My card has Hyundai 5.5Ns memory, BoberFett. I've O/C'd it to 275/200 with Powerstrip, but that's as far as it'll go.
Running 3D Mark 2001 at 'performance" settings, 1024x768 32 bit, it gets 4841 with tearing and some artifacts, but does complete the test. By dropping to 16 bit color, performance is greatly improved, there are about 85% less errors, and the score is 9000 and change.
After the rough time I had with installation (complete partition format, 3 Win98 installs), I'm running Cat 3.0's without a hitch. I've read where there is no real benefit to the 3.1's for a 8500LE.
My use is about 80% 2D - 20% 3D, and gaming has improved about 200% over my old Matrox, so I'm keeping the card as it would be more trouble to yank it out and RMA it again! I'm sure this card was also an RMA, once somebody saw the ram speed!