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G5 & Mac Pro PCI Express Video Cards

G5 & Mac Pro PCI Express Video Cards

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*PCI Express slots are not compatible with PCI or PCI-X expansion cards.

How do I know if what slot I have?

PCI -- Also annoyingly called "Conventional PCI" (like there's an unconventional version?). This is good old 32 and 64 bit PCI that you've come to know and love. The PCI spec has been undergoing a significant set of changes over the years to try to keep pace with speed and system advances. One thing you probably haven't noticed (and don't care about unless you're a hardware guy) is a change from 5V signalling to 3.3V. The spec to which vendors are implementing now is PCI V2.2; There are a PCI V2.3 and PCI V3.0 already defined. Are you asleep yet?

PCI-X -- The PCI SIG likes to call this "High performance, backward compatible PCI for the future" which just means that the PCI SIG is not lacking marketing people. PCI-X uses all the same connectors and stuff as "conventional" PCI. The transfer speed is indicated by the goofy moniker added to the end, as in "PCI-X 66" (which supports a 66MHZ clock rate) or "PCI-X 133" (which supports a 133Mhz clock rate). Because the data is transfered in parallel, either 32 or 64 bits at a time (or even 16 bits at a time, don't ask), this means that PCI-X 133 offers a bandwidth of 1.0GB/second, and PCI-X 533 could offer a bandwidth of 4.3GB/second. That's all theoretical, of course. If anybody ever builds a system that supports PCI-X 533, drop me a line, OK?

PCI Express -- This is an entirely new bus architecture, previously known by the name "3GIO." It's got new connectors and everything. It even defines a new PC Card (PCMCIA) standard called Express Card. How different is PCI Express from stuff that came befor it? Well, for one thing, it performs serial data transfers and it starts with a base transfer rate of 2.5Gb/second. Data is transfered in packets, and effectively routed via a switch. Transfers are bi-directional, so data can flow to and from a device simultaneously. Since data is switched, more than 1 device can be transfering at the same time.

What's even more fun about PCI Express is that cards can utilize as many as 16 transfers in parallel, thus providing (are you ready for this??) up to 8GB/second total throughput (4GB/second in each direction). These parallelized serial transfers are what are referred to as "PCI Express x8" (pronounced "by eight", by the way) for 8 parallel bit streams or "PCI Express x16" for 16 parallel bit streams. And, here's some cool news: AGP is being replaced with x16 PCI Express connections.

How to identify compatible Video cards for Power Mac G5, Mac Pro?

Power Mac G5 nVidia 128MB GDDR SDRAM 6600LE PCI Express Video Card (p/n 1002844)
PowerMac G5 NVIDIA GeForce 6600 256MB VRAM, (PCI-Express) Video Card (p/n 1001375)
PowerMac G5 NVIDIA GeForce 6600 256MB VRAM, (PCI-Express) Video Card (p/n 1001390)
Power Mac nVidia 256MB GeForce 7800 GT (PCI Express) Video Card (p/n 1001487)
Power Mac nVidia 256MB GeForce 7800 GT (PCI Express) Video Card (p/n 1001823)
MacPro nVidia GeForce 7300 GT 256MB GDDR (DVI/DVI) (PCI-Express) Video Card (p/n 1001821)
MacPro nVidia GeForce 7300 GT 256MB GDDR (DVI/DVI) (PCI-Express) Video Card (p/n 1001822) - Limited Supply!
Power Mac G5 ATI Radeon X1900 GT (256MB) (DVI/DVI/S-Video) PCI Express RoHS Video Card (Green Friendly) (p/n 1003814)
Power Mac G5 nVidia 512MB Quadro FX 4500 (PCI Express) Video Card (p/n 1001581)
Power Mac G5 nVidia 512MB Quadro FX 4500 (PCI Express) Video Card (p/n 1003802)
MacPro 512MB nVidia Quadro FX 4500 DVI/DVI (PCI Express) (Intel Mac Pro) Video Card (p/n 1005010)
MacPro ATI Radeon X1900 XT 512MB Ver. 2 (DVI/DVI) (PCI Express) Video Card (p/n 1003648)
MacPro ATI Radeon X1900 XT 512MB Ver. 2 (DVI/DVI) (PCI Express) Video Card (p/n 1007686)
MacPro ATI Radeon X1900 XT 512MB (DVI/DVI) Ver. 1 (PCI Express) Video Card (p/n 1004866)
Mac Pro ATI Radeon HD 2600 XT Graphics 256MB GDDR3 (DVI/DVI) (PCI Express 2.0 x16) Video Card (p/n 1007990)
Mac Pro ATI Radeon HD 2600 XT Graphics 256MB GDDR3 (DVI/DVI) (PCI Express 2.0 x16) Video Card (p/n 1004638)
MacPro (Early 2008) Nvidia Geforce 8800GT 512MB (DVI/DVI) Video Card (p/n 1006923)
Mac Pro (Early 2008) Nvidia Geforce 8800GT 512MB (DVI/DVI) Video Card (p/n 1007756)
MacPro Nvidia GeForce 8800GT 512MB GDDR3 (DVI/DVI) (PCI-Express) Video Card (p/n 1006035)
MacPro Nvidia GeForce 8800GT 512MB GDDR3 (DVI/DVI) (PCI-Express) Video Card (p/n 1008620)
Mac Pro ATI Radeon HD 4870 512MB of GDDR5 Memory (One Mini DisplayPort and One Dual-Link DVI Port) PCI Express 2.0 Video Card (p/n 1007607)
Mac Pro ATI Radeon HD 4870 512MB of GDDR5 Memory (One Mini DisplayPort and One Dual-Link DVI Port) PCI Express 2.0 Video Card (p/n 1009272)
Mac Pro NVIDIA EVGA GeForce GTX 285 1GB GDDR3 Memory (Two Dual-Link DVI) PCI Express 2.0 Video Card (p/n 1007608)
Mac Pro (Early 2009) nVidia GeForce GT 120 512MB Video Card (p/n 1008199)
Mac Pro (Early 2009) nVidia GeForce GT 120 512MB Video Card (p/n 1007622)
Mac Pro ATI Radeon HD 5770 1GB (PCI Express 2.0) 2 x DVI-I (dual link) Video CardMac Pro ATI Radeon HD 5770 1GB (PCI Express 2.0) 2 x DVI-I (dual link) Video Card (p/n 1008258)
Mac Pro ATI Radeon HD 5770 1GB (PCI Express 2.0) 2 x DVI-I (dual link) Video Card (p/n 1011816)
ATI Radeon HD 5870 Graphics Upgrade Kit for Mac Pro (Mid 2010/Early 2009) (p/n 1008591)
ATI Radeon HD 5870 Graphics Upgrade Kit for Mac Pro (Mid 2010/Early 2009) (p/n 1009080)
Apple Mac Pro (Early 2008) NVIDIA Quadro FX 5600 1.5GB (DVI/DVI) PCI-Express Video Card (p/n 1009209)
Mac Quadro 4000 nVidia 2GB (DVI/ DisplayPort) PCI Express Video Card (p/n 1009193)
Mac Quadro 4000 nVidia 2GB (DVI/ DisplayPort) PCI Express Video Card (p/n 1010369)
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