 The Geforce GT 650M of the Retina MacBook Pro gets only PCI-Express 8x, 22/06/2012 - Your reactions |
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 Jun 21 2012, 10:47 PM
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 Belgian Foundry  Group: Moderators Posts: 1,622 Joined: 31-March 10 From: Belgium, France, USA, Netherlands Member No.: 12,632  |
We keep discovering more things about the new Retina MacBook Pro. We noticed this:
 As you can see on the 4th line, the Geforce GT 650M is connected through only a PCI-Express 8x link while it is usually 16x for graphics solutions. There is however an explanation. While it is not said explicitly, the PCI here is PCI-Express 3.0 8x, which has the same bandwidth as the PCI-Express 2.0 16x. Ivy Bridge processors have PCI-Express 3.0 links and the GeForce card is also compatible with this new interface. It would have been useless to put PCI-Express 3.0 16x since we are still not reaching the limit of the bandwidth with this type of graphics card. By Machmeter, original by Lionel |
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