X38 vs P45

amdhappy · 20 May 2008 at 09:38

What are the main noticable differences between X38 vs P45?

w.

bowza · 20 May 2008 at 09:45

i belive from reading here the P45 crossfire will not be x16 x16, but only x8 by x8

Please correct me if i'm wrong

thats one differernce

Bowza

Gogl · 20 May 2008 at 10:00

That doesn't sound great:

2 x PCIe 2.0 x16, support ATI CrossFireX™ technology dual at x 8 speed(blue)

I guess as individual PCIe 2.0 slots they operate at full speed, but just won't support Crossfire at full speed? What real world impact will that have on Crossfire, anyone any idea?

psychas · 20 May 2008 at 10:13

i think x38 x48 is better then p45 as i seen a graph/review somewhere that

p35<p45<x38<x48 but x48 x38 have minor differences should just get maximus formula for 129£

Cob · 20 May 2008 at 12:13

Ofcourse X48 is a bit better than P45.

That's the point of X48.

Sem · 20 May 2008 at 13:19

isnt the P45 65nm while the x38/x48 are 90nm

that should theoretically mean the P45 can clock better?

im hoping for that anyway

mdjmcnally · 20 May 2008 at 15:18

P35, P45 = Mainstream Market
X38, X48 = Performance Market

The P series of chipsets are aimed at the mainstream people who just stick it together and it works.

The X series are aimed at people wanting to extract the most performance from there kit.

The P45 will also I believe be paired with the ICH10 rather then 9 of the X38, not sure what the difference is tbh between these though.

X58 which will get the ICH10 will be used with the CPU's having memory controller onboard so X48/P45 is probably the last chipsets for the existing CPU's that don't have the memory controller onboard.

Not sure if we will see X48 paired with the ICH10 southbridge.

psychas · 20 May 2008 at 15:48

what ICH10 actually does ? :confused:

mdjmcnally · 20 May 2008 at 18:02

It is the southbridge so is the USB, SATA, IDE connections. Possibly get improved Disk I/O which is the slowest part of the system these days.

mmorpheus1 · 20 May 2008 at 20:22

I would Highly recomend the Rampage Formula , its the best board i have had yet for overclocking.

http://www.overclockers.co.uk/showproduct.php?prodid=MB-268-AS
:cool:

HighlandeR · 20 May 2008 at 23:32

mdjmcnally said:
It is the southbridge so is the USB, SATA, IDE connections. Possibly get improved Disk I/O which is the slowest part of the system these days.

That sounds so good, disk i/o needs to be boosted regardless, also I belive its the end of the humble ps2 ports

More USB yipeee

mrk · 20 May 2008 at 23:59

amdhappy said:
What are the main noticable differences between X38 vs P45?

w.

You only get a P45 when your x38 gets the sack ?

amdhappy · 21 May 2008 at 08:20

mrk said:
You only get a P45 when your x38 gets the sack ?

Clever, I see what you did there.

Vir · 21 May 2008 at 11:36

So these things are almost getting sold but we don't even know what the advantages/disadvantages are in comparison with x38.. apart from the two 16x PCI-E slots and the POSSIBLY higher I/O?

EDIT: Also I read on a review thingy that the P45 chipset is made of 65nm and the P35/x38 of 90nm. I guess higher FSB speeds are possible because of less heath generated? Just thinking out loud?