Connect3D X1900 GT
 

This card has 256MB of memory running at 600MHz (1200MHz effective) which
is strange as the memory modules are the same 1.4ns Samsung parts that are
on the nVidia 7600 GT and 7900 GT cards. These are technically rated to
715MHz despite only running at 600MHz, in fact on the nVidia cards we
squeezed speeds as high as 915MHz out of them when overclocked - it's always
good to know that you've got some headroom to play with. The core is running
at 575MHz, compared to the 625MHz of an XT