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So I see alot of people using the UD4P... whats the difference between that and the UD5P? and which chip set is best?

A little info about me;
I will be crossfiring 2 4850's
This board will be paired with a 955 BE and 4gigs of DDR3

Thank you in advance
 

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Quote:


Originally Posted by shadow_419
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The UD5P has x16/x16 crossfire the UD4P only allows x8/x8
UD5P also has more sata ports, dual lan, and better chipset cooling

Argh beat me to it!


Have a look here on the Gigabyte website to compare the boards.
 

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I am currently using the GA-MA790FX UD5P. It is AM2+ with the f4 bios and supports ddr2 ram that you can oc to 1333. With the f5 bios update you can run AM3 chips but not ddr3 ram. Which has no significant benefit for AMD chips anyway. It also has Crossfirex support at full 16x . Excellent cooling and overclocking potential. Just starting to play with the bios features now.
LL
LL
LL
 

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Remember that these boards use 2 entirely different chipsets. The UD5P uses the 790FX chipset which is the top of the line chipset. The UD4P uses the 790X chipset. The UD5P will be the better of the two in all aspects.

Quote:
790FX

* Codenamed RD790, final name revealed to be "AMD 790FX chipset" [9]
* Dual-socket (Quad FX, Dual Socket Direct Connect (DSDC) Architecture) or single AMD processor configuration
* Maximum four physical PCI-E x16 slots and discrete PCI-E x4 slot [10], the chipset provides a total of 42 lanes solely in the Northbridge
* HyperTransport 3.0 with support for HTX slots [10] and PCI Express 2.0
* ATI CrossFire X
* AutoXpress
* AMD OverDrive
* Energy efficient Northbridge design
o 65 nm CMOS fabrication process manufactured by TSMC
* Extreme overclocking, reported to have achieved about 420 MHz bus for overclocking an Athlon 64 FX-62 processor [11], from originally 200 MHz.
* Optional discrete chipset cache memory of at least 16 KB to reduce the latencies and increase the bandwidth [10]
* Supports Dual Gigabit Ethernet, and teaming option [10]
* Reference board codenamed "Wahoo" [12] for dual-processor system reference design board with three physical PCI-E x16 slots, and "HammerHead" for single-socket system reference design board with four physical PCI-E x16 slots, also notable was the reference boards includes two ATA ports and only four SATA 3.0 Gbit/s ports (as being paired with SB600 southbridge).
* Will pair with SB750 southbridge with support up to six SATA ports and enhanced Phenom processors overclocking via ACC functionality, and will later support Socket AM3 with DDR3 SDRAM support in the first quarter of 2009.
* Enthusiast discrete multi-graphics segment

790X

* Codenamed RD780, final name revealed to be "AMD 790X chipset" [13]
* Single AMD processor configuration
* Two physical PCI-E x16 slots (one 16x and one 8x electrically. In Crossfire mode, both will revert to 8x electrically)
* HyperTransport 3.0 and PCI Express 2.0
* ATI CrossFire
* AutoXpress
* AMD OverDrive
* Energy efficient Northbridge design
o 65 nm CMOS fabrication process manufactured by TSMC
* Mobile version (codenamed RD780M) planned, supporting CrossFire for two AXIOM/MXM discrete mobile GPUs [14]
* Can pair with SB750 southbridge with support up to six SATA ports and enhanced Phenom processors overclocking via ACC functionality.
* Supports Socket AM3 with DDR3 SDRAM depending on motherboard BIOS
* Performance discrete multi-graphics segment
http://www.amd.com/us-en/0,,3715_153..._15358,00.html
http://en.wikipedia.org/wiki/AMD_700...t_series#790FX

The 790FX chipset is AMD's top of the line chipset. In comparison wise, you would have to compare the UD5P to other 790FX chipsets because the 790X could never match it.
 
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