is rumored to debut with 16GB of GDDR7 and a 175W TDP.