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post #1631 of 4491
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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post #1632 of 4491
Count me in!

After i bought my 3870 i will never go back to nVidia.
    
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post #1633 of 4491
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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post #1634 of 4491
Thread Starter 
Quote:
Originally Posted by Hancor View Post
Sign me up!
Hancor with (2) CrossFireX XFX Radeon 4870 1GB
Quote:
Originally Posted by spidermohmd1 View Post
Just Upgraded From a GTS 250 And Bought Sapphire 4890 TOXIC and i am in love
Quote:
Originally Posted by Higgins View Post
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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post #1635 of 4491
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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post #1636 of 4491
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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post #1637 of 4491
Does increasive the memory clock on the 4890 from 1000Mhz to 1100 actually make any difference?
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post #1638 of 4491
Just got a new 4890 from sapphire hopefuly it wil be an improvement over my 4850 x2!
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post #1639 of 4491
Thread Starter 
Quote:
Originally Posted by The_Rocker View Post
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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post #1640 of 4491
who's ur dady now

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