well, yeah i do agree the board is bottlenecked at pcie 4x ...
but this board is meant for budget users anyway ..
seeing from the OCworkbench review, the performance diff was actually 'negligible' with about 2-10% diff compared to boards with pcie 16x ...
(on page 4 of the review)
http://www.ocworkbench.com/2006/asrock/775Dual-VSTA/b4.htmTest SetupVIA PT880 Pro Series * ASRock 775Dual-VSTA / VIA Hyperion 5.08A
* Intel X6800 Extreme Edition processor
* 2 x 1024 MB Corsair CMX1024A-8500C5 (total 2GB)
* ASUS EN7900GT TOP with Forceware 91.31
* Hitachi 7K80 SATAII HDD
* Windows XP SP2
Intel 975X * ASUS P5W DH Deluxe / Intel INF 8.0.1.1002
* Intel X6800 Extreme Edition processor
* 2 x 1024 MB Corsair CMX1024A-8500C5 (total 2GB)
* ASUS EN7900GT TOP with Forceware 91.31
* Hitachi 7K80 SATAII HDD
* Windows XP SP2
Intel 945P * ASRock ConRoeXFire-eSATA2 / Intel INF 8.0.1.1002
* Intel X6800 Extreme Edition processor
* 2 x 1024 MB Corsair CMX1024A-8500C5 (total 2GB)
* ASUS EN7900GT TOP with Forceware 91.31
* Hitachi 7K80 SATAII HDD
* Windows XP SP2
AMD platform * Foxconn C51XEM2AA-8EKRS2H
* AMD AM2 4000+ o/c to 2.81GHz
* 2 x 1024 MB Corsair CMX1024A-8500C5 (total 2GB)
* ASUS EN7900GT TOP with Forceware 91.31
* Hitachi 7K80 SATAII HDD
* Windows XP SP2
DOOM3 (1600x1200x32)
3DMark2005 (1024x768x32)
3DMark2006 (1280x1024x32)
Riddick (1600x1200x32)
Added on May 31, 2007, 9:51 pmhere's another review from Legit Reviews regarding this mobo's pcie 4x vs pcie 16x using XFX 7900GTX XXX card
http://www.legitreviews.com/article/377/13/This post has been edited by mmohdnor: May 31 2007, 10:11 PM