A1XE 7448 benchmark suggestions

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.

Some examples to compare maybe...

https://amiga-news.de/de/news/AN-2012-02-00011-EN.html
https://amiga-news.de/de/news/AN-2015-04-00021-EN.html

Hi DrProton,

That sounds like an interesting project!

I'd love to see how the demo Arte by Sanity runs in E-UAE after you've modded the AmigaOne XE. Sound stutters a lot on a Sam440 Flex, so wonder how it will perform on your setup. Thanks in advance.

Best of luck with the project! Looking forward to the videos.

Btw, what is the link to your YouTube-channel?

Hi,

very nice idea! I am interested in CPU modding. It will be fine, if you also post some photos and experience.

And regarding the gfx tests, I made this with Sam440ep-flex graphics cards:
https://www.amigaportal.cz/node/149415
it is in Czech language, so google helps.

Btw I have bad experience with ragemem Videobus benchmark. It gives weird results, gfxbench2D is much better here.

That tests was for graphics experience. If I compared systems I use this:

RAM: stream
VRAM + 2D: gfxbench2D
CPU: Dhrystone1 ( no FPU, no VMX ), MFlops ( FPU ), lame ( all with VMX )
HDD: ScsiSpeed, DiskSpeed ( only average and max from Read, long alligned buffers)
GFX drivers:Cow3D, MPlayer, SDLBench
NET+HTML: TCPSpeed, wirple.com/bmark
Games: GLQuake, ioQuake3, Tower57, 1941, WingsBattlefield - all this use diferrent gfx drivers and libraries. Than also RTCW.
Emu: E-UAE ADoom, DOSBox Quake


for this I have results from my AmigaOS machines

I'd be interested in one of those adapters! For a Mac CPU module??

P.S. and if you will have such great AmigaOne XE, I recommend also change graphics card to Radeon 9000PRO. It is fastest and additionally sometimes capable of overclocking.

I have a Aone XE with a 1267MHZ CPU clocked with 1533MHZ.
It is not really fast as compare with an X1000 or X5000. Because, the speed is only in CPU and caches all other components are as slow as before.
You have a 133MHZ FSB, Ram is not faster, AGP and so on.
You only see a fast MIPs in a benchmark.

If you want a fast system, take a X1000 or X5000.
It is felt many times faster.

@Evillord68

you are right. It is small car with powerfull engine. But:

HDD will be faster, all network tasks will be faster ( with 1GbE card ), games will be faster - especially those that heavily use CPU - like Tower57.

And especially upgrading and optimizing old computers is really great fun!!

@DrProton i haved made a FAQ in my home-forum for Aone SE, XE and micro. But it is in german.
There are listed all Motherboard mods and so on.
I made a multiplicator list and there is a photo from the 5th resistor.

https://www.a1k.org/forum/index.php?threads/32210/

But without registration you don´t see thís post.

The question is, does Uboot and the OS4.1 Kernel support the 7448 CPU?

@Evillord68

thank you for info. I am thinking about registration there - in short time it is second case which is interested me. But my german is good for ordering the wine and beer only. And google translates from Czech language is very far from ideal.

About 7448. Don't know.
If somebody used 7447 in AmigaOne XE, there is big chance it will works. It is nearly identical CPU. Other very similar microarchitectures are MPC7445, MPC7441 all developed from 7450.
And AmigaOne has 7451 which also derives from 7450 but other way. So I wonder...