Gigabyte RTX 3090 and RTX 3080 Gaming Strip Down

PCB Comparison and Video

Gigabyte RTX 3090 and RTX 3080 Gaming Naked

PCB Comparison

Now for the meat of the differences. Whilst the SLI fingers will give it away for those of you who've read everything up to now, the more obvious difference is thanks to the 14GB GDDR6X difference between the 10GB RTX 3080 and 24GB RTX 3090. The 3080 has one memory module above the GPU whilst the 3090 has 3 above it.

Gigabyte RTX 3080 Gaming OC

Gigabyte RTX 3090 and RTX 3080 Gaming Naked  

Gigabyte RTX 3090 Gaming


Gigabyte RTX 3090 and RTX 3080 Gaming Naked  

Another detail becomes clearer when you place the two naked PCBs side by side. At the top right, behind the power inputs there are three headers on the RTX 3090 - top - but only one on the RTX 3080. However, both these cards only have one actually connected here from the Windforce 3X, so perhaps the RTX 3090 Gaming PCB will be repurposed for an all-singing and dancing Aorus model down the road. Or maybe on that exists already but we haven't been sent yet.


Gigabyte RTX 3090 and RTX 3080 Gaming Naked  

Around the back it is much clearer which card is which. Not only are the SLI fingers more visible, but whereas the front of the RTX 3080 had 10 memory chips compared to the 3090's twelve, here it's 12 plays zero in favour of the RTX 3090. Additionally the extra power phases on the RTX 3090 have necessitated some jiggery pokery to the left of those GDDR6X chips (to the right of the GPU in the above image, but obviously things are flipped as we're on the reverse), and also there is more solder at the very top right as we look at it, again to do with the capacitors on the flagship card.


Gigabyte RTX 3090 and RTX 3080 Gaming Naked  

Here it is in close up on the front, with the RTX 3080 being on the ... altogether now.. left. That's right. Because of the SLI fingers. Well done. There is more power on the RTX 3090 too, and that shows up in the amount of capacitors.


Gigabyte RTX 3090 and RTX 3080 Gaming Naked

You can see the extra headers at the bottom right of the card here too, left blank on the RTX 3080 with only the middle one used. The biggest difference between the Gigabyte PCBs and the reference design is that Gigabyte use the lower profile capacitors, which mean that those of you seeking a third party water cooling solution will need to be aware that you'll not be able to use a reference based block.


Gigabyte RTX 3090 and RTX 3080 Gaming Naked  


Gigabyte RTX 3090 and RTX 3080 Gaming Naked  


Lastly we'll leave you with the kind of image that makes for a perfect wallpaper. Now we've got to put these back together again. Whilst we do that let us know your thoughts in the OC3D Forums.



 

«Prev 1 2 3 4 Next»

Most Recent Comments

x

Register for the OC3D Newsletter

Subscribing to the OC3D newsletter will keep you up-to-date on the latest technology reviews, competitions and goings-on at Overclock3D. We won't share your email address with ANYONE, and we will only email you with updates on site news, reviews, and competitions and you can unsubscribe easily at any time.

Simply enter your name and email address into the box below and be sure to click on the links in the confirmation emails that will arrive in your e-mail shortly after to complete the registration.

If you run into any problems, just drop us a message on the forums.