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Connector Requirements For PCI Express Graphics Cards

How Much Power Does Your Graphics Card Need?
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The following tables show the number of the necessary connectors for the graphics card power supply. Exceptions are possible, but in general, the larger graphics cards hold to a reference design. SLI and CrossFire double the port requirements, since obviously you are using several graphics cards.

Supply Connectors Nvidia Graphics Cards
PCI Express 6-Pin
PCI Express 8-Pin
GeForce GTX 280 (1024 MB)
1
1
GeForce GTX 260 (896 MB)
2
-
GeForce 9800 GX2 (2x512 MB)
11
GeForce 9800 GTX+ (512 MB)
2
-
GeForce 9800 GTX (512 MB)
2
-
GeForce 9600 GT (1024 MB)
1
-
GeForce 9600 GT (512 MB)
1
-
GeForce 8800 GTS OC (512 MB)
1
-
GeForce 8800 GTS (512 MB)
1
-
GeForce 8800 GT (1024 MB)
1
-
GeForce 8800 GT (512 MB)
1
-
GeForce 8800 ULTRA (768 MB)
2
-
GeForce 8800 GTX (768 MB)
2
-
GeForce 8800 GTS (640 MB)
1
-
GeForce 8800 GTS (320 MB)
1
-
GeForce 8600 GTS (512 MB)
1
-
GeForce 8600 GTS (256 MB)
1-
GeForce 8600 GT (256 MB)
-
-
GeForce 8500 GT (256 MB)
-
-
GeForce 8400 GS (256 MB)
-
-
GeForce 7950 GX2 (2x512 MB)
1
-
GeForce 7950 GT (512 MB)
1
-
GeForce 7900 GTX (512 MB)
1
-
GeForce 7900 GTO (512 MB)
1
-
GeForce 7900 GT (256 MB)
1
-
GeForce 7900 GS (256 MB)
1
-
GeForce 7800 GTX (512 MB)
1
-
GeForce 7800 GTX (256 MB)
1-
GeForce 7800 GT (256 MB)
1
-
GeForce 7600 GT (256 MB)
-
-
GeForce 7600 GS (256 MB)
-
-
GeForce 7300 GT (256 MB)
-
-
GeForce 7300 GS (128 MB)
-
-
GeForce 6800 ULTRA (256 MB)
1
-
GeForce 6800 GT (256 MB)
1
-
GeForce 6600 GT (128 MB)
-
-
Supply Connectors Nvidia Graphics Cards (SLI)
PCI Express 6-Pin
PCI Express 8-Pin
GeForce GTX 280 SLI (1024 MB)
2
2
GeForce GTX 260 SLI (896 MB)
4
-
GeForce 9800 GTX SLI (512 MB)
4
-
GeForce 9600 GT SLI (1024 MB)
2
-
GeForce 8800 GTS SLI (512 MB)
2
-
GeForce 8800 GT SLI (1024 MB)
2
-
GeForce 8800 GT SLI (512 MB)
2
-
GeForce 8800 ULTRA 3SLI (768 MB)
6
-
GeForce 8800 ULTRA SLI (768 MB)
4
-
GeForce 8800 GTS SLI (320 MB)
2
-
GeForce 8600 GTS SLI (256 MB)
2
-
GeForce 8600 GT SLI (256 MB)
-
-
GeForce 7950 GX2 SLI (4x512 MB)
2
-
GeForce 7950 GT SLI (512 MB)
2
-
GeForce 7900 GT SLI (256 MB)
2
-
GeForce 7900 GS SLI (256 MB)
2
-
GeForce 7800 GTX SLI (256 MB)
2
-
GeForce 7800 GT SLI (256 MB)
2-
GeForce 7600 GT SLI (256 MB)
-
-
GeForce 7600 GS SLI (256 MB)
-
-


Supply Connectors AMD Graphics Cards
PCI Express 6-Pin
PCI Express 8-Pin
Radeon HD 4870 X2 (2x1024 MB)
1
1
Radeon HD 4870 (512 MB)
2

Radeon HD 4850 (512 MB)
1

Radeon HD 4670 (512 MB)
-
-
Radeon HD 4550 (512 MB)
-
-
Radeon HD 3870 X2 (2x512 MB)
1
1
Radeon HD 3870 (512 MB)
1
-
Radeon HD 3850 (256 MB)
1
-
Radeon HD 3650 (512 MB)
-
-
Radeon HD 3470 (256 MB)
-
-
Radeon HD 3450 (256 MB)
-
-
Radeon HD 2900 XT (512 MB)
1
1
Radeon  HD 2600 XT (512 MB)
-
-
Radeon  HD 2600 XT (256 MB)
-
-
Radeon  HD 2600 Pro (256 MB)
-
-
Radeon  HD 2400 XT (256 MB)
-
-
Radeon  HD 2400 Pro (256 MB)
-
-
Radeon  X1950 XTX (512 MB)
1
-
Radeon X1950 XT (256 MB)
1
-
Radeon  X1950 Pro (256 MB)1
-
Radeon  X1950 GT (256 MB)1
-
Radeon  X1900 XT (512 MB)
1
-
Radeon  X1900 XT (256 MB)1
-
Radeon  X1900 GT (256 MB)1
-
Radeon  X1800 XT (512 MB)
1
-
Radeon  X1800 XT (256 MB)1
-
Radeon  X1800 XL (256 MB)1
-
Radeon  X1800 GTO (256 MB)1
-
Radeon  X1650 XT (256 MB)-
-
Radeon  X1650 Pro (256 MB)-
-
Radeon  X1600 XT (256 MB)-
-
Radeon  X1600 Pro (256 MB)-
-
Radeon  X1300 XT (256 MB)-
-
Radeon  X1300 Pro (128 MB)-
-
Radeon X1300 (256 MB)-
-
Radeon X800 XT (256 MB)1
-
Supply Connectors AMD Graphics Cards (CrossFire)
PCI Express 6-Pin
PCI Express 8-Pin
Radeon HD 4870 CF (512 MB)
4
-
Radeon HD 4850 CF (512 MB)2
-
Radeon HD 3870 X2 CF (4x 512 MB)2
2
Radeon HD 3870 3CF (3x512 MB)2
1
Radeon HD 3870 CF (512 MB)2
-
Radeon HD 3850 CF (256MB)2
-
Radeon HD 3650 CF (512 MB)-
-
Radeon HD 2900 XT CF (512 MB)2
2
Radeon HD 2600 XT CF (512 MB)-
-
Radeon HD 2600 Pro (256 MB)
-
-
Radeon X1950 XTX (512 MB)
2
-
Radeon X1900 XT CF (512 MB)
2
-
Radeon X1600 XT CF (256 MB)
-
-
Radeon X1600 Pro CF (256 MB)
-
-
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