Which is better for 4K gaming?

Both use the RTX 5090 GPU with 32 GB of memory, so frame rates should be close. The GIGABYTE's liquid cooling may hold boost clocks longer in long sessions.

Do I need a special case for the GIGABYTE card?

Yes. It is liquid cooled, so you need room to mount a radiator plus tubing clearance. The ASUS air-cooled card only needs standard card clearance.

Is the GIGABYTE worth $7,079.99?

That is the only new price listed here, at Newegg as of November 7, 2026, and it sat as low as that same figure since November 4. Without a price for the ASUS, you cannot compare value directly.

Which one fits a white build?

The ASUS ROG Astral White OC, which is sold in a white and silver finish. The GIGABYTE's color is not stated.

How much power supply do I need?

The GIGABYTE lists a 1000 W TDP, so plan a PSU well above that with headroom. The ASUS power draw is not stated; check its spec sheet before buying.

Does either card support multiple GPUs?

No. The GIGABYTE lists no multi-card or SLI support, and the ASUS listing gives no SLI option either.

Gigabyte AORUS RTX 5090 XTREME WATERFORCE vs ASUS ROG Astral RTX 5090 White OC

Both cards are RTX 5090s with 32 GB of GDDR7, so raw gaming performance is close. The GIGABYTE XTREME WATERFORCE is a liquid-cooled card with a 2655 MHz boost clock, built for big cases and heavy sustained loads. The ASUS ROG Astral White OC is an air-cooled card in a white finish, and its listed specs are thin. At $7,079.99 at Newegg as of November 7, 2026, the GIGABYTE is the only one of the two with a stated new price here.

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