The latest CCRL Rating Lists and Statistics are available for viewing from the following links: (40/40) (40/4) (FRC 40/4)

Our 40 moves in 40 minutes repeating and 40 moves in 4 minutes repeating are both adjusted to the AMD64 X2 4600+ (2.4GHz).
However, our testers use different hardware ranging from the Q8200 through to the most recent i7's and octals. We benchmark our hardware for consistency of results.
These time controls are roughly equivalent to 40 moves in 15 minutes repeating or 40 moves in 1.5 minutes repeating on modern computers.

Please note that the three lists are often updated separately to each other. The FRC list is only updated when a new engine or engine version is being/has been tested.
Also, please note that the 40/40 and 40/4 lists are constructed from totally different databases and not comparable to each other.

Thanks to all of our currently active testers (Graham, Ray, Tirsa, Gabor, Sergio, Daniel and Volodymyr). Thanks also to for hosting our website.

40/40 testing this week that I'm aware of will include (with live broadcast port for TLCV noted where applicable):

75th Amateur Series Division 8 Tournament (finishing Wednesday 16053)
75th Amateur Series Division 9 Tournament (continuing 16001)
76th Amateur Series Division 1 Tournament (starting Thursday 16002)
Godel 6.0 64-bit Gauntlet (finishing Thursday 16063)
Igel 1.8.3 64-bit Gauntlet (continuing 16064)
Raven 0.50 64-bit Gauntlet (starting Thursday 16065)
Francesca MAD 0.25 64-bit Gauntlet (continuing 16066)
Cheese 2.1 64-bit Gauntlet (continuing 16091)
Marvin 3.4.0 64-bit Gauntlet (finishing Monday 16092)
Bagatur 1.8 64-bit Gauntlet (starting Monday 16092)
Arasan 21.4 64-bit Gauntlet (finishing Tuesday 16093)
Zevra 2.1.2 r248 64-bit Gauntlet (starting Tuesday 16093)
Defenchess 2.2 64-bit Gauntlet (continuing 16094)
Schooner 2.1 64-bit 4CPU Gauntlet (continuing 16083)
SugaR NN 1.1 64-bit 4CPU Gauntlet (continuing 16084)
Lc0 0.21.2 nn42716 GPU Matches (being run by Ray)
Various 4CPU and 1CPU Gauntlets (being run by Volodymyr)
Various 4CPU and 1CPU Gauntlets (being run by Tirsa - on hold)
Various 1CPU Tournaments (being run by Sergio)

40/4 testing since the last update report has included (thanks to Gabor, Sergio and Volodymyr):

Komodo 13.1 64-bit
AdaChess 3.6 64-bit
FabChess 1.9.1 64-bit
Bagatur 1.8 64-bit
Jacksprat 1.0 64-bit
Zevra 2.1.2 r248 64-bit
Swiss Tournaments (Sergio)

40/4 FRC testing since the last update report has included (thanks to Ray):

Allie 0.5 nn42850 GPU