A little followup: after testing new and beta drivers with no luck, I decided to install a different board: NV7600GT without changing the drivers.
The NV7600GT worked very well at x16 speed and the new drivers (169.21) were ok. I removed the NV7600 and installed the NV8600GTX and this time was running at 16x as expected. All ok ? Not completely: the drivers 169.21 for sure give different onscreeen performance, comparing with the previous 163.75. They are roughly 65% slower. Anyway I achieve the same speed when testing in-memory read-write benchmarks: 1.7GB/s write, 1.0GB/s read. For onscreen I mean -> compute some graphics (with opengl), make an argb bufferedimage, paint onscreen (jpanel). My guess is that Nvidia changed something in the "screen updating" code. This is jdk independent: jdk 1.5.x and jdk 1.6.0_04 give the same results. Cheers, Mik ============================================================================ > ClassX Development Italy Via Francesca, 368/I I-56030 S.M. a Monte (PI) < > Tel.(+39)-0587-705153 Fax.(+39)-0587-705153 WEB: http://www.classx.it < ============================================================================ =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
