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Last response: in Graphics & Displays
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May 15, 2010 11:50:19 PM

guys sorry for the question but i am not sure...

anyways, i have 4870 visiontek 512mb card i want to add 4870 but i have a deal for cheap 4870 1gb asus card
question is can i do crossfire like that even whem my motherboard says hybrid crossfire..
thank you guys

More about : noob question

a c 376 U Graphics card
May 15, 2010 11:58:08 PM

Hybrid crossfire is crossfiring with the onboard graphic and it is mostly useless outside of perhaps laptops. To crossfire HD4870s you will need a fully crossfire capable motherboard that has 2 PCIEx16 slots. Some motherboards that claim to be crossfire and have two slots have the second slot actually function at x4 speeds which severely limits the advantages of a second card. So it is only a good idea if you have 2 slots and they both function at at least x8. When using 2 cards with a different amount of memory they with both function with the lower amount of memory(512mb in this case.)
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May 16, 2010 1:08:06 AM

jyjjy said:
Hybrid crossfire is crossfiring with the onboard graphic and it is mostly useless outside of perhaps laptops. To crossfire HD4870s you will need a fully crossfire capable motherboard that has 2 PCIEx16 slots. Some motherboards that claim to be crossfire and have two slots have the second slot actually function at x4 speeds which severely limits the advantages of a second card. So it is only a good idea if you have 2 slots and they both function at at least x8. When using 2 cards with a different amount of memory they with both function with the lower amount of memory(512mb in this case.)



i have 2 crossfire slots.. and one is x16 other is x8 so if i connect second they both will work as x8 i know that, but like i said is 512 mb and 1 gb difference is an issue?
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a c 376 U Graphics card
May 16, 2010 4:04:05 AM

No, it's not a big issue, you just wont use the extra memory on the 1gb card. It would be the same as crossfiring two with 512mb.
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a b U Graphics card
May 16, 2010 4:16:07 AM

+1.
To OP:
By the way, the 4870 is pretty good card. What do you need to crossfire it for? 1920x1080 resolution?
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May 16, 2010 11:22:21 AM

randomkid said:
+1.
To OP:
By the way, the 4870 is pretty good card. What do you need to crossfire it for? 1920x1080 resolution?



yup.. i have 27'' HP + 22'' Hannspree i am more musician, but sometimes playing games when i am bored ;]]]
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a b U Graphics card
May 16, 2010 1:18:55 PM

_orbital_ said:
yup.. i have 27'' HP + 22'' Hannspree i am more musician, but sometimes playing games when i am bored ;]]]

Good for you. Enjoy your HD4870 crossfire. :) 
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May 26, 2010 12:03:27 AM

i bought 5850 so i hope made a right decision..
4870 CF i think would be too much on power consumption
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May 26, 2010 12:05:10 AM

Best answer selected by _orbital_.
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