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Old 07-07-09   #1631 (permalink)
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I thought the different clocks and memory was true also... but I checked the ATI site and came up with this:

Quote:
5. What happens when graphics cards with varying memory speeds and engine clocks are paired together?

A. In this scenario, overall performance will be adjusted to match the memory speeds and engine clocks of the lower clocked card. To obtain ideal performance, graphics cards should be paired correctly.
Source: http://ati.amd.com/technology/crossfire/faq.html

Granted, they haven't updated some of the crossfire stuff since the 4890 came out. Did this change?
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Everyone, I have an urgent announcement to make: [PWN]Schubie is tricky.
Usually,
4650<3850<4670<3870<4770<4830<3870X2<4850<5770<487 0<4890<4770 CF<4850X2<4850 CF<5850<5870<5770 CF<4870X2<4870 CF<4890 CF<5850 CF<5970<5870 CF
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Originally Posted by G|F.E.A.D|Killa View Post
when its game time i tell my mom im going to go kill hookers and steal cars and kill cops... she says ok.

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Old 07-07-09   #1632 (permalink)
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Count me in!

After i bought my 3870 i will never go back to nVidia.
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Old 07-07-09   #1633 (permalink)
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Quote:
Originally Posted by xxbassplayerxx View Post
I thought the different clocks and memory was true also... but I checked the ATI site and came up with this:



Source: http://ati.amd.com/technology/crossfire/faq.html

Granted, they haven't updated some of the crossfire stuff since the 4890 came out. Did this change?
Why don't you test it.

You're using CFX, clock both your cores to 850 and run a quick benchmark, run the bench again with 1 core at 850 and the other at 950, note any performance gains. Do the same with the memory.

I know when I ran CFX 4870/4850 I could oc either card and see an improvement.

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Old 07-07-09   #1634 (permalink)
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Sign me up!
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Just Upgraded From a GTS 250 And Bought Sapphire 4890 TOXIC and i am in love
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Count me in!

After i bought my 3870 i will never go back to nVidia.

That's not what most people said

Either way, Welcome to the club everyone! List updated!
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Old 07-07-09   #1635 (permalink)
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Quote:
Originally Posted by grunion View Post
Why don't you test it.

You're using CFX, clock both your cores to 850 and run a quick benchmark, run the bench again with 1 core at 850 and the other at 950, note any performance gains. Do the same with the memory.

I know when I ran CFX 4870/4850 I could oc either card and see an improvement.
Once my Toxic arrives I'll do just that.
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Usually,
4650<3850<4670<3870<4770<4830<3870X2<4850<5770<487 0<4890<4770 CF<4850X2<4850 CF<5850<5870<5770 CF<4870X2<4870 CF<4890 CF<5850 CF<5970<5870 CF
Quote:
Originally Posted by G|F.E.A.D|Killa View Post
when its game time i tell my mom im going to go kill hookers and steal cars and kill cops... she says ok.

System: Miki <3
CPU
i7 920 @ 4.3GHz HT on		 Motherboard
Gigabyte GA-EX58-UD4P		 Memory
6GB OCZ Platinum 1600MHz 		Graphics Card
Diamond XOC & Toxic 4890s
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WD Cavair 500GB & WD Black 1TB		 Sound Card
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Old 07-07-09   #1636 (permalink)
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Quote:
Originally Posted by spidermohmd1 View Post
Just Upgraded From a GTS 250 And Bought Sapphire 4890 TOXIC and i am in love



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Old 07-07-09   #1637 (permalink)
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Does increasive the memory clock on the 4890 from 1000Mhz to 1100 actually make any difference?
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Old 07-07-09   #1638 (permalink)
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Just got a new 4890 from sapphire hopefuly it wil be an improvement over my 4850 x2!

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Old 07-07-09   #1639 (permalink)
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Quote:
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Does increasive the memory clock on the 4890 from 1000Mhz to 1100 actually make any difference?
Not really. Being 256bit/GDDR5 they are not bandwidth starved. Nor do they need the extra, it helps a little bit on 1920x1xxx res +. But only by a few FPS.
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Old 07-07-09   #1640 (permalink)
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who's ur dady now

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