FX 5500 is placing at the position in between FX 5200 and FX 5700, which has 270/350 MHz (core/ RAMDACs), plus, its 64MB/128 bit DDR, it is so obviously a killer nVidia uses to compete with ATI 9600 SE.

GALAXY ZEUS 5500 is using the HY 3.6n/s mBGA. It implies there are some certain way to be overclock.