The speed of expanded memory

In the main the speed of expanded memory isn’t a critical issues for 386/486 systems because all memory managers produce an acceptable fast implementation. What is more interesting is how this simulated expanded memory compares to the real thing-i.e. hardware implemented expanded memory. Some 386 machines have the choice of implementing expanded memory using hardware built into the mainboard or simulating it in software using an EMM. The most important factor in evaluating LIM 3.2 expanded memory is simply data transfer rate, i.e. how fast data can be moved to and from expanded memory in KBytes
386MAX has an automatic installation mode that will configure and optimise your machine’s memory use in one step. It doesn’t have the extras that QEMM 386 supports in the sense that it will not move the MS-DOS data areas into UMBs and it doesn’t have stealth to move BIOS ROMs that are in use. It will, however, move BIOS ROMs that are not used! Its biggest single advantage is that it is DPMI compatible. At the moment there are only a few programs that demand DPMI, most will work with either DPMI or VCPI, but the number will probably grow