Nelamurire setari laptop

add_1981 Offline

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« on: 18 August 2009, 21:34 »

Un prieten de-al meu si-a luat un ACER si are cateva nelamuriri legate de frecventa la care lucreaza placa video.
A instalat Everest-ul si a facut un screen.

De ce e GPU clock = 220MHz si apoi (original 680MHz) ? Pana la urma cu cat merge? 220 sau 680?

Mai jos, la Memory Bus Properties,
Real Clock = 250MHz (original 500Mhz)
Effective Clock = 500Mhz
250 sau 500 ?

Eu nu am stiut sa-i raspund asa ca

...
Multumesc .


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Chipicao Offline

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« Reply #1 on: 18 August 2009, 22:34 »

Placa video probabil isi scade automat frecventa atunci cand nu e folosita (consum redus, autonomie mai mare). Ca sa se convinga poate sa verifice cu everest in timp ce ruleaza o aplicatie 3d (un joc in mod windowed spre exemplu).

Memoria are frecventa reala 250Mhz insa fiind DDR2 frecventa bus-ului este dubla
http://en.wikipedia.org/wiki/DDR2_SDRAM#Specification_standards


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adilehanceanu Offline

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« Reply #2 on: 18 August 2009, 22:55 »

Aparent şi memoria are frecvenţa coborîtă în mod 2 D (chestia aia cu original 500 MHz).


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Chipicao Offline

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« Reply #3 on: 18 August 2009, 23:26 »

Adica in mod 2D are 250Mhz real si 500Mhz effective iar in mod 3D are 500 cu 1000?


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adilehanceanu Offline

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« Reply #4 on: 19 August 2009, 10:35 »

Da, aşa ar rezulta din ce zice programu' ăla


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add_1981 Offline

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« Reply #5 on: 19 August 2009, 12:03 »

multumesc pt lamuriri.
revin cu screen-uri.


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