Options for A1200

[Sim085]

Originally Posted by Retrofan

I would recommend to you to get a second hand ACA 1230/56, much cheaper than a 060, and also a Fast ATA MKIV.

From what I can see there are three ACA cards for the A1200:

[a] 1230/28
[b] 1230/56
[c] 1233/40

I am confused between [b] and [c] as [c] seems to be the model after [b] and has an MMU but [b] is at 56MHz while [c] at 40Mhz.

Also, [c] description is that it is "Full 68030" but image of this there is written 68(EC)030

I am putting links here:
http://amigakit.leamancomputing.com/...oducts_id=1005
http://amigakit.leamancomputing.com/...7&currency=EUR

[ajk]

The exact specs of the ACA cards are determined by what components are/were available at the time of manufacture - you can't buy new 68030 CPUs just like that, these days.

[Retrofan]

In terms of speed the fastest is the 1230/56 and second the 1231/42, both aren't available new. A 1231/42 is faster than a Blizzard 030, I get 10 MIPS (Million Instructions Per Second) with SysInfo and (don't remember exactly) around 12,65 with the 30/56. The only thing better the B030 has over the ACA31/42 is the Fpu it has and less compatibility problems with some amiga boards.

About the ACA 1231/42:

Originally Posted by Retrofan

Originally Posted by Schoenfeld

There are no plans for a faster version. This one is already tweaked to the max, and the design is based on a QFP CPU, which is not available as a 50MHz version.

Compared to the Blizzard 1230-IV, which uses a 50MHz processor, the ACA1231 is still faster, despite it's lower clock rate. While the Blizzard 1230-IV shows 9.88 MIPS in Sysinfo, the ACA1231 shows 9.94MIPS, sometimes 9.98MIPS (Sysinfo isn't all that accurate and depends on cache alignment and setpatch version).

Don't let the MHz number confuse you. The ACA1231 is absolutely in the highest 68030 class that you can think of, and the reason is it's superfast memory. The first-access penalty is even faster than on the old 56MHz card, which makes it faster on a cache-miss.

If you give me a few testcases, I'm happy to run them for you. I think I've posted an AIBB module before, didn't I?

Jens

Edit: AIBB module is in post#2211:
http://eab.abime.net/showpost.php?p=...postcount=2211