I've just installed it, and first impression is, it isn't much better than before.
It's unstable. Runs at 1.5Ghz, but seems a lot slower than others at the same speed. 1.8Ghz isn't possible anymore.
Temperatures are of course better now.
Here a 7zip benchmark with stock settings.
orangepi@OrangePi:~$ 7z b
7-Zip 9.20 Copyright (c) 1999-2010 Igor Pavlov 2010-11-18
p7zip Version 9.20 (locale=C,Utf16=off,HugeFiles=on,4 CPUs)
RAM size: 1980 MB, # CPU hardware threads: 4
RAM usage: 850 MB, # Benchmark threads: 4
Dict Compressing | Decompressing
Speed Usage R/U Rating | Speed Usage R/U Rating
KB/s % MIPS MIPS | KB/s % MIPS MIPS
22: 1667 286 567 1622 | 35573 263 1218 3209
23: 1766 313 575 1800 | 45386 344 1206 4153
24: 1704 315 581 1832 | 44655 345 1200 4142
25: 1547 299 591 1767 | 38169 302 1189 3589
----------------------------------------------------------------
Avr: 303 578 1755 314 1203 3773
Tot: 308 891 2764
It performs very badly. 2/3 of what it should be at 1.5Ghz.
I've then set the governor to performance and everything starts to lag like crazy. 7-zip results are very bad.
I bought a large heatsink size 37*37*24mm and modified with my dremel. And then connect the heatsink and the soc with a pice of copper and 3M™ Thermally Conductive Adhesive Transfer Tape 8810.
I've learned that both the ap6255 module and the ddr ram onboard generates lots of heat.
ap6255 gets overheat under heavy load and stop working until core temperature drops under alert temperature without a proper heatsink