apollo vs blizzard vs gvp

[humppa]

apollo is roughly equivalent to blizzard, also?

Memory access is a lot faster on Apollo cards than on Blizzards.
You will also notice a big increase of IDE HD transfer speeds (using either Idefix Express or Powerflyer) when using an Apollo over a Blizzard.

[humppa]

I switched from an Apollo 1240 to a BPPC (040 at 25Mhz) and I must say that it "feels" a lot slower.
The main advantage is the PPC of course (although I use it less than I thought) and that I am no longer limited to just 32MB of RAM.
Using the Apollo however, FastMem access (tested using Sysspeed) was around 50% faster and transfer rates of my Idefix Express were about 2MB/s higher than with the BPPC.

I never had any stability issues with it.

[humppa]

Concerning memory access, also a Blizzard 1260 is slow compared to an Apollo 1260.
Check out this thread for example.

"On the overall ratings I got the following:

                  Integer    Graphics   FPU
Apollo 1260        15.71      3.62     46.20
Blizzard 1260      13.70      3.53     45.90
Apollo faster by    15%       2,5%      0,7%

The largest difference was on the MemTest test, where
Apollo was ~26 % faster than Blizzard.

Apollo was fastest on 17-18 of the 20 tests. However, most
tests gave approx. the same result. It seems like Apollo
has faster memory access which makes it faster on memory
intensive tests.

With SCSISpeed, Apollo got the best transfers from
the IDE drive: Up to 1,95 MB/sek, as opposed to 1,8 MB/
sec with Blizzard.

With Busspeed by Michael Van Elst (sp? - sorry if wrong),
the maximum for Apollo was 57 MB/sec as opposed to
50 MB/sec with Blizzard."

[humppa]

I wonder if this deficiency has to do with the dual CPU design of the card.

No, since it also applies to a Blizzard 1240/40 compared to an Apollo 1240/40 and a Blizzard 1260 compared to an Apollo 1260.