Gainward GeForce RTX 4090 Phantom GS review

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Any GeForce RTX 4090 has been fitted with 24 Gigabytes of GDDR6X memory; it runs at 21 Gbps (effective datarate), and that's a lot of memory bandwidth for a gaming graphics card alright. We'll show you the specification details on the following pages. The IO panel shows three DisplayPort 1.4 and one HDMI 2.1 connector that will bring 8K 60 Hz HDR to a single HDMI cable. The card has three fans. The dual BIOS is configured to be Performance out of the box; for comfort,  the silent BIOS mode can be enabled for a more silent running product. As explained on the previous page, the difference isn't performance, it's a different fan profile that offers your preference on temperature or silent acoustics. 



With dimensions of 348.2 x 160 x 72.6 mm this handcrafted behemoth dwarfs the Founders Edition and immediately seems substantial. You need to check first if it'll fit your PC Case. The Phantom GS (Golden Sample) weighs in at just under 2 kilograms, but with a length of 33 cm and a height of 13 cm from the slot to the upper edge and a thickness of exactly 6.5 cm plus 0.5 mm for the backplate, it’s a nig device.


The flagship is released with a triple fan configuration, occupying 3.5 slots. The GPU on the RTX 4090 has 16+ Cuda cores, and faster GDDR6X memory clocking in at 21 Gbps, from Micron. The GPU boost frequency has been increased to at least 2615 MHz in gaming, but you'll likely see it hovering in a ~2800 MHz domain. We measure the TDP of this RTX 4090 to be ~ 450 watts while remaining within the parameters of the 12VHWPR.


Temperatures are unlikely to be an issue, and thanks to the backplate and metal anti-bending plate, there's a minimal hint of sag despite the card weighing little under 2kg. The outer shell is made outr of plastic mostly, but still it looks good in that dark theme.


The three-slot design expands to a 3.5-slot design, with 100 grams greater weight compared to reference and boasts a substantially bigger I/O shield with three DisplayPort 1.4 and one HDMI 2.1 port.

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