Let us first compare the power between two designs. For 8kx32 sram, there will be one clock read and 1 clock write. But if we divide that into two then we need to have more clocks and we might see more power dissipated in the second design than first.

Performance wise

Area wise we need to built clock to 2 srams reset to 2 srams so we may end up having more area used than the first design.