Op maandag 08 juli 2002 18:16 schreef dune3002 het volgende:
[..]
das de oude versie dacht ik agp 4x is aal een tijdje maar jammer dat ze geen support voor agp 8 hebben
Ik heb een bench gezien en het verschil tussen agp 4x en 8x is minimaal. Iets van 3 fps bij quake test.
Performance diff. between 4x and 8x using Xabre 400 in 4x and 8x mode
Posted by overclocker at 11:38
We ran the Eng. board based on SIS648 chipset using a P4 2.4G at DDR333 CAS 2,2-2-5 mode. Here are our results of 3dMark2001SE Build 330. Drivers used 3.02a.02
3DMark2001SE Build 330 results
8X AGP 7382
4X AGP 7366
Quake 3 Demo 001 (800x600x32)
8X AGP 248.0fps
4X AGP 245.7fps
Looks like the 8x AGP and 4x AGP difference isn't that a big performance jump on the 3DMark2001SE Build 330. Do take note these results are based on initial beta bios and drivers. The final results should improve.
Weet iemand het verschil qua performanche bij agp pro en agp 4x?
edit..
uit een ander forum:
AGP pro means it can support the nice developer cards or whatever. Still has AGP 4x though (not sure about 8x). THe MoBo I have now has support for Pro, and I can change it to 1x,2x, or 4x
edit...
nog maar een stukkie om de layout verder te verneuken

AGP Pro is an extension of the AGP4X specification that is primarily designed to deliver additional electrical power to the graphics add-in cards. The AGP Pro definition includes an extended connector, thermal envelope, and mechanical specifications for cards, I/O brackets, and motherboard layout requirements. It is designed for professional level video cards, such as the Intergraph/3Dlabs Wildcat 4220.
AGP Pro extends the existing AGP connectors on both ends to deliver additional power on the 12 V and 3.3 V rails. AGP Pro is intended to supplement, but not replace, the existing AGP connector set. There are an additional 20 pins at the start and 28 pins at the end of the normal AGP slot.
An AGP Pro slot will accept and operate with standard AGP cards (although certain restrictions apply in the case of i845 and i850 motherboards). AGP Pro cards however, are not compatible with standard AGP4X slots.
The common AGP slot can supply up to 25 watts of power to a video card. AGP Pro introduces two additional AGP card types that can consume more than 25 watts.
Low Power AGP Pro cards that consume 25 to 50 Watts of power are classified as AGP Pro50 cards. In addition, the AGP Pro standard calls for at least one PCI slot to remain unoccupied adjacent to the AGP Pro50 card for cooling purposes.
A High Power AGP Pro card consumes 50 to 110 Watts of power, and is called an AGP Pro110 card. The standard requires at least 2 PCI slots to remain unoccupied adjacent to the AGP Pro110 card for cooling purposes.
There is no performance difference between AGP4X and AGP Pro.
There are currently no consumer level AGP Pro video cards.
en nog een stukkie:
AGP cards on i845 and i850 motherboards
Date: October 27th, 2001
Category: Video
Author(s): Andy Hui
The Intel i845 and i850 chipsets only support AGP video cards compliant with 1.5Volt signalling. All true AGP4X cards are able to operate on 1.5Volt signalling. AGP2X and AGP1X cards support 3.3Volt signalling as well as 1.5Volts. In fact, many of these older cards operate at 3.3Volts only.
Signalling AGP1X AGP2X AGP4X
3.3 Volts Yes Yes No
1.5 Volts Yes Yes Yes
Because of the lower voltage signalling, the AGP4X slot on i845 and i850 motherboards is notched so that 3.3Volt only cards cannot be inserted. A problem arises where older AGP cards exist that have the correct notch, but do not comply with 1.5Volt signalling, asking for 3.3Volts from the motherboard instead. In such cases, the video card and the motherboard can be permanently damaged.
A number of cards have been identified that have the 1.5 Volt notch, but are actually 3.3Volt cards. These are:
- some nVidia Riva TNT2 cards
- all nVidia Vanta, Vanta LT cards
- all SiS 6326, SiS 305 cards
- all S3 Savage4 cards up to, but not including revision 3.0
- all 3dfx AGP Voodoo 3, 4, and 5 boards (officially non-AGP 4x anyway)
- some nVidia GeForce2 GTS/Pro.
pffft dit is wel weer ff genoeg voor vanavond ik ga maffen
These cards will short the Vddq and VCC3.3 lines and permanently damage the i82845 Memory Controller Hub, rendering your motherboard useless.