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Will Radeon 4870/4890 bottleneck in GIGABYTE GA-G31M-ES2C (rev. 1.x) ?

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August 25, 2009 11:39:00 AM

current pc -

Pentium D 3 ghz, 4mb cache, 800 fsb :cry: 
gigabyte ga-965gm-ds2 (rev. 2.0) :cry: 
2 x 1gb ddr2 800 in dual channel :( 
asus geforce 9600GT 512mb ddr3 @ stock clocks :( 
400w thermaltake psu


upgrade plan -

pentium dual-core E5200/E6300
gigabyte ga-g31m-es2c (rev. 1.x)
2 x 2gb ddr2 800
radeon 4870/4890 1GB DDR5 (not sure) :??: 
450w/500w psu (not sure) :??: 


ques is, will 4870/4890 1GB bottleneck in my next G31 mobo ? :??: 
a c 177 V Motherboard
August 25, 2009 2:39:53 PM

Cna you provide a pointer to the GB site for this board? My manual collections shows the ES2L sharing a manual with the ES2C, but, hunting at my usual selection site:
http://www.gigabyte-usa.com/Products/Motherboard/Produc... G31
doesn't show it, and their search feature gave no result. The manual I have shows a PCIe2x16 slot, which is as fast as it gets (good up to 250MB/s)...
August 25, 2009 4:52:09 PM

bilbat said:
Cna you provide a pointer to the GB site for this board? My manual collections shows the ES2L sharing a manual with the ES2C, but, hunting at my usual selection site:
http://www.gigabyte-usa.com/Products/Motherboard/Produc... G31
doesn't show it, and their search feature gave no result. The manual I have shows a PCIe2x16 slot, which is as fast as it gets (good up to 250MB/s)...


here you go -

http://www.gigabyte.com.tw/Products/Motherboard/Product...
:D  :kaola:  :sol:  :hello: 
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a c 177 V Motherboard
August 25, 2009 5:03:51 PM

Yup - still shows a 'shared' manual; my understanding is that Intel's GMA3100 is absolutely ass-kicking, as integrated graphics chips go; but, if it's what you were planning, I don't believe it will do HybridCrossFireX with your 4870/4890; need an AMD graphics chip for that - they have a new 4200 that also seems to kick booty!
August 26, 2009 4:04:50 AM

i think we have a misunderstanding. :) 

no, i'm not gonna crossfire. :D 

i'm gonna buy that mobo (decision changeable) and then gonna buy either a radeon 4870 1GB DDR5 or radeon 4890 1GB DDR5. :sol: 

i just want to know that will either of these gpu's bottleneck on that mobo ? :??: 

a c 177 V Motherboard
August 26, 2009 3:31:29 PM

I guess I'm not understanding this; my question is: why do you think it will? It's not like there are two slots, with one of them at 4x or 8x - which causes endless questions about the matter - and the fact is, very few graphics boards will even 'fill' a 4 lane PCIe - take a look here:
http://en.wikipedia.org/wiki/PCI_Express
for an overview... An eight lane slot might start reaching capacity with a pair of dual GPU cards, i.e., a couple 4870x2s 'talking' but, you have to remember, if they're crossfired, some of the bus loading is passed off to the crossfire connector. There is nothing on the market (and likely won't be for a while) that will overrun a sixteen lane rev2 slot; and when they do get that far, rev3 will, once again, double the signalling rate!
!