GT300: 256 GB/s memory bandwidth?

[josiahsuarez]

http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.hardware-infos.com%2Fnews.php%3Fnews%3D2930&sl=auto&tl=en&history_state0=
GT300 set to 512-bit GDDR5 interface

Accordingly, with the Nvidia GT300 or the provisional leader of Geforce GTX 300-series GDDR5 memory to fall back. This has been adapted by the memory interface to, but more data lines 512 should possess. At the beginning of the year we reported on an improved memory management in the GT300.

The smallest available GDDR5 memory is currently 0.5 nanoseconds, and thus quickly to 2000 MHz I / O clock specified. In combination with a 512 bit wide memory interface, this would satte 256 GB / s memory bandwidth mean. For comparison, the Geforce GTX 280 is only 140.8 GB / s memory bandwidth.

How much of GDDR5 memory installed later on the presumably under the name Geforce GTX 380 graphics card clock started, is still open. After passed the tape-out will be this initial statements can meet. The same goes for the memory size, the 1024 and / or 2048 will amount to MiB.

[CaptNKILL]

:drooling:

Me want.

[Toss3]

256GB/s? This thing is going to be a monster! (nana2)

[CaptNKILL]

I just hope they don't neuter the fillrate.

You can have 10 billion shader processors and 15Tb\sec of bandwidth but if the card only has the fillrate of a GTX 295 it isn't going to break any new ground with performance.

[walterman]

+ overclock (1200 MHz GDDR5) = 300 GB/s = BloodRayne2 1920x1200 16xS @ +120 fps :drooling: (nana2) :D

[TheANIMAL]

Firstly what are the odds this will be true?

Secondly, if it is true, how much more bandwidth does that offer over current cards?

[Toss3]

Firstly what are the odds this will be true?

Secondly, if it is true, how much more bandwidth does that offer over current cards?

"For comparison, the Geforce GTX 280 is only 140.8 GB / s memory bandwidth."

Says so in the first post.. :P

[slaWter]

:drooling:

Me want.

Hell yeah :D

[Toss3]

When are these babies slated to be released?

[CaptNKILL]

When are these babies slated to be released?

Not soon enough. :p

I think the rumors are pointing to the 4th quarter of this year... so, October, November, December.

Hopefully we won't have to wait that long for solid info.

[Runningman]

When are these babies slated to be released?

I would look at past trends, when was g70 and G80 released, did either of them get released at or around the time of Vista, if so, I would think that would be your answer.

[nekrosoft13]

G80 was released few months before vista.

[Ninja Prime]

http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.hardware-infos.com%2Fnews.php%3Fnews%3D2930&sl=auto&tl=en&history_state0=

NM, translation issues. ;)

[Dreamweavernoob]

**** we have to wait til like november for these cards? Damn thats a long time :(

Im tempted to go 9600gt sli (have one atm) and merely buy myself a 3D screen (22")

[rage10]

What about the bandwidth ?

256bit GDDR5 @ 4 GHz = 128 GB/s (the same sort of GDDR5 used in the 4870 cards)
256bit GDDR5 @ 7 GHz = 224 GB/s (with that Samsung GDDR5 @ 7 GHz)

384bit GDDR5 @ 4 GHz = 192 GB/s
384bit GDDR5 @ 7 GHz = 336 GB/s

512bit GDDR5 @ 4 GHz = 256 GB/s
512bit GDDR5 @ 7 GHz = 448 GB/s

Poll your vote
think its possible to oc the GDDR5 to 7ghz?

[CaptNKILL]

think its possible to oc the GDDR5 to 7ghz?

No. :p

[walterman]

think its possible to oc the GDDR5 to 7ghz?

Samsung manufactures chips with different specs.

They started the production of the 7 GHz chips some months ago:
http://www.xbitlabs.com/news/memory/display/20090212111407_Samsung_Begins_to_Produce_7GHz_GDDR 5_Memory.html

The new GDDR5 memory chips are not only capable of working at up to 7GHz clock-speeds, but also use 1.35V voltage, a reduction from 1.425V – 1.575V voltage of currently available GDDR5 memory chips from Samsung. Moreover, the new GDDR5 devices are cheaper to produce: by adopting 50nm class technology, Samsung expects production efficiency to rise 100% over 60nm class technology.

7GHz GDDR5 chips could provide 224GB/s or 448GB/s peak bandwidth when connected to a processor using 256-bit or 512-bit memory bus, respectively. It is unclear which of the forthcoming graphics cards will utilize 7GHz GDDR5 chips, but since both ATI, graphics products group of Advanced Micro Devices, and Nvidia Corp. are projected to release their new high-end graphics solutions later this year, it is definite that high-speed memory will be in demand.

448 GB/s 512bit GDDR5 7 GHz ... :drooling::drooling::drooling:

It could be the biggest jump in the industry since ATi introduced the 256bit bus for the first time with the mighty 9700 Pro.

[CaptNKILL]

Let me clarify.

Yes, they can make GDDR5 clocked at 7Ghz, but no, you won't be able to overclock 4Ghz GDDR5 to 7Ghz. :lol:

[Buio]

448 GB/s 512bit GDDR5 7 GHz ... :drooling::drooling::drooling:
It could be the biggest jump in the industry since ATi introduced the 256bit bus for the first time with the mighty 9700 Pro.

And slap on 2GB too from start and we are talking.

[slaWter]

And slap on 2GB too from start and we are talking.

QFT :D

[XDanger]

Will pci-e 1.1 bottleneck the GT300's or will it just be incompatible?

[Dreamweavernoob]

Will pci-e 1.1 bottleneck the GT300's or will it just be incompatible.

Im hoping it will be incompatible due to it being so fast :lol:


I can hope.

[CaptNKILL]

It better not be incompatible. My system is more than capable of feeding one of these cards. :p

[Dreamweavernoob]

It better not be incompatible. My system is more than capable of feeding one of these cards. :p

but....but...... dont you want another opportunity to upgrade :D


:headexplode:

[jcrox]

Finally off of the GDDR3