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Author Topic: AGP bus expansion for Amiga?  (Read 9654 times)

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Offline freqmaxTopic starter

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AGP bus expansion for Amiga?
« on: August 24, 2012, 05:40:23 PM »
Do there exist any expansion for Amiga that makes it possible to make use of graphics cards with AGP bus connection ..?
 

Offline Darth_X

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Re: AGP bus expansion for Amiga?
« Reply #1 on: August 24, 2012, 06:15:00 PM »
Quote from: freqmax;704987
Do there exist any expansion for Amiga that makes it possible to make use of graphics cards with AGP bus connection ..?


No.
 

Offline freqmaxTopic starter

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Re: AGP bus expansion for Amiga?
« Reply #2 on: August 24, 2012, 06:17:01 PM »
Any AGP expansion bus for any card at all?
 

Offline Rob

Re: AGP bus expansion for Amiga?
« Reply #3 on: August 24, 2012, 06:33:47 PM »
The Elbox Dragon 1200 has an AGP port and exists.  Unfortunately it was only ever demoed and never made it onto sale.  Likely due to problems with compatibility and performance of 68k software on the Coldfire.
 

Offline commodorejohn

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Re: AGP bus expansion for Amiga?
« Reply #4 on: August 24, 2012, 06:34:38 PM »
Outside of the SAM boards, there's no point in even having AGP, because there's no way an Amiga CPU would even come close to using AGP levels of bandwidth.
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup
 

Offline danbeaver

Re: AGP bus expansion for Amiga?
« Reply #5 on: August 24, 2012, 06:38:57 PM »
No. The Amiga is too old and AGP is not supported. The closest is the "PCI" video slot on the Phase 5 accelerators for CyberVision video card. For less cost and more availability, plus extra coolness, a Mediator board with VooDoo 3 3000 or Radeon 92x0 is fast and pretty, adding support for other PCI options USB, NIC, Sound cards etc
 

Offline freqmaxTopic starter

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Re: AGP bus expansion for Amiga?
« Reply #6 on: August 24, 2012, 07:14:34 PM »
AGP is quite close to PCI from the system software side it's actually the same asfair. nyway the point is to use the card, not the bandwidth.

It's the same idea behind 8-bit MCU:s that have Ethernet connection at 10 or 100 Mbit/s.
 

Offline commodorejohn

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Re: AGP bus expansion for Amiga?
« Reply #7 on: August 24, 2012, 07:18:31 PM »
You can get PCI versions of most any AGP card, though. I've even gotten PCI versions of PCI express graphics cards.
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup
 

Offline danbeaver

Re: AGP bus expansion for Amiga?
« Reply #8 on: August 24, 2012, 07:48:52 PM »
Quote from: commodorejohn;705016
You can get PCI versions of most any AGP card, though. I've even gotten PCI versions of PCI express graphics cards.


But how many work with the Amiga?
 

Offline danbeaver

Completely off topic
« Reply #9 on: August 24, 2012, 07:54:00 PM »
The "PCI" slot for the CyberVision has direct access to the CPU and RAM, making it potentially very fast for things like RAM cards, SATA cards and the like; it is not limited to 2/4 GB as is the Amiga side
 

Offline commodorejohn

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Re: AGP bus expansion for Amiga?
« Reply #10 on: August 24, 2012, 08:06:59 PM »
Quote from: danbeaver;705022
But how many work with the Amiga?
That's a good question, but that's a software issue, not a hardware one. An AGP slot would just add a whole new slew of cards that aren't supported, and allow supported cards to be accessed faster than the CPU actually can manage...
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup
 

Offline LoadWB

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Re: AGP bus expansion for Amiga?
« Reply #11 on: August 24, 2012, 11:21:01 PM »
With AGP cards becoming more and more difficult to source (at least new ones in the wholesale chain,) it'd be a waste of time trying to develop.  The next useful expansion would be PCIe (PCI Express.)
 

Offline danbeaver

Re: AGP bus expansion for Amiga?
« Reply #12 on: August 25, 2012, 02:06:43 AM »
Quote from: LoadWB;705061
With AGP cards becoming more and more difficult to source (at least new ones in the wholesale chain,) it'd be a waste of time trying to develop.  The next useful expansion would be PCIe (PCI Express.)


Unlikely as Elbox won't even support their current hardware.
 

Offline freqmaxTopic starter

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Re: AGP bus expansion for Amiga?
« Reply #13 on: August 25, 2012, 02:15:14 AM »
@LoadWB, You'r right but I were curious if such expansion ever was made in larger quantities.

PCI-e is proberbly the next target. But I suspect FPGA Amigas will be the thing when the real hardware will "die".
 

Offline utri007

Re: AGP bus expansion for Amiga?
« Reply #14 on: August 25, 2012, 09:18:20 AM »
Individual computers has also made Zorro to PCI bridge.

X-Surf cad has a PCI card to connected Zorro to PCI brige. Would be nice to know would it be possible to use it with other PCI cards
« Last Edit: August 25, 2012, 09:21:37 AM by utri007 »
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