AMD Radeon RX 7900 XTX GPU Overclocked To 3.4 GHz On Liquid-Cooling, Hits 650W Power Draw
AMD Radeon RX 7900 XTX GPU Overclocked To 3.4 GHz On Liquid-Cooling, Hits 650W Power Draw
AMD's flagship Radeon RX 7900 XTX GPU has been overclocked to an impressive 3.4 GHz clock speed on standard liquid-cooling by Der8auer.
The AMD AIB of choice used by Der8auer was the PowerColor Liquid Devil which is one of the most premium variants one can come across. It even costs more than the MSRP of the NVIDIA RTX 4090 & retails at $1819 US (at Newegg). The liquid devil is already a high-end variant out of the box that comes with a fully custom PCB design and an EK water block which offers full coverage to the GPU, VRAM, and the 17-Phase VRM design.
The PowerColor AMD Radeon RX 7900 XTX Liquid Devil comes with a 2510 MHz (Game) and 2680 MHz (Boost) clock. That's a 240 MHz higher Game and 180 MHz higher boost clock versus AMD's reference (MBA) variant. For this specific overclocking venture, De8auer used an EVC2SE module from ElmorLabs which is a DIY kit to enable digital/analog voltage control using I2C/SMBus/PMBus.
The first test was done with a standard power limit raise of +15 which resulted in the card using over 400W of power and clocking around 3 GHz. With the EVC module, Der8auer can adjust the voltages on the card which are otherwise hard locked. At 1.045V, the graphics card sat around 500 Watts but offered slightly higher clock speeds close to 3050 MHz.
Running the final settings, Der8auer states that the AMD Radeon RX 7900 XTX can easily hit its power limit. The GPU reaches an overclock of 3.2 GHz (3244 MHz) & the power draw hits around 650W. That's almost twice its standard TBP of 355W. The graphics card scored 17,000 points in the 3DMark Time Spy Extreme benchmark which puts it in 13th place in the Hall of Fame. In gaming, the GPU peaked at around 3.4 GHz.
PowerColor Radeon RX 7900 XTX Liquid Devil OC 3DMark Clocks (Image Credits: Der8auer):
PowerColor Radeon RX 7900 XTX Liquid Devil OC Gaming Clocks (Image Credits: Der8auer):
Overall, while this isn't the highest GPU clock we have seen on the Radeon RX 7900 XTX (ranges around 3.4-3.5 GHz), it does go off to show that the card has potential that can be unlocked if AMD was more open in terms of power limits and clocks on this graphics card. So far, the NVIDIA GeForce RTX 4090 remains the highest clock chip with close to 4 GHz frequencies achieved on LN2 cooling and 3.3 GHz+ achieved on liquid.
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