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16th December 2008, 18:34 | #1 | Link |
Somewhere Back in Time
Join Date: Jul 2008
Location: Hungary
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PCI-E x16 2.0 Slot (CFX x8)
Hi!, I'm building a PC.
I found this motherboard Biostar Tpower I45. It has 2 PCI-E x16 2.0 (CFX x8) Slots. Does this mean that if I have one graphics card it will be using x16 and if there are 2 graphics cards they share and each get x8? Currently I'm planning to buy a PowerColor PCS+ HD4870 512MB. I do play many games on high resolution so in the future I might buy another card and run them in CrossFire. Would x8 be enough for this? Graphics card: http://www.powercolor.com/Global/pro...ProductID=2256 Mobo: http://www.biostar.com.tw/app/en-us/...t.php?S_ID=365 |
16th December 2008, 20:34 | #2 | Link | |
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17th December 2008, 01:53 | #3 | Link |
Somewhere Back in Time
Join Date: Jul 2008
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But then what is the point of 2 pci-e x16 slots, if they can't run 2 graphics cards properly at the same time?
In the motherboard specifications it does say "Support AMD CrossFire X Technology". Last edited by Ma-Xell; 1st July 2014 at 15:48. Reason: spelling |
17th December 2008, 02:51 | #4 | Link | |
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If you really intend to use CrossFire, get a board that connects it's two PCIe-x16-Slot with 16 lanes per slot (32 lanes in total). Not just 16 lanes shared by two slots.
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17th December 2008, 05:16 | #5 | Link |
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pci-e 2.0 8x8 is sufficient for current video card generation. generally speaking, you will not see much, if any, difference between x8 and x16 mode for pci-e 2.0.
for games, not all games support cross-fire/sli. even supported, the percent of increase in performance is still a variable. if your games scale in crossfire very well, crossfire is an option. |
17th December 2008, 12:14 | #7 | Link |
Somewhere Back in Time
Join Date: Jul 2008
Location: Hungary
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Does anyone know a good and cheap motherboard which has 2 x16 x16 PCI-E slots (ATi CrossFire), cpu socket 775, ATX formfactor, DDR2 up 1200Mhz ram?
maybe: Gigabyte GA-X48-DS4 NewEGG INFO Last edited by Ma-Xell; 17th December 2008 at 19:56. |
17th December 2008, 15:34 | #8 | Link |
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ga- x48 is not really a cheap board.
anyway, if you want pci-e 2.0 x16 + x16, then it is a good board to get.. otherwise, any boards with P45 that support x8 + x8 mode is good enough for average user in performance level, pci-e 2.0 x8 = pci-e 1.0 x16. last thing, 4870 is nothing special. it belongs to current generation. |
17th December 2008, 16:45 | #9 | Link |
Skittle
Join Date: Mar 2008
Posts: 539
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Tomshardware just did an article about crossfire scaling across different motherboards with 2 4870's. P45 looks like a very good option.
http://www.tomshardware.com/reviews/...ress,2095.html |
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