The NVIDIA GeForce RTX 4090 is definitely not the most power efficient graphics card on the market. As we know, the default TGP of this chip is 450 watts, but non-reference models designed for excessive overclocking can significantly exceed the proposed range of power consumption. A good example of this is the GeForce RTX 4090 iGame Neptune OC color model, which was just tested by Expreview.
The color RTX 4090 iGame Neptune card with TGP 630 W scored just 0.7% higher in 3DMark Time Spy Extreme than at factory settings. It’s hard to find a better example of overriding form over content…
NVIDIA will focus on producing the Hopper H100 chip. This is bad news for fans looking for a GeForce RTX 4090
as shown reconsideringThe colorful iGame Neptune is probably the most power-hungry GeForce RTX 4090 card. This system features a TGP level of 550 watts, but for OC mode it is possible to operate the TGP at a level of 630 watts. And it should come as no surprise that the manufacturer recommends a 1000W power supply for this card with high hours and under load, it can operate at speeds up to 2640MHz. Interestingly, despite the cosmic specs, the peak power consumption shown by the NVIDIA PCAT tool is “only” 470 watts (at default settings), even though the card uses up to 47 watts when idle. The reason may be the complex cooling system is here.
GIGABYTE GeForce RTX 4090 graphics cards are built with NVLink
However, it’s worth noting that unlocking an extra 80W (TGP) didn’t improve performance significantly, as the card only got a 0.7% higher score in 3DMark Time Spy Extreme compared to the default settings. Moreover, the test TechPowerUp Show us, a card with such extreme specs might require a special 12Vpm adapter designed to handle 600W TGP cards (with four 8-pin connectors). However, as long as you don’t intend to get the last juices out of the system, it won’t matter much.
Source: VideoCardz, Expreview, TechPowerUp
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