3780x2 slower than 2 x 3870`s

[rippling]

ok problem i have been thinking of , if the normal 3870 uses gddr4 how on earth can the 3870x2 use slower gddr3 memory and hope to be faster? even the memory speeds are way slower than the 3870 , and prob wont overclock aas high?

 

[Monkeynut]

The timings are tighter, the GeForce ccards get away with it, plus the cards are on the same board, so less latency on the GPUs I guess.

 

[fornowagain]

Then is should called a 3850x2. Isnt there a GDDR4 version?

 

[gurusan]

Then is should called a 3850x2. Isnt there a GDDR4

Except the cores run @ 825mhz

TBH from what I've seen gDDR4 is just a marketing gimmick at the moment. My GDDR3 can do 2200mhz with far tighter timings than GDDR4

 

[HangTime]

GDDR4 cards from ATI haven't been anything special - don't forget they released a GDDR4 version of the X1950XTX running at 2ghz, which was nothing to write home about due to the slacker timings.

 

[fornowagain]

Except the cores run @ 825mhz

TBH from what I've seen gDDR4 is just a marketing gimmick at the moment. My GDDR3 can do 2200mhz with far tighter timings than GDDR4

825/1900 seems to be the reference now, have seen a few at 775 maybe early samples.

Just as long as they don't use that awful Qimonda 1ns, like the 8800GTS 512.
_______________

Just reading a few comments on XS.

i got 2 from ***** today
checking the bios"es" and find out there is 860 lock again on P1. P0 doesn't seem to have lock but not sure

P0 P1? yes there are 2 bioses on one card

memory doesn't overclock high either.... BJ1A but weird... 999 is not reachable

So the usual Samsung 1ns and locked again.

 

[psychas]

of course its slower imagine putting everything that has in 2 boards in one and + single 3870 has faster ram.

 

[Gerard]

of course its lower image putting everything that has in 2 boards in one and + single 3870 has faster ram.

What are you on about "lower image"

 

[LoadsaMoney]

No one knows if they are slower.

 

[Perfect_Chaos]

like i said before in another thread, 2 seperate cards are always quicker than a 2x card. if you look at benches it seems to be the same every time.

its kinda poor but at least its not too far behind 2 seperate cards

 

[WatchTower]

These cards will be great for Mobos with only one PCIx16 slot. Like on Micro ATX mobo.

 

[Tute]

These cards will be great for Mobos with only one PCIx16 slot. Like on Micro ATX mobo.

Exactly.

 

[Cyanide]

These cards will be great for Mobos with only one PCIx16 slot. Like on Micro ATX mobo.

They'll be even better for mobos with dual PCIx16 slots. x38 ***!

 

[LoadsaMoney]

They'll be better on PCI-E 2.0 slots judging by the massive hit they take when not in one, no point getting a one if thats the case, absolute huge market they gona miss out on, as no ones gona spend £300+ on it, and about another £200 for a new mobo for it as well, othewise they gona have to cripple it with their 1.0/1.1 slot boards.