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NVIDIA GeForce RTX 3090 could be the new Titan with 384-bit 24 GB GDDR6X VRAM and 350 W TGP; GA102 Founders Editions cards with an expensive cooling system to be based on the PG133 board

Alleged NVIDIA RTX 3080 Founders Edition card. (Image Source: ChipHell via Videocardz)
Alleged NVIDIA RTX 3080 Founders Edition card. (Image Source: ChipHell via Videocardz)
An image of what appears to be the purported RTX 3080's heatsink has leaked online indicating that NVIDIA will be introducing a new dual-fan mechanism with a huge cooling block and at least four heat pipes with the upcoming Ampere GPUs. The top-end GA102 GPU will use the PG133 board for the Founders Edition of the RTX 3090, RTX 3080 Ti, and RTX 3080, which will use the new cooling system while AiBs are supplied with the PG132 board that allows for custom cooling designs.

We've reported about alleged pictures of the upcoming NVIDIA RTX 3080 cards that showed a unique cooling design with fans placed on opposite sides of the card. Those pictures showed an irregular PCB with the fan now being placed closer to the actual GPU. While it was initially not clear if the pictures were real or fake, NVIDIA has apparently launched an internal investigation with a focus on contract manufacturers Foxconn and Build Your Dreams (BYD) who were tasked with making the Founders Edition card. This means that those pictures could indeed be real. 

While it is possible that NVIDIA may make some changes before the official unveil later this year, Igor's Lab has learned that all three GeForce Ampere Founders Edition cards that will launch will be based on the PG133 circuit board with the main differentiators being VRAM and board power. While the Founders Edition cards will have an additional cutout for the new cooling setup, a PG132 board without the cutout is being offered to add-in board (AiB) partners for possibly custom cooling solutions. Igor's Lab cites sources that claim that the Founders Edition's construction and the cooler put together alone costs US$150.

A newly leaked heatsink design of the RTX 3080 (see image below) without the shroud indicates that this could actually be a clever design. Since there are now two fans, one each at the front and back of the card, the fins in the middle could actually help the fans push air more efficiently over the heatsinks. It remains to be seen how well this design actually translates into real-world cooling efficiency. We also see that there are at least four heatpipes that arise from the huge cooling block.

(Source: Igor's Lab)
PartPCBGPUModelMemoryTGPConnectors
SKU 10PG132GA102RTX 3090 (Ti/Super/Titan)384-bit 24 GB GDDR6X350 W3x DP, HDMI, NVLink
SKU 20PG132GA102RTX 3080 (Ti/Super)352-bit 11 GB GDDR6X

320 W

3x DP, HDMi
SKU 30PG132GA102RTX 3080320-bit 10 GB GDDR6X320 W3x DP, HDMi

According to Igor's Lab, we may see an RTX 3090 with a 350 W TBP as the flagship card. The RTX 3090 could, in fact, be a rebranded Titan. Or, NVIDIA may introduce it under the Titan moniker itself with a new marketing name. That part is still unconfirmed for now. Igor's Lab also says that we may see both an RTX 3080 with 10 GB of 320-bit GDDR6X and an RTX 3080 Ti with 11 GB of 352-bit GDDR66X RAM.

Both these cards seem are so near in specs, so it is very well possible that NVIDIA would introduce some differentiation between them if at all both these cards see the light of the day at once. Also, we haven't heard about other implementations of GDDR6X yet so the memory type still should be taken with a pinch of salt. 

Considering his source's information that GA102 on the PG132 reference board will have a total graphics power (TGP) of 350 W, Igor's Lab managed to deduce that the GPU power alone would be approximately 230 W taking into account power consumed by the 24 GB GDDR6X VRAM, MOSFETs for GPU voltage, framebuffer voltage, AUX, fans, and PCB loss. 

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RTX 3080 heatsink design without the shroud. (Image Source: u/LeeJiangLee on Reddit via Videocardz)
RTX 3080 heatsink design without the shroud. (Image Source: u/LeeJiangLee on Reddit via Videocardz)

Source(s)

Igor's Lab (1) and (2) (German)

u/LeeJiangLee on Reddit via Videocardz

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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 06 > NVIDIA GeForce RTX 3090 could be the new Titan with 384-bit 24 GB GDDR6X VRAM and 350 W TGP; GA102 Founders Editions cards with an expensive cooling system to be based on the PG133 board
Vaidyanathan Subramaniam, 2020-06-12 (Update: 2020-06-12)
Vaidyanathan Subramaniam
I am a cell and molecular biologist and computers have been an integral part of my life ever since I laid my hands on my first PC which was based on an Intel Celeron 266 MHz processor, 16 MB RAM and a modest 2 GB hard disk. Since then, I’ve seen my passion for technology evolve with the times. From traditional floppy based storage and running DOS commands for every other task, to the connected cloud and shared social experiences we take for granted today, I consider myself fortunate to have witnessed a sea change in the technology landscape. I honestly feel that the best is yet to come, when things like AI and cloud computing mature further. When I am not out finding the next big cure for cancer, I read and write about a lot of technology related stuff or go about ripping and re-assembling PCs and laptops.