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I know when running a SLI setup you have to have 2 of the same vid card for it to work properly.....My question is does the vid card have to be the same brand...<br />
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Ex. I have a EVGA 7600GT....Could I get an XFX 7600GT and it work.<br />
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The reason I ask is because I have a friend wanting to get rid of his XFX one and wonder if I should hop on it because I can get a fairly good deal out of it.
 

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Yes it does - Has to be a 2x <b>BFG 7600GT's</b> - If they are not the same It wont work <img src="/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" /><br />
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If it is a E<i>vga 7600GT</i> and a <i>Evga 7800GT</i> I wont work - It also has to be the same model
 

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No it doesn't.<br />
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It can be a BFG and an eVGA. Whatever brands you want, as long as it is the same card. (7600GT & 7600GT, 6800GS & 6800GS, etc)
 

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As pook stated ...you can mix vendors as long as the gpu and memory are the same.
 

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Wow Thats news to me!<br />
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Really?<br />
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Cool. Owell mybad <img src="/images/smilies/tongue.gif" border="0" alt="" title="Stick Out Tongue" class="inlineimg" />
 

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Originally Posted by <strong>Mad_Handlez89</strong>

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<div style="font-style:italic">Wow Thats news to me!<br />
<br />
Really?<br />
<br />
Cool. Owell mybad <img src="/images/smilies/tongue.gif" border="0" alt="" title="Stick Out Tongue" class="inlineimg" /></div>

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Yup, they changed it with the 80.xx drivers I believe it was...or maybe it was the 79.xx...<br />
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either way, it's just gotta be the same core/memory.<br />
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you are good to go. jump on that card!
 

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It <b>does not</b> have to be the same core/memory speed, it just has to be the same gpu.<br />
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For instance,<br />
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A 6800gs (no matter the brand) + a 6800gt (no matter the brand) will not work.<br />
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A 6800gt (xfx) + a 6800gt (evga) will work.<br />
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The core and memory speeds <b>do not matter</b> as the cards will clock down to match the speed of the lower card.
 

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<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>The Pook</strong>

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<div style="font-style:italic">No it doesn't.<br />
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It can be a BFG and an eVGA. Whatever brands you want, as long as it is the same card. (7600GT & 7600GT, 6800GS & 6800GS, etc)</div>

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</div>True <img src="/images/smilies/thumb.gif" border="0" alt="" title="Thumb" class="inlineimg" /> <br />
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Also, I don't think that the Frame Buffer(s) have to be the same size (256/512)...True?
 

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In the nvidia core architecture notes, it states that ram sizes have to be identical. Also for the record sideburns, it was the 80.xx series of drivers that enabled the ability to mix and match brands. Also you can match cards that are factory overclocked with stock clocked cards as well. When enabling sli, it will downclock the faster card to match the slower (Although you can overclock both back up).
 

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Memory Sizes:<br />
<b>Can I mix and match graphics cards with different sizes of memory?</b><br />
While it is not recommended, NVIDIA does offer this flexibility using Coolbits. When purchasing a second graphics card, you should try to match the memory size so that you are ensured full value and performance from your purchase. For example, if your first card is a GeForce 6600 GT with 128MB of memory, you should purchase a second GeForce 6600 GT with 128MB of memory. However, using Coolbits (value set to 18), you can force both of the cards to use the lower of the two memory sizes and operate together in SLI mode. When dissimilar memory sizes are enabled to work together using Coolbits, the effective memory size for each card becomes the smaller of the two memory sizes.<br />
Source: <a href="http://www.slizone.com/page/slizone_faq.html#c11" target="_blank">http://www.slizone.com/page/slizone_faq.html#c11</a><br />
Just for clarification. Essentially, only the cores need to be the same. Although it doesn't apply so much now, the 7800GTX 256 and 512MB editions have slightly different chips.<br />
~Kahuna
 
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