Akiba PC Hotline spotted a 55nm Innovision GeForce GTX 260 graphics card in a Japanese computer store. The card is an overclocked model and it's clearly indicated that it features a 55nm GPU.
The card features 216SP, a 650MHz core and 896MB GDDR3 memory clocked at 2100MHz. The shader clock is unknown. Standard 65nm GeForce GTX 260 cards feature a 576MHz core and 1998MHz GDDR3 memory.
The Japanese shop prices the card at 34,980 yen, which is around $391 at the current currency exchange rate. That sounds expensive, but you have to keep in mind that the yen has become a lot stronger this year as investors see it as a safe-heaven.