Geforce RTX 5090: 28GB GDDR7, Fewer CUDA Cores Than Rumored

This year, NVIDIA is set to release a new generation of gaming graphics cards, the Geforce RTX 50 series based on the Blackwell architecture, anticipated to arrive as early as the fourth quarter. Similar to the previous Geforce RTX 30/40 series, the initial focus will be on high-end products. Recently, there has been an increasing amount of information regarding the RTX 5090, with details becoming more specific.

According to a forum user on Chiphell, the Geforce RTX 5090 will feature 28GB of GDDR7 memory with a 448-bit memory bus. This suggests that the GB202 chip in the Geforce RTX 5090 is not the full version, as the top configuration typically includes 32GB of memory with a 512-bit bus. Previous reports indicated that the GB202 has 192 SM units (24,576 CUDA cores), but the Geforce RTX 5090 is expected to use only 170 to 180 of these units.

Benchlife reports that only the 600W Geforce RTX 50 series cards will have the full configuration, with the RTX 5090 expected to have a TGP of 450W. Additionally, NVIDIA is preparing a 350W version with 16GB of memory and a 256-bit bus. It is understood that NVIDIA’s partners are already working on cooling designs for the new Geforce cards based on the Blackwell architecture.

Earlier reports suggested that the Geforce RTX 5090 Founders Edition will be only dual-slot thick and equipped with dual fans, though whether the TGP will reach 600W remains to be seen. It is rumored to have a three-PCB design with space for dual-sided cooling.

Many are hoping that NVIDIA will reveal information about the Geforce RTX 50 series at the upcoming COMPUTEX 2024, but the likelihood of this happening is low.