Barely. I have both, and honestly, except in things that specifically use 040 code, I'd give the speed edge to the 030 card! Both are dreadfully underpowered for an A4000.
Never had the opportunity to play with an A4000, but the A3640 board in my A3000 is a definitely a noticeable speed boost. Wouldn't ever want to do without it, unless there were a faster card to replace it with...
:-D