Along with a new chiplet design for the Radeon RX 7000 series, AMD also introduced decoupled clock speeds. With this feature’s help, AMD lowered the overall board power by running the shaders and the front end of the GPU at different frequencies. This results in a total board power of 355W on the Radeon RX 7900 XTX compared to 450W on the RTX 4090.
On the Radeon RX 7900 XTX with the decoupled clock speed feature, the boost frequency of the front end will be running at 2.5 GHz while the stream processors or the shaders will boost at a slightly lower 2.3 GHz. According to some rumors, Navi 31 is said to be able to boost up to 3 GHz, but this certainly does not look to be the case and might be a problem at the hardware level rather than software.
Bad news:
Navi31 needs a respin to fix the issue preventing to reach the 3GHz target at reasonable power level. Hardware team failed this design.
Good news:
The problem has been identified and corrected for Navi32— AGF (@XpeaGPU) November 6, 2022
According to a reliable source @XpeaGPU, Navi31 needs a respin to fix this issue. Because of this flaw at the hardware level, it is currently impossible to overclock the Radeon RX 7900 XTX to reach 3 GHz, no matter how much power the GPU is fed. @XpeaGPU further states that custom variants of Radeon RX 7900 XTX equipped with three 8-pin power connector can boost to 2.8 GHz at 450W, but that only results in a 5% uplift in performance on synthetic benchmarks.
RX 7900 XTX AIB cards with 3×8-PIN reaches 2.8GHz at 450W. Less than 5% perf uplift by this OC on synthetic benchmark (TSE)
For now, cannot go above 2.9GHz, whatever the voltage, whatever the power, whatever the binned die, because of "instabilities" 🤔— AGF (@XpeaGPU) November 6, 2022
It’s not all bad news though, because the source also states that AMD was able to spot this hardware-level fault and was able to fix it for the Navi 32. Navi 32 is considered the little brother to Navi 31 from AMD and will compete against mid-range offerings from Nvidia. However, we would have to wait till 2023 to learn more about the mid-range offering from the Radeon RX 7000 series.
What are your thoughts about the limited overclocking potential for the Navi 31 GPU?
Check Out More News: Radeon RX 7900 XTX Competes With GeForce RTX 4080
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[News Reporter]
Avinash is currently pursuing a Business degree in Australia. For more than three years, he has been working as a gaming journalist, utilizing his writing skills and love for gaming to report on the latest updates in the industry. Avinash loves to play action games like Devil May Cry and has also been mentioned on highly regarded websites, such as IGN, GamesRadar, GameRant, Dualshockers, CBR, and Gamespot.
