What’s the difference between DSx86 and DS2x86 ?

Maybe,as many players knew,the DSx86 has two versions,one is original DS x 86,the other one is a new version called DS2x86.So,this article is mainly forced on their distinguish and their own features and hope it will let users have a better know of this emulator.

What is DS X 86 ?
DS x 86 is a PC emulator for Nintendo DS. It's purpose is to allow you to run old DOS games on your Nintendo DS game console.This original DSx86.nds can suit  for all common flash carts.
What is DS2x86 ?
the DS2x86 is the DOS emulator made exclusively for Supercard DSTwo and its newest update version is 0.09 Alpha.
Supercard DSTwo Emulator Updated Features :
• Implemented screen scaling for all common graphics modes.
• Fixed the DOS and BIOS date/time functions to return proper Real Time
Clock values. This might fix some hanging games.
• Fixed EGA Read Mode 1 handling (fixes EGATrek graphical issues)
• Fixed EGA Read Mask initial value (fixes Ultima V hanging)
• Added a warning message for games that need a Floating Point Unit.
• Screen copies are saved to incrementally numbered files SCR00.BMP..SCR99.BMP.
The difference of them lies in following sides :
In the respect of CPU :
DSx86: 80286 processor, including the protected mode features (for running Windows 3.00a in Standard Mode). The emulation runs at a speed of around 10MHz (DS mode) or 20MHz (DSi mode) 80286 machine.
DS2x86: 80386 processor, including the protected mode features (for running DOS4GW games). The emulation runs at a speed of around 40MHz 80386 (which equals a 20MHz 80486) machine.
In the respect of Memory :
DSx86:
640KB of low memory, 1.5MB of EMS memory and ~512KB (DS mode) or 8MB (DSi mode) of XMS memory.
DS2x86:
1.640KB of low memory, 4MB of EMS memory and 16MB of XMS memory.
2.VGA graphics.
3.SoundBlaster (including AdLib-compatible FM sounds) sound card. (DS2x86 is still missing many audio features.)
4.83-key US keyboard.
5.Mouse.