DDR from z-buy.com

[eyi]

i ordered two sticks of samsung 256mb pc2700 ddr from z-buy and i just got it.
The number on it reads K4H280838D-TCB3.
According to the samsung product guide the banks are 8M x 16. is this any worse off then say the K4H560838C-TCB3 which is 32m x 8?
latency problems or anything?

thanks,
-eyi

heres the product guide: Samsung DDR SDRAM Product Guide