This file shows the performance differences between Windows 3.0 and 3.1, and between Standard and Enhanced mode Windows. The review machine is Technical Pixies own home-built 486/33 clunker which was used to develop WindSock. CPU Speed: There is very little difference in CPU speed between either version of Windows or either mode. Standard mode is slightly faster than Enhanced, but the difference is too minor to bother about. Video Speed: Again standard mode is slightly faster. The difference between Windows 3.0 enhanced mode and the others is marked, MicroSoft must have been doing something wrong under Win 3.0. In each case the same driver (Video7 640*480 256 color) is used. Disk speed: Standard mode seems to be quite a bit faster in both cases. SmarDrive 4.0 with write caching has been used in each case, so the results for Windows 3.0 with the 3.x SmartDrive would have been much worse. Memory Speed: No significant differences between the tests. This motherboard is a Taiwanese clone and the memory figure is quite disappointing (compare the Compaqs reviewed in COMPAQM.WSK). Overall: The speed differences between the various tests would not be noticable to a user. It would have been a different story if I had used the old Windows 3.0 SmartDrive. The performance advantages of Windows 3.1 over 3.0 seem to be mainly in the imporved SmartDrive and Video Drivers (VGA.DRV 3.10 is much better than 3.00). Reviewed by: Chris Hewitt