NVIDIA GeForce RTX 5080 Rumored to Feature a Faster 30 Gbps GDDR7 Memory

With a faster memory speed, the total memory bandwidth will improve noticeably, resulting in faster performance in certain scenarios but this is only to be found on the GeForce RTX 5080.

With a 30 Gbps memory speed, the RTX 5080 will deliver a 7% memory bandwidth increase

NVIDIA is apparently equipping its second fastest RTX 50 series GPUs with faster memory, even that of the RTX 5090, which is supposedly the flagship GPU in the Blackwell lineup. While not confirmed, Benchlife reports that its sources have confirmed that the GeForce RTX 5080 will feature 30 Gbps GDDR7 memory instead of 28 Gbps found on other RTX 50 cards.

If this is true then the total memory bandwidth of the RTX 5080 will increase by 64 Gbps, which is a 7% increase compared to if it would come with standard 28 Gbps memory speed. Surprisingly, this would be the only card in the lineup to feature such a high memory speed, resulting in a solid 960 GB/s of memory bandwidth, which could have been 896 GB/s.

Except for this card, the RTX 5090, 5070, and 5060 cards will run the 28 Gbps GDDR7 memory. The RTX 5080 will retain the 16GB VRAM capacity as found on the predecessor but due to the faster GDDR7 memory vs GDDR6X on the RTX 4080, it will deliver around 34% higher memory bandwidth. Compared to the RTX 4080 Super, the increase is about 30%.

As the architecture has been improved along with other specs, the RTX 5080 could be significantly faster than the RTX 4080 but this is still my assumption. There isn’t any drastic change in the Cuda Cores as the RTX 5080 is supposedly bringing 10752 cores compared to 9728 on the RTX 4080. This is a 10% core count increase and cannot make a big difference alone.

As we are coming close to the official launch at CES 2025, expect more such leaks to appear but only some of them are confirmed, including the memory configuration confirmation by ZOTAC recently.