mjbn1977 :
all that I understand. But didn't Nvidia change the Boost algorithm and now its called boost 4.0 with RTX?
But my question is, how determine reviewers the max boost possible with a given card. They usually write something like: we reached max boost of 2070Mhz but in games in average at 1990Mhz. Does the Nvidia Boost 3.0 or 4.0 algorithm have a set value how high the max boost over the set boost clock is?
For example....my RTX 2080 after overclocking with the OC scanner will show 1910 MHz boost in GPU-Z. The factory overclock is at 1845Mhz. But when I run games, Riva Tuner shows clock rates of about 1965Mhz to 1980Mhz depending on the game. That is about 55 to 70Mhz over set boost clock. In some benchmarks I ran (I believe it was Time Spy) I even saw clock rates over 2000Mhz with the same boost clock of 1910Mhz. So the question is, if there is a maximum max boost over a specific max boost?
I forgot about 4.0, 4.0 according to Tom Petersen is just a more optimized version of 3.0, 4.0 doesn't have really any new fancy features so to speak.
Yeah it is odd that nvidia doesn't give the max GPU Boost 3.0 clock (because there is one). However, you'll never hit that max boost clock basically ever unless your on a crazy custom loop that can keep your GPU at under 40C under all loads.
The reason why your seeing different clock speeds in different games/benchmarks is because of GPU load. Each program loads a GPU either more or less, when it's less then GPU boost has some headroom to bump up the clock and vise versa.
For my GTX 1080, my official boost clock is 1823mhz (with overclock) and GPU Boost 3.0 will push an absolute max of 1949MHz (again with a custom overclock) before it goes above 45-50C.
For lighter games, I usually sit around 1911mhz, then for more demanding titles (1440P) i run around 1850mhz. Then if I run those games at 4k-5k resolutions (DSR) my average clock speed is 1750MHz.