905e main frequency: 2.5G L1=256 L2=2M L3=6M Power consumption 65w645 Main frequency: 3.1G L1=512 L2=2M no L3 power consumption 95w 905e should be a quad-core energy-saving version of Yilong 2, if it exceeds 3.2G, 645 is certainly not as good, but the energy-saving version of the CPU is locked frequency doubling, not good overclocking. No overclocking. They're about the same. Overall, the performance of the Yilong is definitely stronger than the Velocirong, it is best not to buy low-power directly on the Yilong 2 955