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-   -   AGP - Accelerated Graphics Port - What is AGP? (http://www.thetechlounge.com/forum/showthread.php?t=1761)

Sapphire9800 08-17-2003 03:55 PM
AGP - Accelerated Graphics Port - What is AGP?
 
http://www.sysopt.com/agp.html
AGP will, among many other benefits, deliver a peak bandwidth that is 4 times higher than the PCI bus using pipelining, sideband addressing, and more data transfers per clock. It will also enables graphics cards to execute texture maps directly from system memory instead of forcing it to pre-load the texture data to the graphics card's local memory. AGP is based on the PCI 2.1 standard which calls for a 66MHz PCI bus speed.

AGP vs. PCI AGP PCI
Pipelined requests ---Non-pipelined
Address/data de---multiplexed- Address/data multiplexed
Peak at 533MB/s in 32 bits--- Peak at 133MB in 32 bits
Single target, single master ---Multi-target, multi-master
Memory read/write only, no other I/O operations ---Link to entire system
High/low priority queues ---No priority queues

The result of AGP is a much smoother frame rate and the ability to display 3D graphics and video that is many times more realistic and much a higher quality than ever before found a PC.

Additionally, AGP doesn't share bandwidth with other devices, whereas the PCI bus does share bandwidth.

ELiTE KiLLaH 08-17-2003 05:00 PM
cant wait for pci-x :)

Brian 08-17-2003 06:03 PM
Re: AGP - Accelerated Graphics Port - What is AGP?
 
Quote:
Originally Posted by Sapphire9800
AGP will, among many other benefits, deliver a peak bandwidth that is 4 times higher than the PCI bus using pipelining, sideband addressing, and more data transfers per clock. It will also enables graphics cards to execute texture maps directly from system memory instead of forcing it to pre-load the texture data to the graphics card's local memory. AGP is based on the PCI 2.1 standard which calls for a 66MHz PCI bus speed.

AGP vs. PCI AGP PCI
Pipelined requests ---Non-pipelined
Address/data de---multiplexed- Address/data multiplexed
Peak at 533MB/s in 32 bits--- Peak at 133MB in 32 bits
Single target, single master ---Multi-target, multi-master
Memory read/write only, no other I/O operations ---Link to entire system
High/low priority queues ---No priority queues

The result of AGP is a much smoother frame rate and the ability to display 3D graphics and video that is many times more realistic and much a higher quality than ever before found a PC.

Additionally, AGP doesn't share bandwidth with other devices, whereas the PCI bus does share bandwidth.

Sapphire9800, if you copy directly from a website, always give credit to the author.

http://www.sysopt.com/agp.html

You posted a few threads that also seem to be a copy and paste job. Go back and link to your sources, and do not take credit for others work. Do not let this happen again.

hone 08-18-2003 10:41 AM
Quote:
Originally Posted by ELiTE KiLLaH
cant wait for pci-x :)
What about the HyperTransport from AMD?

nark 08-18-2003 01:11 PM
Re: AGP - Accelerated Graphics Port - What is AGP?
 
Quote:
Originally Posted by Sapphire9800
http://www.sysopt.com/agp.html
AGP will, among many other benefits, deliver a peak bandwidth that is 4 times higher than the PCI bus using pipelining, sideband addressing, and more data transfers per clock. It will also enables graphics cards to execute texture maps directly from system memory instead of forcing it to pre-load the texture data to the graphics card's local memory. AGP is based on the PCI 2.1 standard which calls for a 66MHz PCI bus speed.

AGP vs. PCI AGP PCI
Pipelined requests ---Non-pipelined
Address/data de---multiplexed- Address/data multiplexed
Peak at 533MB/s in 32 bits--- Peak at 133MB in 32 bits
Single target, single master ---Multi-target, multi-master
Memory read/write only, no other I/O operations ---Link to entire system
High/low priority queues ---No priority queues

The result of AGP is a much smoother frame rate and the ability to display 3D graphics and video that is many times more realistic and much a higher quality than ever before found a PC.

Additionally, AGP doesn't share bandwidth with other devices, whereas the PCI bus does share bandwidth.

but they do share IRQ with the first PCI bus. Shame, what a shame.

ELiTE KiLLaH 08-18-2003 01:40 PM
Quote:
Originally Posted by hone
Quote:
Originally Posted by ELiTE KiLLaH
cant wait for pci-x :)
What about the HyperTransport from AMD?

well yah that too
but that has to do wtih cpu/ram
this is an addin card interface with like doulbe the capability of agp i believe

im also waiting for hypertransport :)

hone 08-18-2003 10:26 PM
Quote:
Originally Posted by ELiTE KiLLaH
Quote:
Originally Posted by hone
Quote:
Originally Posted by ELiTE KiLLaH
cant wait for pci-x :)
What about the HyperTransport from AMD?

well yah that too
but that has to do wtih cpu/ram
this is an addin card interface with like doulbe the capability of agp i believe

im also waiting for hypertransport :)
w00t! you going to snipe an athlon 64?

ELiTE KiLLaH 08-19-2003 01:47 AM
Quote:
Originally Posted by hone
Quote:
Originally Posted by ELiTE KiLLaH
Quote:
Originally Posted by hone
Quote:
Originally Posted by ELiTE KiLLaH
cant wait for pci-x :)
What about the HyperTransport from AMD?

well yah that too
but that has to do wtih cpu/ram
this is an addin card interface with like doulbe the capability of agp i believe

im also waiting for hypertransport :)
w00t! you going to snipe an athlon 64?

lol id love to but with my current funds and financial expenses coming up (university) it looks not too well... :cry:

hone 08-19-2003 05:53 AM
true, I just bought a new mobo, some ram, and a 1700+ for 265sh so I won't be buying anything new for at lesat two years : ( But 2+ ghz of amd power should last me for a bit at least.


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