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Old 12-09-2004, 12:20 AM   #1 (permalink)
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Default AGP 8X Video cards

I have 8x AGP Card but I have it in a mother board taht supports AGP4x. now its been working for months now. but does it affect anything like playing games???? oir anything else
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Old 12-09-2004, 12:22 AM   #2 (permalink)
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very few graphics cards will bottlenech with 4x agp. so no u shoodnt worry.

zimon
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Old 12-09-2004, 12:28 AM   #3 (permalink)
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can i ask what is the difference between the 2. is 8xagp just faster? and thats it
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Old 12-09-2004, 12:46 AM   #4 (permalink)
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yes, AGP 8X (as multipler shows) should have to be twice as fast as AGP 4X. its actually not, its just ~10-40% performance increase. where it was expected to be 100%.

for your convinience, i'll describe all AGP standards on 32-BIT architecture.

PCI was 33Mhz @ 32-BIT register and has the data tansfer rate of 133MB/s

AGP was clocked @ 66Mhz with trasnfer rate of twice as of PCI, so 266MB/s

AGP2X =clock rate = 133Mhz, DTR= 532MB/s (Roughly) as it has capability to read on both rising and falling edges of signals.

AGP 4X = 266X4 = 1064MB/s (or ~ 1GB/s), clock rated at 266Mhz

AGP 8X = 266X8 ~ 2GB/s , clock rated at 533Mhz

and so does PCI-E = 16X ~ 1Ghz Clock rate and DTR ~ 4.15Gb/s

~ means not equal, but equalivent.

theoritically AGP8X was suppose to be twice as fast as AGP4X, but it isnt.
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Old 12-09-2004, 01:13 AM   #5 (permalink)
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thanks for showing me that. appreciate it. not that i dont trust the other guy who posted to me response which i appreciate, but i know you have helped me alot in here when i come in arrow. if i put a agp8x card in a agp4x slot it wont make the video card incompatible with games or be any more unstable or affect anything right?
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Old 12-09-2004, 01:14 AM   #6 (permalink)
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becaues im having so much trouble with this game im trying to play. and my brother's comp has a agp8x card and i was going to put it in mine and try to see if the game will load
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Old 12-09-2004, 01:20 AM   #7 (permalink)
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it will work perfectly, I have used AGP8X cards into AGP4X motherboards many many times. and never showed any problem.
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Old 12-09-2004, 02:15 AM   #8 (permalink)
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same its always fine

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