PCIE 16x, 8x or 4x?

[kel2985]

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PCIE 16x vs 8x or 4x.

mo hinay ba ang performance sa video card kong ibutang sa 8x or 4x kaysa 16x?
naa bay performance difference?

[KH0UJ]

PCIE 16x vs 8x or 4x.

mo hinay ba ang performance sa video card kong ibutang sa 8x or 4x kaysa 16x?
naa bay performance difference?

Current clocks (750/1500/1850). 75% fan


Vantage (1920x1200 performance):

16x/16x - 32698 78C/61C (top card, bottom card)
16x/4x - 30973 63C/61C
Result - 5.3% performance loss. 15C drop in temps for the top card!


Just Cause 2 - Concrete Jungle (1920x1200 max settings, 4x AA, 16x AF)

16x/16x - 72.35 fps avg 74C/59C
16x/4x - 68.28 fps avg 59C/58C
Result - 5.7% performance loss. 15C drop in temps for the top card


Mafia 2 (1920x1200, max settings, physx high)

16x/16x - 51.2 fps avg 70C/57C
16x/4x (physx set to 16x card) - 51.5 fps avg 56/55C
Result - Same fps as 16x/16x. I guess since physx is a bottleneck here, the pci-e bandwidth didn't come into play. Huge drops in temps like the other tests


Dirt 2 (1920x1200, max settings, 4x AA, 16x AF)

16x/16x - 134.8 fps avg 74C/59C
16x/4x -132.1 fps avg 61/60C
Result - 2% performance loss. Not really much of a change here. Same type of temperature decrease.

naa gyud TS gi copy/paste ra na nako sa laing site hehehe

one post counted

[Sempron Guy]

^you forgot to include the most important aspect on that benchmark

[dammy]

Current clocks (750/1500/1850). 75% fan


Vantage (1920x1200 performance):

16x/16x - 32698 78C/61C (top card, bottom card)
16x/4x - 30973 63C/61C
Result - 5.3% performance loss. 15C drop in temps for the top card!


Just Cause 2 - Concrete Jungle (1920x1200 max settings, 4x AA, 16x AF)

16x/16x - 72.35 fps avg 74C/59C
16x/4x - 68.28 fps avg 59C/58C
Result - 5.7% performance loss. 15C drop in temps for the top card


Mafia 2 (1920x1200, max settings, physx high)

16x/16x - 51.2 fps avg 70C/57C
16x/4x (physx set to 16x card) - 51.5 fps avg 56/55C
Result - Same fps as 16x/16x. I guess since physx is a bottleneck here, the pci-e bandwidth didn't come into play. Huge drops in temps like the other tests


Dirt 2 (1920x1200, max settings, 4x AA, 16x AF)

16x/16x - 134.8 fps avg 74C/59C
16x/4x -132.1 fps avg 61/60C
Result - 2% performance loss. Not really much of a change here. Same type of temperature decrease.

naa gyud TS gi copy/paste ra na nako sa laing site hehehe

one post counted

ebisaya kuno palihug... salamat.

[werty]

16 -> 8 -- minimal to non performance difference...
16 - 4 --- aw kani daku ni performance hit...

pero kung nag crossfire/sli ka samot daku performance hit... depende sa games used though...

[keropi]

4x or 16x doesnt matter if your card is a gt210..

[kel2985]

mag gtx 570 man gud ko.
naa 3 pcie slots ang mobo, then gusto nako ibutang sa ubos nga slot ang video card then 8x raman ang slot sa ubos

[Lingaw-lingaw_sa_payag]

8 or 16 almost unnoticeable if there is even a difference. Unless you run a benchmark and see the numbers itself drop a few fps.

[wreckseal]

mohinay gyud na kung ang required sa vcard kay 16x.

16x pci-e has higher bandwidth than 8x pci-e. same ra na sa 8x agp ug 2x agp nga lahi2 pud ug bandwidth.


www.technrg.com - Bandwidth Chart

[bakeke]

gamay ra deperencxa sir