Tuesday, September 1st 2020
NVIDIA GeForce RTX 3090 Ampere Bare PCB Pictured
Here are some of the clearest pictures of an NVIDIA GeForce RTX 3090 "Ampere" Founders Edition PCB, albeit bare (components not yet placed). The PCB goes in this form to another production line, where a PCB placer machine with reels of components places them along both sides. We can still make out quite a few things. To beign with, there are six high current traces near where the 12-pin Molex MicroFit power connector goes in.
NVIDIA seems to have utilized both sides of the PCB effectively. The card features traces for a mammoth 20-phase VRM. The obverse side has the chokes and DrMOS, the reverse side has the capacitors. Twelve memory pads for the 384-bit wide GDDR6X memory interface surround the GPU pad. There are pads for four display output connectors, which could be a mixture of DisplayPort, HDMI, or even USB-C VirtualLink. The PCB still has its spacers on, which will be cut out after component placement, after which the PCB heads for testing and product assembly. NVIDIA is expected to announce the GeForce RTX 3090 Ampere at an online event later today.
Sources:
ChipHell Forums, VideoCardz
NVIDIA seems to have utilized both sides of the PCB effectively. The card features traces for a mammoth 20-phase VRM. The obverse side has the chokes and DrMOS, the reverse side has the capacitors. Twelve memory pads for the 384-bit wide GDDR6X memory interface surround the GPU pad. There are pads for four display output connectors, which could be a mixture of DisplayPort, HDMI, or even USB-C VirtualLink. The PCB still has its spacers on, which will be cut out after component placement, after which the PCB heads for testing and product assembly. NVIDIA is expected to announce the GeForce RTX 3090 Ampere at an online event later today.
36 Comments on NVIDIA GeForce RTX 3090 Ampere Bare PCB Pictured
also the amount of phases the RTX 3090 would have was allready calculated by Igor from igorslab.de in June (!)
only things missing now are the exact structure of the cooler and perfomance numbers. Gimme!
I mean, GPU TDPs are goind up anyway, it would be better if the cooling design allowed for better cooling capacity in the future. CPU coolers have it way easier.
Anyways, I like the size of that PCB. Is it true, that all tiers will use the same PCB like with the 16xx cards? I will probably get a 3070 or maybe the AMD equivalent after RDNA2 is released. With watercooling attached, something this small could be a great little addition to my ITX system.
Until I see the whole card I'll wait with my opinions about how small the card is. :)
Next thing we need to know this is : How many layers and thickness of the PCB.
A large number of VRM's this translates that the GPU has the ability to turn off engines that the software can not use them.
Its like an active power saving mechanism.
However, none of them are double stacked, if you compare with this. It also makes it clear that the 3090 doesn't have a USB-C port for VirtualLink.
@btarunr the PCB has space for 24 memory ICs, not 12, as there are 12 pads on each side.
It's interesting to see a graphics card with more power phases than most high-end motherboards. That must be one power hungry chip.Sadly it's a bit too blurry to see, but it seems to be a 12 layer PCB if you look at the rear picture of the PCB and up top there's a yellow-ish square where I'm guessing the PCB layer number is present and it looks like a 12 to me.
No.
If they can cram the GA102 on ~205mm, a sub 170mm card should be trivial for GA104...
Which is weird because there's not much known about RDNA2, and I'm guessing that card is launching very soon as well.
Short PCB means HBM, that card is going to be expensive!