When PowerColor launched its Liquid Satan Radeon RX 7900 XTX with a factory-installed waterblock, it mentioned the graphics card ensures “final” overclockability, however didn’t elaborate. This week famend overclocker Roman “der8auer” Hartung lastly took this card for a take a look at drive. It seems it could overclock very properly: the GPU could be pushed to three.25 GHz – 3.39 GHz, based on his YouTube video (through VideoCardz). The board pulled 650W of energy on this case.
With an as much as 2,680 GHz increase clock with Unleashed BIOS mode activated, PowerColor’s Liquid Satan Radeon RX 7900 XTX comes with noticeably increased GPU frequency in comparison with AMD’s reference design proper out of the field, which makes it one of many greatest graphics playing cards.
On this mode, the graphics board pulls round 420W of energy, and the graphics processor could be pushed to 2.95 GHz – 3.0 GHz. Whereas 3.0 GHz is a powerful clock for a GPU, it’s nonetheless potential to go increased by rising the voltage of the chip.
As a result of it’s not possible to extend the voltage of AMD’s RDNA 3-based GPUs and optimize their voltage curves utilizing software program like Extra Energy Device, Roman “der8auer” Hartung had to make use of the ElmorLabs EVC2SE gadget that allows guide voltage management.
The default voltage of AMD’s Navi 31 GPU on the Liquid Satan Radeon RX 7900 XTX graphics card is 1.030V. As soon as GPU voltage is elevated to 1.050V, it could push itself to three.05 GHz, however its energy consumption will improve to 500W.
By rising voltages even increased (say, to 1.142V), der8auer has pushed the GPU to three.25 GHz within the 3DMark TimeSpy Excessive take a look at and to three.39 GHz in mild 3D rendering workloads. With a massively elevated GPU voltage and at slightly excessive frequencies, energy consumption of the board from slots elevated to 650W, which implies that it sucked round 700W from the slot and from auxiliary PCIe energy connectors.
Whereas such a colossal overclock caused 28% of additional efficiency in comparison with AMD’s reference Radeon RX 7900 XTX, it did so at an 83% increased energy, which clearly signifies that the GPU was not designed to deal with such frequencies. But, from a pure overclocking end result viewpoint, 3.25 GHz – 3.38 GHz is a powerful achievement since AMD’s increase clock for its Navi 31 GPU is 2.50 GHz.