just to know the difference between AGP & PCIe video adapter

March 7, 2012 at 17:34:48
Specs: Windows 7, i3/ 4 gigs
what's the difference between PCIe and AGP video adapter computers

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#1
March 7, 2012 at 19:13:17

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#2
March 7, 2012 at 20:38:21
Read above for exact details, but basically the AGP was the older graphics card interface and it was better than a basic PCI slot for your video card. PCIe, especially PCIe 2.0 and later 16x varieties support a wider band width and therefore much better graphics. PCIe 3.0 standard is on the verge of being released so for the next generation of intensive gaming graphics, the 'pipeline' will be wide open (though most may never need it).

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#3
March 7, 2012 at 23:01:28
A few other differences:

-AGP is a parallel bus; PCIe is serial.
-An AGP 8x slot can send 2.1GB/s downstream; a PCIe 2.0 x16 slot has 8GB/s of downstream bandwidth.
-AGP has horrible upstream bandwidth: only 133MB/s (the same as a standard PCI slot). This makes AGP quite bad for OpenCL/CUDA/GPGPU applications. A PCIe 2.0 x16 slot has just as much upstream bandwidth as it has downstream: 8GB/s

If you're looking for a video card for your Core i3 system, you'll need a PCIe card.

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