Samsung introduced its new GDDR7 memory with a density of 24 Gb (gigabits), which corresponds to the total 3 GB (gigabytes) per chip. This memory complements two chips previously developed by the South Korean company, which have a density of 8 Gb (1 GB) and 16 Gb (2 GB).
This new chip represents a very important improvement, as it will make it possible to create graphics cards with more memory using the classic buses that we all know. This is very important and lends more credence to rumors that NVIDIA could launch a GeForce RTX 5070 or RTX 5070 SUPER with 18 GB of graphics memory.
We could get a graphics card with six GDDR7 memory chips in the 3GB density version 18 GB of GDDR7 memory and a 192-bit bus. With 8 chips of this type, we could shape a graphics card with a 256-bit bus and 24 GB of GDDR7 memory. This configuration matches what a GeForce RTX 5080 could have.
Samsung’s new GDDR7 memory can reach 40 Gbps

And that’s almost like doubling the maximum bandwidth of GDDR6X memory, which peaked at 23 Gbps. Samsung noted that with some improvements it could reach even 42.5 Gbps, although it is important to clarify that the first implementations of GDDR7 memories in graphics cards will not work at such high speeds.
Nothing is confirmed yet, but it is rumored to use a GeForce RTX 5090 GDDR7 memory with a speed of 32 Gbpsand that the rest of the models could have chips with the same memory running at 28 Gbps. With the GeForce RTX 60, we may get closer to 40 Gbps, but those will arrive in two years.
Samsung’s 40 Gbps GDDR7 memory allows you to achieve amazing levels of bandwidth. Consider that a graphics card with 16 chips of 3 GB at 40 Gb/s and a 512-bit bus would offer maximum bandwidth 2560 GB/s. In comparison, the GeForce RTX 4090 with 24 GB GDDR6X at 21 Gb/s and a 384-bit bus has bandwidth 1008 GB/s.
Both NVIDIA and AMD could make graphics cards with these new 3GB chips 12 GB memory and 128-bit busand models with a 64-bit bus and 6 GB of graphics memory. We might eventually see a GeForce RTX 5060 Ti with 12 GB of graphics memory, which would certainly be good news.