The best 68060 accelerator for A4000?

[HammerD]

The fastest is Quikpak 060 as it's the only one that benefits from EDO Ram. But just for tower models.

There is a desktop version of the Quikpak 060:

http://www.hd-zone.com/amiga/A4000T.html

[HammerD]

Nice comparison of some cards (GVP A4060DT and Quickpak are missing)...

http://amiga.resource.cx/perf/sysspeed.pl

I have some information here:

http://www.hd-zone.com/amiga/index.html

And benchmarks here and further information on the boards:

http://www.hd-zone.com/amiga/68060-chart.html

http://www.hd-zone.com/amiga/quickpak.html



For the Quikpak 68060 board:


BusSpeedTest 0.19 (mlelstv) Buffer: 262144 Bytes, Alignment: 32768 (bustest fast rom)

Memtype       Cycle    Bandwidth
fast    readw    44.8 ns    44.6 meg/sec
fast    readl    71.1ns    56.6 meg/sec
fast    readm    73.1ns    54.7 meg/sec
fast    writew    44.8ns    44.7 meg/sec
fast    writel    89.8ns    44.6 meg/sec
fast    writem    89.0ns    45.0 meg/sec
rom    readw    44.8ns    44.7 meg/sec
rom    readl    69.9ns    57.2 meg/sec
rom    readm    73.0ns    54.8 meg/sec


Memspeed Benchmarks (Memspeed Copyright 1996 Frank Wille)


Ram type: 60ns Fast Page Mode (FPM) vs. 60ns EDO Ram (EDO)

Type    FPM Read    EDO Read    % Change
Chip Ram    4617 kB/s    4617 kB/s    0.0%
Fast Ram    46492 kB/s    54545 kB/s    +17.3%
Rom    46586 kB/s    54545 kB/s    +17.1%
 
Type    FPM Write    EDO Write    % Change
Chip Ram    6969 kB/s    6968 kB/s    -0.01%
Fast Ram    38927 kB/s    44055 kB/s    +13.2%
 
Type    FPM Copy    EDO Copy    % Change  
Chip Ram    2777 kB/s    2777 kB/s    0.0%
Fast Ram    22470 kB/s    26716 kB/s    +18.9%

As you can see from the table above, the EDO ram has a significant impact on both the read and write speeds of Fast ram, with an upto 18.9% performance boost over FPM (fast page mode) ram, with the Quikpak 060 board.