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Old 10-17-2008, 11:48 AM   #21
i_max2k2
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Video Card Comparisons
Nvidia and AMD are the major players in the graphics market. Intel is making a future effort to become the third competitor in the market however as of right now Nvidia and AMD are to be compared.

You have three main configurations for video cards:
SLI
Crossfire(CF)
Single Slot
SLI and CF are Nvidia and AMD's respective implementations of using multiple GPUs to render graphics. There are complex ways of rendering the on screen graphics but to put it simply, imagine that the processing load is split in 1/2 so that both GPUs receive an equal amount of work. A single slot configuration is a single video card however there are also single slot multi-GPU solutions.

Wait so SLI and CF can be on one card?
Yes. SLI and CF are implemented on single slot multi-GPU cards. The main cards on the market right now are the 9800GX2 from Nvidia and the 4870x2 from AMD. While it is an odd choice to not differentiate these configurations from the others, for the sake of marketing the naming scheme remains.

Is there a difference between two cards and a single card with two GPUs?
Yes but it is usually slight. The 9800GX2 from Nvidia is essentially two 9800GTX GPUs put on one PCB (printed circuit board). Each GPU has its own die and a bridge is used to connect them. It is similar to how Intel uses the MCM to bridge between its processor dies. With the 9800GX2 the performance is on par with two 9800GTXs because there is next to no difference in implementation. While they look vastly different they are both labeled as SLI 9800GTX multi-GPU solutions.

Dont know why nobody noticed, 9800gx2 is dual gpu dual pcb card, 4870x2 is dual gpu single pcb card.
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Old 10-17-2008, 11:54 AM   #22
ocgmj
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Very awesome learned a lot!
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Old 10-17-2008, 12:46 PM   #23
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Originally Posted by i_max2k2 View Post
Dont know why nobody noticed, 9800gx2 is dual gpu dual pcb card, 4870x2 is dual gpu single pcb card.
There is a lot of proofread so missing things happens. It was meant to state that it is two GPUs on one card.
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Old 10-21-2008, 11:47 AM   #24
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Originally Posted by gunbo13 View Post
There is a lot of proofread so missing things happens. It was meant to state that it is two GPUs on one card.
I dint mean to sound rude, its a awesome guide, just wanted to make it better!
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Old 10-21-2008, 11:53 AM   #25
BabyGorilla
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Very generic (not derogetory), very good guide. Yet anoter brilliant, likely stickied post that nobody will read!
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Old 12-25-2008, 05:50 PM   #26
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Thanks very helpful
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Old 12-27-2008, 06:08 AM   #27
TDOGZZ
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Good info guide Gunbo13 !
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Old 12-27-2008, 06:45 AM   #28
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Wow, I've just read this today, awesome guide!! Thanks, gunbo!
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Old 02-23-2009, 12:51 AM   #29
MegapowerXXL
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I'm new to the hardware side of life and found your guide to be very easy to read and understand. I learned a lot from it and wish I read it when I was shopping for a new graphics card! Eager to read more of your work.
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Old 02-23-2009, 06:33 AM   #30
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Originally Posted by MegapowerXXL View Post
I'm new to the hardware side of life and found your guide to be very easy to read and understand. I learned a lot from it and wish I read it when I was shopping for a new graphics card! Eager to read more of your work.
Well. we live and learn, don't we? I remember thinking that more MB = more pwnz0rz video card, boy was I stupid
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Old 04-27-2011, 09:34 PM   #31
NossedEvo
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Still being read and your work is still being appreciated.
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Old 05-26-2011, 09:33 PM   #32
k3ithyb0y
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Thanks heaps. This is the first time GFX card info has made sense to me. I didn't get the difference between the GPU and the ram until now. Lol. Thanks
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