Nvidia Details GeForce RTX 4090 FE PCB: 23 Phases and Clean Power

Nvidia Particulars GeForce RTX 4090 FE PCB: 23 Phases and Clear Energy

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Nvidia on Wednesday revealed the printed circuit board (PCB) design of its GeForce RTX 4090 graphics card and disclosed among the peculiarities of its new product. Because it seems, the corporate fully redesigned the voltage regulating module (VRM) of the cardboard by including a PID controller with a suggestions loop in a bid to make sure correct energy provide to the GPU and maximize its overclocking potential.

When totally assembled, Nvidia’s GeForce RTX 4090 Founders Version graphics card resembles its predecessor because it continues to make use of an in depth dual-fan cooling system that includes a unibody design. However the brand new product has a number of distinctive variations outdoors and, extra importantly, inside.

Similar to earlier technology Founders Version graphics playing cards, the brand new GeForce RTX 4090 FE makes use of a really subtle but compact PCB with a triangular lower on its again (or its proper aspect, relying on the way you have a look at it) that’s meant to maximise the effectivity of Nvidia’s circulation by means of thermal design (which is additional boosted by extra big followers).

(Picture credit score: Nvidia)

The PCB has a single 12+4-pin 12VHPWR extra PCIe Gen5 energy connector that may ship as much as 600W of energy to the system, but default BIOS settings don’t permit Nvidia’s GeForce RTX 4090 FE to attract greater than 450W. The board additionally comes with a 20+3-phase VRM (20 phases for the GPU, 3 phases for reminiscence), which is a slight enchancment from the 18+3-phase energy circuitry of the GeForce RTX 3090/3090 Ti FE.

Along with extra energy phases, Nvidia applied a PID controller with a suggestions loop to cut back present spikes and drops, successfully stabilizing energy supply to its GeForce RTX 4090 Founders Version graphics card, studies TechPowerUp. Nvidia says that its new VRM permits a considerably decrease energy administration response time with out quantifying it in absolute figures. A steady and clear energy provide is essential for stability below excessive hundreds and overclocked situations. The inexperienced firm calls this characteristic ‘energy transient administration,’ which could be one of many methods it manages to push its AD102 graphics processor to three GHz with out overvolting it and utilizing excessive cooling strategies.


(Picture credit score: Nvidia)

Along with enhancing the cooling system with extra big followers that present as much as 20% extra airflow and redesigning energy supply, Nvidia additionally makes use of new GDDR6X reminiscence chips with its GeForce RTX 4090 FE that devour much less energy. Whereas we are able to solely speculate how the facility consumption of DRAMs that includes PAM-4 signalings was lowered, we recommend that Micron makes use of a thinner fabrication course of to make these chips, which mechanically lowers their energy consumption. In the meantime, with colder reminiscence, the cooling system will higher calm down the GPU, which implies further overclocking headroom.

Nvidia’s GeForce RTX 4090 Founders Version graphics playing cards will go on October 12 and can probably be part of the greatest graphics playing cards, no less than for these keen to pay $1599 per unit.

(Picture credit score: Nvidia)

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