No
difference between 128Mbx2 and 256Mb
Price crosses
over for two times of 128Mb and 256Mb.

Figure 1: SDRAM
- 128Mb & 256Mb price trend and price difference

Figure 2: DDR
DRAM - 128Mb & 256Mb price trend and price difference

Figure 3: 128Mb
vs. 256Mb output in May.
From figure 1
and 2, the left axis of price difference of 256Mb price minus two times of
128Mb price already reach the zero. From figure 3, the monthly output of 128Mb
in SDRAM took 26.9% which is less than 256Mb's 29.5%. 128Mb DDR's output is
15.83% which also less than 16.5 of 256Mb's output. In total, 256Mb's 45.9%
is higher than 42.78% of 128Mb's share.
Price and production
crossing over officially announces the main stream migration. 256Mb price
will become more competitive in commodity market, price trend in these items
will be more violent.
On the other
hand, 128Mb won't get fade. 8 chips of 128Mb make 128MB module; 16 chips of
128Mb make 256MB module. The flexibility of this generation will keep it active
on the market.