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ATi Radeon HD 3850 & 3870 Single / CF / CFx, OC discussion thread~
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QiW
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Mar 19 2008, 07:42 AM
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QUOTE(aLWAYStHEsAME @ Mar 18 2008, 07:35 PM) @QiW I think it's not normal bro, i saw the other user got 18k+ for 3870 CF ya .. i know its not normal .. i think the drivers are all screwed up at the time being for certain OC versions of the 3870 .. for the time being .. i had gotten another 8800gt top and using it without probs laa so far .. wait another 3 months or so then maybe jump back onto the ATi wagon .. hopefully by then the 3870 or X2 would have dropped more in price .. hahaahahaa have X2 in mind but the card covers 4 of my 6 SATA ports .. so that will have to get L connectors as well if going the X2 way This post has been edited by QiW: Mar 19 2008, 07:43 AM
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syazone
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Mar 19 2008, 11:21 PM
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any comment on colorful 3870?
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TSirenic
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Mar 22 2008, 09:18 AM
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i just wonder 2x 3870 CF or 3870x2 is better?
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ah_khoo
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Mar 22 2008, 09:32 AM
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- No Action Talk Only -
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QUOTE(irenic @ Mar 22 2008, 09:18 AM) i just wonder 2x 3870 CF or 3870x2 is better? older batch of d x2 used 8x link, so if cf 3870 on both x16 lane boards, theoretically d latter should be faster imo.
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TSirenic
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Mar 22 2008, 09:36 AM
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do u mean amd will releae a new 3870x2 with x16 link?
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ah_khoo
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Mar 22 2008, 09:46 AM
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- No Action Talk Only -
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QUOTE(irenic @ Mar 22 2008, 09:36 AM) do u mean amd will releae a new 3870x2 with x16 link? from i read yes... read it somewhere vr-zone iirc.
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TSirenic
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Mar 22 2008, 09:48 AM
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ic.. that means currently 3870cf @ 2x 8x pci-e lanes has same performance wih 3870x2..
but 3870x2 has advantage if user wanna go more than dual core .. cfx.
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ah_khoo
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Mar 22 2008, 09:58 AM
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- No Action Talk Only -
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QUOTE(irenic @ Mar 22 2008, 09:48 AM) ic.. that means currently 3870cf @ 2x 8x pci-e lanes has same performance wih 3870x2.. but 3870x2 has advantage if user wanna go more than dual core .. cfx. most of d review doesn't compared clock to clock, so they mite be bias. do note that there are diff in core clock & mem speed for both, some more 3870cf is of dd4, d x2 uses ddr3 only. unless there are users with both 3870 x2 and 2 x 3870 do comparison clock to clock w/ same bandwidth as well (cf @ 8x), else it's kinda hard to judge which is faster.
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mizivincible
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Mar 22 2008, 04:30 PM
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QUOTE(irenic @ Mar 22 2008, 09:48 AM) ic.. that means currently 3870cf @ 2x 8x pci-e lanes has same performance wih 3870x2.. but 3870x2 has advantage if user wanna go more than dual core .. cfx. I saw somewhere given link by a forummer, 3870x2 run slightly faster than crossfire 3870. And using 3870x2 gets more advantage due to less heat and power consumption. I guess so
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flatfinger
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Mar 22 2008, 08:07 PM
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QUOTE(irenic @ Mar 22 2008, 09:18 AM) i just wonder 2x 3870 CF or 3870x2 is better? this is the best latest review that i could found...thx to sniper actually....focus on this 2 card; ASUS EAH3870 X2-1GB n AMD 3870 Crossfire......in 3dmark u can see the x2 slightly better than the xfire...but in game performance show the different although the conclusion recommended x2...the xfire do much better actually in HD.... The review linkQUOTE(ah_khoo @ Mar 22 2008, 09:58 AM) most of d review doesn't compared clock to clock, so they mite be bias. do note that there are diff in core clock & mem speed for both, some more 3870cf is of dd4, d x2 uses ddr3 only. unless there are users with both 3870 x2 and 2 x 3870 do comparison clock to clock w/ same bandwidth as well (cf @ 8x), else it's kinda hard to judge which is faster.  ya..agree with u...most of the review comparing them with different clock...if same clock...i do have a sense of xfire can do more better...dont know la This post has been edited by flatfinger: Mar 22 2008, 08:37 PM
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TSirenic
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Mar 23 2008, 03:17 PM
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i ran 3870 cf on my p35t dq6 and the score is not as good as running cf on x38 dq6.. the difference is around 500 points in 3dmark06.. not sure how big is the difference in real gaming..
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LExus65
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Mar 23 2008, 03:22 PM
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shoul cut donw a frame or 2 at most at minimal, but at average still will be quite ok not noticeble..... the bottleneck mainly on the data transfer between cards only.
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Ryoga
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Mar 23 2008, 04:54 PM
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Getting Started

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thx  i just found out that my 1st pcie slot with x16 mode and 2nd pcie slot with x4 or x1 mode
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DevilMan
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Mar 23 2008, 06:17 PM
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TSirenic
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Mar 23 2008, 06:35 PM
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i also love to try x2.. but i've a 9600gt or possibly 9800gx2 coming up.. hopefully..
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DevilMan
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Mar 23 2008, 06:38 PM
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QUOTE(irenic @ Mar 23 2008, 06:35 PM) i also love to try x2.. but i've a 9600gt or possibly 9800gx2 coming up.. hopefully.. well i try x2 3870 u try 9800gx2. and we compare
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DevilMan
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Mar 23 2008, 06:41 PM
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QUOTE(Ryoga @ Mar 23 2008, 06:40 PM)  if i run cf with my mobo with 2nd pcie slot 4x speed isit better dun cf or wad  recommended to run at least 8x 8x. mine is not bad. i dont see any real difference wiith my old mobo 16x 16x (790fx).
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