Has anyone tried to boot with the CPU option set to 7448 in the startup script and see if OS4 works?

I'm going to mod my A1XE with a 7448 when I get the time.

7448 also has twice the L2 cache, but I doubt it will make any difference under emulation.

So I have this AmigaOne XE with a 7457 @ 1Ghz that I want to mod to house a 7448 rated @ 1.7Ghz with an adapter bord.
Aside from the clockspeed increase, the 7448 also has 1MiB of L2 cache, 4 times the amount of a 7450/7455 found in stock machines.

I think it'll be fun to make a video with the before and after mod benchmarks which I'll upload to my Youtube channel.


Some benchmarks I have in mind are:

Speedsys (low level benchmarks, 68k + PPC and 640x480 + 1600x1200 GPU tests)

GfxBench2D (Radeon 9250 256MB 128 bit (seen by OS4 as 128MB/64 bit, Hyperion plz fix))

Crisot's Universe demos

Ragemem & sortbench from Sysmon

Booting Oddessy browser from ramdisk

Downscaling videos with ffmpeg.



Some games too, could be interesting since the r200 driver doesn't take advantage of the card's hardware transform lighting and clipping engine and is instead done on the CPU..

Quake 1 Software and OpenGL rendered (320x256/640x480/1024x768/1600x1200)

IOQuake3 r3 from HunoPPC (640x480 + 1024x768)

Return to Castle Wolfenstein (MiniGL) (640x480 + 1024x768)



Anymore suggestions? like do you guys have your own encoding benchmarks here or such?

As a refresher, Radeon 9250 here, no Nova/GLES2 compatibility but Warp3D and MiniGL are ok.




It will take a while before the mod is finished, the biggest hurdel now is that the resistor for the 5TH PLL needs to be removed to reach higher clock multiplier settings, after it's located and removed it has to be shipped to the United States for the conversion.