Sign in with
Sign up | Sign in
Your question

X48 vs. p45 - The infuriating choice

Last response: in Motherboards
Share
August 19, 2008 10:24:01 AM


Hey Guys, I'm having trouble deciding on a motherboard and manufacturer - I'm purchasing a HD4870, Q9550, COrsair 740W, 8 gig DDR2 (Corsair) and 2 monitors. I MAY upgrade to crossfire in teh future, but i can't imagine i'll need that beastly performance for a while (i don't play crysis). Can you please tell me:

1. Is the only difference between X48 and p45 a good crossfire ability?
2. If I go with the x48 but don't bother upgrading to Xfire in the future, will i be seriously missing out?
3. Can P45s Xfire if need be?
4. Spending £150 on the MOBO ($290) - PLEASE give me some suggestions for a good one....none of that DDR3 crap though!
August 19, 2008 11:12:57 AM

lol ddr3 crap... i love it :) 

Well it all depends on if you want to go with the crossfire in the future

Personally i am going for the p45 rather than the x48, cos i wont be using xfire i game at 1440x900 :) 

August 19, 2008 11:54:47 AM

ddr3 is not crap. seriously.

its much better than ddr2. cost used to be its major weakness, but that has gone down now. you are much better off getting 4gb of ddr3 than 8gb of ddr2 IMO.

p45 is good if you dont crossfire.
Related resources
Can't find your answer ? Ask !
a b V Motherboard
August 19, 2008 12:05:40 PM

The main difference on the X48's is dual x16 PCi. So agreed that P45 is fine if you have no plans to crossfire.

Regarding DDR3 - There is no significant performance difference, except at the very highest clock speeds. Further, Quantity =/= speed under any circumstances.
August 19, 2008 12:10:13 PM

Im having trouble deciding which to go for ddr2 or ddr3... either 4gb ddr2 or 2gb ddr3
August 19, 2008 12:33:05 PM

If Crossfire is really the only thing you'll be worried about missing why not just get a P45 with Crossfire? They usually run at about $150 (USD not sure about Euro). That's what I would do anyway.
a b V Motherboard
August 19, 2008 12:42:20 PM

fruees said:
1. Is the only difference between X48 and p45 a good crossfire ability?
2. If I go with the x48 but don't bother upgrading to Xfire in the future, will i be seriously missing out?
3. Can P45s Xfire if need be?
4. Spending £150 on the MOBO ($290) - PLEASE give me some suggestions for a good one....none of that DDR3 crap though!


1) No, not entirely. It is the only diffrence you will likly notice, though.
2) Just missing out on some extra cash in your pocket.
3) YES!
4) ASUS P5Q-E for a P45 Mb or a Gigabyte GA-X48-DS4 for the X48.

If you want to compair CrossFire scaling between a P45 and X48 Mb, read This review.
August 19, 2008 1:11:26 PM

Thanks outlw6669, those were the answers i was looking for man
August 19, 2008 1:22:10 PM

Anything more than 4GB of DDR2 is just a waste of money unless you photoshop or CAD like crazy.
August 19, 2008 1:29:28 PM

yeah im also gonna overclock it to get a bit of extra from the Q9550 - possibly 3.5Ghz?
a b V Motherboard
August 19, 2008 1:31:33 PM

Just make sure and upgrade you cooling.
Either platform should take you that far even with DDR2 800 RAM.
August 19, 2008 1:34:13 PM

Is DDR2 800 limited in terms of overclocking?
WIll i see a big difference between 800 and 1066?
Cheers for the advice man
a b V Motherboard
August 19, 2008 1:41:12 PM

No problems, happy to help.

DDR2 800 will take you to at least 400Mhz on the FSB before it needs to be overclocked.
@ 400Mhz FSB and with your Q9550's 8.5 multiplier, you will be at 3.4Ghz.
DDR2 800 can also be overclocked with loosened timings.
I think you should be able to take it to at least 3.8Ghz, CPU and Mb willing, before you need DDR2 1066.

Don't just buy DDR2 1066 if you want a performance boost as you will get none.
CL4 DDR2 800 and CL5 DDR2 1066 both will access stored data at the same speed.
Unless you are running a server and utilising the extra bandwidth provided bye the faster RAM, you will see a 1-2% at most performance increase between the two standards.
August 19, 2008 4:28:04 PM

Really you don't need anything more than a P35.
DDR3 has not hit the bang for buck point yet, so it's a waste of cash.
Though I don't buy the bleeding edge, I am up to Quad for my video work.
But when you hear about games like the maker of Crysis, saying they will optimize the game engine to follow on issues, you have to ask! Why is the first game released so poorly coded?
August 19, 2008 4:35:16 PM

alex_oneill2006 said:
Im having trouble deciding which to go for ddr2 or ddr3... either 4gb ddr2 or 2gb ddr3



4gb ddr2 for sure

+1 to outlw6669 advice. good stuff.
August 19, 2008 4:42:08 PM

word to the wise (budget conscious):

Save your money, get DDR2 800. Instead spend it on other peripherals that will further enhance the user experience. This is what really makes a computer stand out from the rest.
August 19, 2008 6:30:01 PM

Like you I was undecided whether to get P38/P48 or P45, and for similar reasons. I just got a P45: http://www.newegg.com/Product/Product.aspx?Item=N82E168... for $139.99.
It was my first build and I love my P45! :bounce:  It supports Crossfire but I have yet to test it out. Good luck, so many decisions, so little time! :lol: 
!