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4 G4 processor chip (picture)
- Thread starter mymemory
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cool, i hope Apple makes Quad processor macs in the future just so I can say to my friends when they are crappin on about how many vertex shaders are available in there graphics cards. Then I can just say "Yes but do you have a G4 Quad!"
Ensign
Ensign
post the link, I'd love to see it.
The company I work has a group doing hyperspectral and buys g4 processor cards - probably like this one for thier projects. If I didn't know it was real I'd say it was a photoshop job. The only thing is you have to pretty much write all the code yourself.
D
The company I work has a group doing hyperspectral and buys g4 processor cards - probably like this one for thier projects. If I didn't know it was real I'd say it was a photoshop job. The only thing is you have to pretty much write all the code yourself.
D
http://www.transtech-dsp.com/powerpc/vq750.htm
I don't think Apple would EVER use this, even if it was Mac compatible.
Reasons: supports just 512MB of RAM
supports no PC2100 memory (DDR)
No L3 Cache
Just 10/100 ethernet
I don't think Apple would EVER use this, even if it was Mac compatible.
Reasons: supports just 512MB of RAM
supports no PC2100 memory (DDR)
No L3 Cache
Just 10/100 ethernet
starving quad G4
Even though the feeds to the bridge, which feeds the 4 CPU's, are 64 bit, they're only 100 MHz from the RAM and 66 MHz from the other thing (?). The 33 MHz feed is 32 bit. All that said, it still cannot come close to feeding a steady stream of data to those quad processors. So, however, large the L2 cache is on each of those CPU's, that seems to limit the use of those CPU's. I cannot think of an application that would crunch and constantly re-crunch the same small amount of data, over and over and over. Otherwise, the four CPU's are starved for data.
Did I miss something from the block diagram that pumps loads of data to the CPU's to crunch?
Eirik
Even though the feeds to the bridge, which feeds the 4 CPU's, are 64 bit, they're only 100 MHz from the RAM and 66 MHz from the other thing (?). The 33 MHz feed is 32 bit. All that said, it still cannot come close to feeding a steady stream of data to those quad processors. So, however, large the L2 cache is on each of those CPU's, that seems to limit the use of those CPU's. I cannot think of an application that would crunch and constantly re-crunch the same small amount of data, over and over and over. Otherwise, the four CPU's are starved for data.
Did I miss something from the block diagram that pumps loads of data to the CPU's to crunch?
Eirik
yeah
I read about a quad-Gx VME card for x86/linux around 3 years ago. Old news.
check out http://www.mc.com if you *really* wanna be stimulated
I read about a quad-Gx VME card for x86/linux around 3 years ago. Old news.
check out http://www.mc.com if you *really* wanna be stimulated
there are tons of these aroud. almost every DSP accelerator uses multiple moto PPCs. here's the one i use:
http://www.tcworks.de
http://www.tcworks.de