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

Nvidia on Wednesday printed the published circuit board (PCB) design of its GeForce RTX 4090 graphics card and disclosed one of the peculiarities of its new product. Because it seems, the corporate totally redesigned the cardboard’s voltage regulating module (VRM) by way of including a PID controller with a comments loop to verify correct energy provide to the GPU and maximize its overclocking possible.

When totally assembled, Nvidia’s (*12*)GeForce RTX 4090 Founders Version graphics card resembles its predecessor because it continues to make use of an intensive dual-fan cooling device that includes a unibody design. However the brand new product has a number of unique variations out of doors and, extra importantly, within.

Identical to earlier technology Founders Version graphics playing cards, the brand new GeForce RTX 4090 FE makes use of an excessively subtle but compact PCB with a triangular minimize on its again (or its proper facet, relying on the way you have a look at it) this is supposed to maximise the potency of Nvidia’s go with the flow thru thermal design (which is additional boosted by way of larger enthusiasts).


(*18*)(Symbol credit score: Nvidia)

The PCB has a unmarried 12+4-pin 12VHPWR further PCIe Gen5 energy connector that may ship as much as 600W of energy to the instrument, 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 stages for the GPU, 3 stages for reminiscence), which is a slight development from the 18+3-phase energy circuitry of the GeForce RTX 3090/3090 Ti FE.

Along with extra energy stages, Nvidia carried out a PID controller with a comments 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 control reaction time with out quantifying it in absolute figures. A strong and blank energy provide is an important for steadiness below prime lots and overclocked stipulations. The fairway corporate calls this selection ‘energy temporary control,’ which could be one of the tactics it manages to push its AD102 graphics processor to 3 GHz with out overvolting it and the usage of excessive cooling strategies.


(*18*)(Symbol credit score: Nvidia)

Along with improving the cooling device with larger enthusiasts that offer 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. Whilst we will be able to handiest speculate how the facility intake of DRAMs that includes PAM-4 signalings was once decreased, we recommend that Micron makes use of a thinner fabrication procedure to make those chips, which mechanically lowers their energy intake. In the meantime, with less warm reminiscence, the cooling device will higher quiet down the GPU, because of this additional overclocking headroom.

Nvidia’s GeForce RTX 4090 Founders Version graphics playing cards will move on October 12 and can most likely sign up for the best possible graphics playing cards, no less than for the ones keen to pay $1,599 in keeping with unit.


(*18*)(Symbol credit score: Nvidia)

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