Geforce GTX 380 benchmarks!?

[josiahsuarez]

of course this could be another fake, so keep that in mind...

http://www.czechgamer.com/novinky/5780/Realny-vykon-GeForce-380.html
http://i36.photobucket.com/albums/e16/josiahsuarez/RobertVarga_09-01-2010-11-26-19_fer.jpg

[Vardant]

That chart is an estimation from some guy on XS Forum - http://www.xtremesystems.org/forums/showpost.php?p=4191129&postcount=638

And btw. that site is a czech version of SemiAccurate when it comes to HW news. Look for Robert Varga on their forums and you'll see what I mean ;)

[Revs]

Looks reasonable, but...

http://farm3.static.flickr.com/2414/1580792921_f8abfbc901.jpg

[AthlonXP1800]

GTX 380 with 3GB GDDR5? Other sources I found that it will come with 2GB GDDR5?

[K007]

wtf kind of a ram is that?

[Vardant]

GTX 380 with 3GB GDDR5? Other sources I found that it will come with 2GB GDDR5?
It will most likely come with 1.5GB.
3GB is possible too, for presentations or Surround gaming edition, who knows.

[lduguay]

It will most likely come with 1.5GB.
3GB is possible too, for presentations or Surround gaming edition, who knows.

Wah?

[Vardant]

Well, ATI normally sells 1GB HD 5870, but there's the 2GB model for Eyefinity with 6 DP ports, so I'm just guessing, that NV can do the same thing. More memory for 3D Vision Surround.

3GB for a regular edition seems too much, so either that or it was just for the show.

[methimpikehoses]

all your ram are belong to us

[Johnny C]

of course this could be another fake, so keep that in mind...

http://www.czechgamer.com/novinky/5780/Realny-vykon-GeForce-380.html
http://i36.photobucket.com/albums/e16/josiahsuarez/RobertVarga_09-01-2010-11-26-19_fer.jpg

According to that the difference between the 5850 and the 4870 is only 18% where it's more like 40-50%....


I call BULLSHATS on this....

[LydianKnight]

GTX 380 with 3GB GDDR5? Other sources I found that it will come with 2GB GDDR5?

2GB would not be a coherent number taking into account the memory controller is 384bits wide, not the supposed 512bit that was said in the beginning, 1.5GB seems like a safer bet

[Johnny C]

2GB would not be a coherent number taking into account the memory controller is 384bits wide, not the supposed 512bit that was said in the beginning, 1.5GB seems like a safer bet

Why would you need more than 256bit memory controller if you're running GDDR5?

[MustangSVT]

According to that the difference between the 5850 and the 4870 is only 18% where it's more like 40-50%....


I call BULLSHATS on this....
Not quite. The 5850 and the 4870 are at 68% and 50% respectively.

In terms of relative difference, the 5850 is 36% faster (68/50 = 1.36) which sounds about right.

[lightman]

According to that the difference between the 5850 and the 4870 is only 18% where it's more like 40-50%....


I call BULLSHATS on this....

Math 101: the difference between 50% (4870) of something and 68% (5850) of something is 36%, not 18% ;)


Edit: I didn't notice that Mustang beat me to it ;)

[halduemilauno]

http://www.xtremesystems.org/forums/showpost.php?p=4194402&postcount=762

Deep Dive meeting has over, and we already know how powerful GF100 is, and IT IS! Performance is better then expected, most peoples here will search in own words and feel to shy for craps in thread. We can only laugh now, because Nvidia did it! Perf in Unigine DX11 benchmark is spectacular, Radeon HD 5870 is there like low-end toy for kids against GF100.

PS. Yeah, GF100 has 512 CC, and GPUs are in massproduction now, plenty of manufacturers have first GF100 inhouse.

http://www.xtremesystems.org/forums/showthread.php?t=241120&page=31

(nana2)

[Redeemed]

http://www.xtremesystems.org/forums/showpost.php?p=4194402&postcount=762

Deep Dive meeting has over, and we already know how powerful GF100 is, and IT IS! Performance is better then expected, most peoples here will search in own words and feel to shy for craps in thread. We can only laugh now, because Nvidia did it! Perf in Unigine DX11 benchmark is spectacular, Radeon HD 5870 is there like low-end toy for kids against GF100.

