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Although the RTX 50 series is debuting with newer, faster GDDR7 memory, almost every source indicates that Nvidia will stick with the standard 16GB (or 2GB) modules for these GPUs. However, according to a rumor from the famous leaker Golden Pig Upgrade PackNvidia may equip the RTX 5090 mobile with 24GB (or 3GB) memory modules, resulting in a total of 24GB of video memory.
Nvidia’s RTX 50 series of GPUs codenamed “Blackwell” will be the first consumer offerings to launch with GDDR7 memory. This new type of memory offers several advantages over GDDR6 and GDDR6X, including faster speeds and improved densities. Samsung is evolving 42.5 Gbps GDDR7 Units are available in 24GB (3GB) flavors, and are expected to reach mass production soon. Word on the street Is that RTX 50 GPUs for mobile and desktop could be announced in parallel next week.
RTX 50 product range with RTX 5090, RTX 5080and RTX 5070 It is expected to debut with less dense 16GB (2GB) GDDR7 memory modules. If this rumor is true — something we’ll likely find out next week — it begs the question: Why is Nvidia using denser 24GB modules exclusively for the mobile RTX 5090? Ransomware attack on Clevo Several months ago a mobile successor to the RTX 4090 with 16GB of memory was proposed. Although this report is from June, we suggest you take this leak with a grain of salt.
There is a strong possibility that denser GDDR7 modules will be in limited supply, something that is expected to improve as the technology matures. in GTC 2024Samsung and SK Hynix have announced that the initial wave of GDDR7 memory will revolve around 16GB capacities with plans to introduce 24GB variants later.
Reiterating its predecessor, the mobile RTX 5090 will likely be powered by the GB203 GPU die that is also rumored to be used for the desktop RTX 5080. The leaker reported that Nvidia is using higher capacity modules to overcome the limitations of the 256-bit bus. This suggests that GB203 It is actually limited to a 256-bit interface; Enable eight modules of either 16GB (16GB/2GB modules) or 24GB of memory (24GB/3GB modules).
A growing concern among both desktop and laptop GPUs is limited memory capacity. The VRAM capacities in the AD103 and GA103 GPUs were limited by the 256-bit interface. Thus, even professional workstation GPUs, such as the RTX A5500 Mobile (GA103) and RTX 5000 Mobile Ada (AD103), only offer 16GB of memory.
With rumors of a 24GB RTX 5090 mobile launch, expect much of the same for its workstation counterpart. Furthermore, if Nvidia wanted to, budget Blackwell GPUs like the RTX 5060 could easily come with 12GB of VRAM, even via a narrow 128-bit memory interface. Just food for thought but in theory, getting a 48GB RTX 5090 is entirely possible; This doesn’t mean Nvidia will release this GPU because it will likely eat into its data center revenue.
