Some more Big Navi leaks coming in:
> Something has changed regarding RDNA2/Big Navi's base clock, game clock and boost clock vs Navi1X.
> Base clock is not that high after all
> The distance between the 3 clocks has grown vs Navi1X especially between base clock and game clock. 🤔
> Something has changed regarding RDNA2/Big Navi's base clock, game clock and boost clock vs Navi1X.
> Base clock is not that high after all
> The distance between the 3 clocks has grown vs Navi1X especially between base clock and game clock.
Update in a bit
Navi21 XL
> Base clock 1350MHz to 1400MHz
> Game clock 1800MHz to 1900MHz
> Boost clock 2100MHz (maybe 2200MHz)
Navi21 XT
> Base clock 1450MHz to 1500MHz
> Game clock 2000MHz to 2100MHz
> Boost clock 2200MHz to 2400MHz
[Update Navi21] 🧐
Navi21 XL
> Base clock 1350MHz to 1400MHz
> Game clock 1800MHz to 1900MHz
> Boost clock 2100MHz (maybe 2200MHz)
Navi21 XT
> Base clock 1450MHz to 1500MHz
> Game clock 2000MHz to 2100MHz
> Boost clock 2200MHz to 2400MHz
1/2 https://t.co/ig6WIJmbgT
— _rogame 🇵🇸 (@_rogame) October 18, 2020
> Reference cards on the lower end of the clock range
> AIB cards on the higher end of the clock range
Navi21
Base -> Game (+500MHz to 600MHz)
Game -> Boost (+200MHz to 300MHz)
For context
Navi10 1605MHz/1755MHz/1905MHz
Base -> Game +150MHz
Game -> Boost +150MHz
https://twitter.com/_rogame/status/1317731737347248129?ref_src=twsrc%5Etfw
This is similar to how their Ryzen 5000 series is where the baseclock is kinda "low" but the boost is quite high. Having a "low" baseclock would leave room for a lot of variations for AIBs. As a reminder of what the differences are back during the 5000 series launch:
"With an application behaving viral like say Furmark, you’ll see the Radeon RX 5700 (XT) specced at 1605 MHz base clock frequency. Gaming on a heavy on the GPU title (which is what I call normal gaming) will result in a 1755 MHz clock frequency. However, where it can for very short periods of time - boost towards 1905 MHz as briefly as that will be. But arguably you are going to see a 1.7 ~1.8 GHz dynamic clock when gaming, differing per title and workload."
https://www.guru3d.com/articles_pages/amd_radeon_rx_5700_and_5700_xt_review,5.html
We will see if there's any changes to how boost works with RDNA 2.
Last edited by Jizz_Beard_thePirate - on 18 October 2020 
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