PS. Yeah, GF100 has 512 CC, and GPUs are in massproduction now, plenty of manufacturers have first GF100 inhouse.

http://www.xtremesystems.org/forums/showthread.php?t=241120&page=31

(nana2)

Yeah... :rolleyes:

[Noriega]

I got something for you!
http://www.youtube.com/watch?v=S6BJ3CvPLhs

[Redeemed]

I got something for you!
http://www.youtube.com/watch?v=S6BJ3CvPLhs

DDoc? :wonder:

[LydianKnight]

Why would you need more than 256bit memory controller if you're running GDDR5?

You're probably right, but I'm not refering about the bus width per se, but the strange bus width, the usual is to make them in powers of 2, something like 32,64,128,256,512... maybe I'm wrong, of course, but I don't know what kind of memory chip placement should be done in orden to achieve 2GB on a 384bit bus, just that :P

[Johnny C]

You're probably right, but I'm not refering about the bus width per se, but the strange bus width, the usual is to make them in powers of 2, something like 32,64,128,256,512... maybe I'm wrong, of course, but I don't know what kind of memory chip placement should be done in orden to achieve 2GB on a 384bit bus, just that :P
2gb wouldn't work with a 384 bit bus,

nVidias 384bit bus is really just a 256bit bus running concurrently with an additional 128bit bus...and the bus width values have to do with bits and bytes...if ya know what I'm saying. I'd get right into it, and talk about clock cycles and data only being transmitted on the leading and trailing edge of the clock cycle but I just wanted to point out that it seems like nV is continuing to over-engineer their products. As far as I recall the 4800 series didn't seem adversely affect by having a narrower bus than the GTX200 series, lets assume it's due to the high bandwidth of the DDR5 memory modules themselves. Again we'll have to wait and see if Fermi actually benefits from the potential increase in bandwidth or if it's just making the chip larger/more expensive for little gain.

@ the math lesson....thanks guys...but I posted it just to see how many different methods of corrections I'd receive....hehe :D <-smartass

Edit:

http://www.nvidia.com/page/geforce_8800.html

Just to show that onboard memory is always a multiple of the bus width, I'm assuming it has to do with both how the traces are run on the PIB and how the memory controller functions.

[Ninja Prime]

It needs to be 1.5GB because it uses a 384 bit interface via 6 64 bit memory controllers and thus it needs 6, 12, or 18 memory chips. Chips are only manufactured in normal binary sizes, and currently they use 1gbit, which means it has 12 chips of 128MB, which is 1.5GB.

[Johnny C]

It needs to be 1.5GB because it uses a 384 bit interface via 6 64 bit memory controllers and thus it needs 6, 12, or 18 memory chips. Chips are only manufactured in normal binary sizes, and currently they use 1gbit, which means it has 12 chips of 128MB, which is 1.5GB.

1536 Mbytes correct?

[Viral]

The 6 64-bit memory controllers still work in unisen, so it's not like 256-bit + 128-bit like said a few posts above. It's 348-bit via 6 64-bit controllers. Just like 256-bit is 4 64-bit controllers.

ATI probably could've done 348-bit this time around considering the slightly larger die for RV870. I suspect the benefit wasn't great enough, like RV770, RV870 doesn't seem to be all that bandwidth limited in most situations.

[walterman]

Why would you need more than 256bit memory controller if you're running GDDR5?

To have the memory bandwidth to use 16xS AA @ 1920x1200 @ +120fps :drooling:

[hell_of_doom227]

GTX380 is a great card. The next generation will have 512bit along with GDDR5. Btw, all my info about performance of this card were true, i had numbers a long time ago. The Card is faster for about 40-46% then HD5870.