AMD is working on an update for the Radeon RX 7900 GRE that will address reports of the new(ish) graphics card, which was formerly exclusive to China, failing to reach maximum performance via overclocking, according to a reviewer. Many have pointed out that this is an artificial limitation, but AMD has claimed that it is merely a “bug.”
The word from Hardware Unboxed’s Steve Walton:
- “…what is a bit exciting is that AMD has told me that extremely limited overclocking of the GRE cards is a bug.”
- “…it will be addressed shortly…hell, it might even be fixed by the time you watch this.”
TPU on the Radeon RX 7900 GRE’s overclocking process, noting an “artificial limitation”:
- To start, you have to raise the power limit to maximum, the slider ends at +15%
- Next, max out the memory clock slider, it’s rather short, topping out at 2316 MHz, definitely not high enough to use the full potential of the memory chips.
- Now, also increase “Max Frequency” to maximum, which is at 2803 MHz, not much higher than the default of 2530 MHz, another artificial limitation
- At this point run a first stability test and record performance.
- Now gradually lower the maximum voltage (default is 1.05 V), until your card becomes unstable, which happened for me at 0.89 V to 1.02 V, depending on the card.
- Increasing the Min Frequency slider made no significant difference in performance. This might increase power consumption though for very little actual FPS improvement.
TPU’s OC findings:
Tom’s Hardware noted:
The Radeon RX 7900 XT has a 2,000 MHz game clock and a 2,400 MHz boost clock. In contrast, the Radeon RX 7900 GRE has a 1,880 MHz game clock and a 2,245 MHz boost clock. We tested the Sapphire Radeon RX 7900 GRE Pulse with a 1,927 MHz game clock and a 2,293 MHz boost clock. Our results…illustrate how the Radeon RX 7900 XT dramatically exceeds the state boost clock, while the Radeon RX 7900 GRE is much closer, on average, to the rated boost clock.