Friday, August 14th 2020
NVIDIA GeForce RTX 3090 "Ampere" Alleged PCB Picture Surfaces
As we are getting close to September 1st, the day NVIDIA launches its upcoming GeForce RTX graphics cards based on Ampere architecture, we are getting even more leaks. Today, an alleged PCB of the NVIDIA's upcoming GeForce RTX 3090 has been pictured and posted on social media. The PCB appears to be a 3rd party design coming from one of NVIDIA's add-in board (AIB) partners - Colorful. The picture is blurred out on the most of the PCB and has Intel CPU covering the GPU die area to hide the information. There are 11 GDDR6X memory modules covering the surrounding of the GPU and being very near it. Another notable difference is the NVLink finger change, as there seems to be the new design present. Check out the screenshot of the Reddit thread and PCB pictures below:More pictures follow:
Source:
VideoCardz
72 Comments on NVIDIA GeForce RTX 3090 "Ampere" Alleged PCB Picture Surfaces
RTX 3080 / RTX 3090 PCB analysis
And how do you cool that memory with its ~40 Watts thermal output without making the card a 4 slot monster because of a giant backplate...
Might just mean it needs it's own source of power instead of sharing making the current more stable.
The first two have only 11 memory chips and the alleged Ampere NVLink fingers, the third has pads for 12 chips and the Turing NVLink fingers. Where?
For those of you saying that the CPU for some reason covering the area behind the die somehow confirms the RT coprocessor hypothesis: no. Not only would a chip there make providing stable power to a GPU die on this level near impossible due to forcing crucial power conditioning components further from the die, but the mounting of such a chip would make the PCB ridiculously expensive (dense and high bandwidth vias through the PCB, while not blocking or otherwise interfering with everything else going there?), and if such a coprocessor had any power draw at all it would be impossible to cool in a standard PCIe form factor - you'd need a full slot of heatsink at the back as well. 4-slot card that fouls your CPU cooler, anyone? Yeah, not happening. And besides, the added latency from moving RT processing off-die - even using exotic interconnects - would make it impossible to implement at anything resembling high frame rates and good frame times.
Im guessing the CPU is either there to hide identifying information as to the source (company), or to mess with people who believe in this rumor.