ZOTAC launches GeForce RTX 3090 ArcticStorm with 16+4 phase power design | KitGuru
 
The Zotac RTX 3090 ArcticStorm’s cooling system consists of a nickel-plated copper cold plate in direct contact with the GPU, and an anodised aluminium water block covering the whole graphics card. Moreover, the card also comes with a metal backplate designed to match the card’s theme, improving its looks while also helping to cool the card passively.
Featuring a slim 25.9mm profile and a 2-slot design, this graphics card can be easily mounted even in compact ITX systems. The G 1/4″ inlet and outlet ports are standardized for improved compatibility. There are also sealing barbs supporting 10mm inner diameter tubing to prevent leakage.
 
The 16+4 power phase design allows users to push the card to new heights of performance. The card comes with a Powerboost control chip that increases the GPU stability by automatically adjusting the electrical current and correcting electrical deviations, resulting in less ripple and power variations. Compatible with the Spectra 2.0 RGB system, the RTX 3090 ArcticStorm comes with multiple ARGB LEDs with various lighting modes. Users can control brightness and switch between lighting modes on individual zones using FireStorm. There is also a 3-pin RGB header that can be connected to a motherboard or RGB hub for synchronisation with other components. 
 
The 16 +4 power design is definitely good, but good luck finding one for sale. 
 

ty_ger07
Nickel plated copper and aluminum mish-mash? That doesn't sound like a well engineered combination of metals from a corrosion standpoint.

this is what I am wondering, I believe the 1080 Ti model had a copper cold plate but the entire rest was aluminum.

I would think the aluminum isn't in contact with the water, in which case it should be fine. But one never knows for sure and I wouldn't just assume it.
 

lejeunedillon92
Is there any benefit to buying one of these rather than purchasing an existing card and adding a cold plate from another company?

Because you don't have to worry about buying pads, mis-matched blocks, installation errors, having TIM, and generally ensuring that all the right parts have pads to make contact with the block. Just because a vender claims their waterblock is fully compatible doesn't mean the vender's block will cool all the same components that a waterblock would installed from the OEM factory.
 
OEMs like EVGA are the ones dealing with warranties so they have a vested interest in optimizing the waterblock design to the card and not skipping component coverage. Standalone blocks have to focus on compatibility first, so they may not cover everything on every card design. I've seen this multiple times between EVGA Hydrocopper cards versus other blocks companies made that fit EVGA's cards, and is why to date I have always purchased Hydrocopper cards.