Most powerful PPC that can be put in an A1200?

[delshay]

There is a video of a 366Mhz Blizzard card with benchmarks on youtube,but is it the fastest? No

Speed of PCI slot plays a important role on how Bvision performs on Blizzard card,expect benchmarks figure(s) you never seen before.

Min: 37.5Mhz
Max: 41.5Mhz*

*can operate higher,but is limited by main memory/PPC processor bus speed.

[delshay]

Overclocking your Blizzard card to 366Mhz is a high risks if something goes wrong can it be repaired.

603e processor has a top end overclock of 380Mhz as far as i am aware,at this speed applications loading is insane for a classic amiga OS4.1.

NOTE: very high speed memory access is needed to get the best out of the processor at the above speed,but is not available to users of classic amiga.

WARNING! do not try the above speed on your hardware my card is modified for this.

[delshay]

Memory Bus Speed

High = 70Mhz+
Very High = 75Mhz+  ( awaiting standard for 300Mhz processor users ) no overclocking.
Master = 80Mhz+

[delshay]

UPDATE CORRECTION:

603e Processor has a top end speed of 385Mhz overclocked


WARNING! do not overclock your card to such high speed possible permanent damage beyond repair.

[delshay]

Fastest is 380Mhz with very high speed memory access,but I have a strange feeling 400Mhz+ will soon be reached.

[delshay]

If it is a 603e processor at that speed I can assure you it can go faster. Its not about the CPU,its about memory access speed.  

The Blizzard mini PCI slot is also dragged into this.

The next jump if any will take the Blizzard pass 400Mhz and beyond,but im almost certain 400Mhz+ is not far away.

If the Blizzard card hits 500Mhz+ it will certainly raise eyebrows for a classic computer.

[delshay]

Found one old mention of it in this site in 2008, but I remember an older one. Have no idea about the compatibility between the processors though, which is what matters.
Check it here:http://www.amiga.org/forums/showthread.php?t=36219&page=2

Arr that old thread. There are a few mistakes in that thread one by me,its a typo error. Somethings I have said in that thread even at the time i had no idea it would work at that time has come true.

Another processor was tested a few months later and I can confirm at that time OS4.0 almost booted into workbench. Just to make it clear it was not a 603e Processor. I think something in the flashrom may need to be change. If it is something in flashrom,it must be a very small line that need to changed.

The performance of blizzard card is there,but as I said in a few threads you need very high speed memory access. This plays a very important role as I notice it did not do a lot to graphics performance even with big changes in processor speed if memory access is not fast enough.

How the tide is turning as the PCI bus has now moved and is clocked with the PPC processor.

[delshay]

It has never being about the processor when I started this project,it has always being about bus speed. The basic standard has been set as many of you may or may not have being aware for modified cards only.

I have only being working on the the PCI slot for the past 6 months or so and is was working upto 41.5Mhz

I said the the tide is turning and the PCI slot is threatening AGP speed but its the test Blizzard/Bvision card thats able to boot into OS4.1 only. Its showing benchmarks I have never seen before. I can confirm whatever benchmark classic users are getting at 800x600 or 640x480 its showing benchmarks that exceeds both screemode with 1024x768 32bit. Theres a lot of work needed to retain this speed so I see what I can do.

NOTE: quality of sgram seems to be playing a important role in this but not certain at this stage. Also PCI slot at AGP speed works only on test card,if all goes well,will be transferred to standard card with screenshot being updated to reflect changes.

[delshay]

This thread is about "the most powerful PPC card" that works with a A1200. Blizzard cards do have 83Mhz logic and has shown to work at 83.3Mhz.

All overclocking will be removed but performance will continue to rise as per this card http://www.amiga.org/gallery/index.php?n=3692 which is the basic standard for a modified card.

[delshay]

Their are a few users that are interested in how fast a A1200 can go,this is how this thread was started. If users were not interested or don't care then why are their so many users posting here. There are so many threads I'm not interested in but I don't go around saying I don't care,its not nice.

This thread will apply mostly to classic users that are interested. If you are not interested then its probably best to post in other threads thats in your interest,as to not push away new users to amiga OS.

Let's not let new users see such comments as we do want to draw in new users to amiga. Thx in advance.

[delshay]

Blizzard PPC PCI slot @AGP speed screenshot

 http://www.amiga.org/gallery/index.php?n=3760

[delshay]

That's interesting never thought about that,a mobile graphics card.