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[Official] 1440p and Above Gaming Club (1440p+) - Page 274

post #2731 of 6172
Displayport 1.2 21.6Gbit (720 MHz pixel clock)
post #2732 of 6172
Quote:
Originally Posted by kakee View Post

Displayport 1.2 21.6Gbit (720 MHz pixel clock)

Nope. 540MHz. You might want to check your facts.
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post #2733 of 6172
change my GPU, it's a 680 4GB now. The bandwidth just weren't cutting it on the 660 ti. So yea.

     
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post #2734 of 6172
Quote:
Originally Posted by zinfinion View Post

Nope. 540MHz. You might want to check your facts.

Sure. Link?
post #2735 of 6172
Quote:
Originally Posted by kakee View Post

Sure. Link?

Wikipedia.
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post #2736 of 6172
Good job Zinfinion +rep
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post #2737 of 6172
Quote:
Originally Posted by zinfinion View Post

Wikipedia.
Worst source if you don't have others to back it up however you seem to be correct on this one thumb.gif
Good job
post #2738 of 6172
Quote:
Originally Posted by zinfinion View Post

Wikipedia.

Oh yes boxing3.gif
Quote:
The most significant improvement of the new version (1.2) is the doubling of the effective bandwidth to 17.28 Gbit/s
1 Mbit/s or 720 Mbit/s for the auxiliary channel.
post #2739 of 6172
What is a good graphics card to power such a resolution? I don't have to max out settings necessarily, but if I can get a card at $300 that will do the trick then great. If not, then recommend what I will NEED. Thanks.
post #2740 of 6172
Quote:
Originally Posted by kakee View Post

Oh yes boxing3.gif

The AUX channel is not the droid you are looking for. Good try though. rolleyes.gif And if it is the 17.28 Gbit/s you were pointing out, divide by .04 and then multiply by 1.25 to account for the 10b overhead. Kaboom, 540 MHz.

Quote:
Originally Posted by maarten12100 View Post

Worst source if you don't have others to back it up however you seem to be correct on this one thumb.gif
Good job

My phaser got stuck on snark again. doh.gif

http://www.vesa.org/wp-content/uploads/2010/12/DisplayPort-DevCon-Presentation-DP-1.2-Dec-2010-rev-2b.pdf

For the curious, DVI, and HDMI work in multiples of 3, 1 wire each for R, G, and B, and a forth clock wire. (It's more technical than that, but that's the gist of it.)

DP uses a packet protocol in lanes of 1, 2, or 4, with the max bandwidth using 4 lanes.


Divide DVI or HDMI bandwidth by .03 and you get the pixel clock.

DVI-D = 4.95 Gbit (165 MHz)
DVI-D Dual Link = 9.9 Gbit (330 MHz)

HDMI
v1.0/1.1/1.2 = 4.95 Gbit (165 MHz)
v1.3/1.4/1.4a = 10.2 Gbit (340 MHz)


Divide DP by .04 and you get the pixel clock.

DisplayPort
v1.0/1.1 = 10.8 Gbit (270 MHz)
v1.2 = 21.6 Gbit (540 MHz)


What happens if you incorrectly divide by .03? Surprise, 360 and 720MHz pixel clocks. Maths r hard. nerdsmiley.png
Edited by zinfinion - 2/20/13 at 10:56am
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