NVIDIA

Gainward Phoenix GeForce RTX 3090

Expert rating9 / 10

GPU Brand:: NVIDIA
Series:: GeForce RTX 30
Tier:: Flagship
Board Partner:: Gainward
VRAM:: 24GB
Memory Type:: GDDR6X
Boost Clock:: 1740MHz
Ray Tracing Support:: Yes
TDP:: 350W
Card Length:: 320mm
Slot Width:: 3-slot

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Manufacturer: NVIDIA Last updated: 2026-09-12

Gainward Phoenix GeForce RTX 3090 Review

Gainward Phoenix GeForce RTX 3090 is a flagship NVIDIA graphics card built on the Ampere (GA102) architecture, with 24GB of GDDR6X memory, a 1740MHz boost clock, and a 350W TDP. It is Ampere's original Titan-class flagship, aimed at 4K gaming and content creation workloads.

If you're shopping for a flagship card, the Gainward Phoenix GeForce RTX 3090 lines up against AMD's Radeon RX 6900 XT in this catalog. Expect a card around 320mm long needing a 3-slot opening in your case, with cuda cores count of 10496 feeding its rendering pipeline. Launch MSRP was $1,499, though street pricing has moved since.

Performance and Architecture

Built on NVIDIA's Ampere (GA102) architecture, the Gainward Phoenix GeForce RTX 3090 pairs 10496 cuda cores with 24GB of GDDR6X memory on what NVIDIA rates as a 1740MHz boost clock. That combination places it in the flagship tier, where it's tuned for a specific resolution and refresh-rate target rather than being a universal do-everything card.

Power, Size, and Compatibility

At a 350W TDP, the Gainward Phoenix GeForce RTX 3090 needs a power supply with enough headroom on the 12V rail plus whatever PCIe power connectors this variant uses. Physically it runs about 320mm long and occupies a 3-slot opening, so measure your case's GPU clearance and front intake fans before buying, especially in compact builds.

Comparison to Alternatives

The closest rival to the Gainward Phoenix GeForce RTX 3090 in this catalog is AMD's Radeon RX 6900 XT, which competes at a similar price and resolution target. Shoppers who need more VRAM headroom or lower power draw than the Gainward Phoenix GeForce RTX 3090 offers should cross-shop that card before deciding, since the two trade blows depending on the game engine and whether ray tracing or upscaling is in use.

Specifications

Platform

GPU Brand	NVIDIA
Board Partner	Gainward

Identity and type

Series	GeForce RTX 30
Tier	Flagship

Performance

VRAM	24 GB
Memory Type	GDDR6X
Boost Clock	1740 MHz
Ray Tracing Support	Yes

Physical & Power

TDP	350 W
Card Length	320 mm
Slot Width	3

Silicon

Architecture	Ampere (GA102)
Shader Units	10496

Market and workstation

MSRP	1499 USD

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating9 / 10

A solid flagship pick if its price and 24GB VRAM allocation match your target resolution.

Best for

Gamers targeting the resolution this flagship tier is built for
Builders who want 24GB of VRAM without moving up a tier
Anyone upgrading from an older NVIDIA or rival card at a similar price point

Not for

Buyers who need the absolute best price-to-performance and should compare street prices first
4K/high-refresh gamers if this card's tier sits below High-End
SFF builders who haven't confirmed this card's length and slot width fit their case

FAQs

What are the key specifications of the Gainward Phoenix GeForce RTX 3090?

The Gainward Phoenix GeForce RTX 3090 is a graphics card from NVIDIA. Key specs: GPU Brand NVIDIA, Tier Flagship, Board Partner Gainward, VRAM (GB) 24GB GDDR6X, Memory Type GDDR6X.

Who is the Gainward Phoenix GeForce RTX 3090 best suited to?

It suits gamers targeting the resolution this flagship tier is built for, builders who want 24gb of vram without moving up a tier, anyone upgrading from an older nvidia or rival card at a similar price point.

What are the drawbacks of the Gainward Phoenix GeForce RTX 3090?

It is a poor fit for buyers who need the absolute best price-to-performance and should compare street prices first, 4k/high-refresh gamers if this card's tier sits below high-end, sff builders who haven't confirmed this card's length and slot width fit their case.