7800GS on the way. 512mb model(s) coming as well.

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Cookie Monster

Cookie Monster

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May 7, 2005
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There will be soon because it looks like the midrange 7600s/7200s are built on the 90nm process.

I know that 6800GS is an NV42 hence 12 pipelines, 5 vertex shaders 256bit 256 GDDR3 card clocked at 425/1000 and using the same pcb from the 7800GT. Xbitlabs mention all the 6 series might get a revamp e.g 6800nu equipped with new pcb for GDDR3 and higher core frequency etc.

7800GS could be a 16 pipe card? 6 VS? clocked around 400ish/1000ish?
Whats your thoughts fellow ATers? a new competitor in the $200~300 market?




 
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nRollo

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Jan 11, 2002
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Cool. More press that the 512MB GTX is coming, can't wait to see what they have coming to combat the X1800XT.
 
Cookie Monster

Cookie Monster

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May 7, 2005
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From Hkepc:

Link

It is stating that the upcoming 512mb GTX is equipped with not 1.25ns GDDR3 ram but the latest 1.1ns that can clock up to 1800mhz. IT is suggesting that only the 512mb GTXs will be equipped with the 1.1ns GDDR3 and that the ccore clock speed could be upped by 100 mhz.

1.1ns, 1800mhz!?!? I think it is the ultra but just using the GTX suffix.
I guess the 512mb GTX isnt going to be starved from the lack of bandwidth like the 256mb GTXs.

 
F

Fadey

Senior member
Oct 8, 2005
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jesus if its 512meg and 1800mhz.. bye bye my poor little asus 7800gtx =(
 
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CP5670

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Jun 24, 2004
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I was half expecting a core boost but 1800mhz memory would be amazing. That picture just looks like the existing Leadtek card though.
 
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nRollo

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Originally posted by: Cookie Monster
From Hkepc:

http://www.hkepc.com/bbs/viewthread.php?tid=497984">Link</a>

It is stating that the upcoming 512mb GTX is equipped with not 1.25ns GDDR3 ram but the latest 1.1ns that can clock up to 1800mhz. IT is suggesting that only the 512mb GTXs will be equipped with the 1.1ns GDDR3 and that the ccore clock speed could be upped by 100 mhz.

1.1ns, 1800mhz!?!? I think it is the ultra but just using the GTX suffix.
I guess the 512mb GTX isnt going to be starved from the lack of bandwidth like the 256mb GTXs.
Click to expand...

Wow :shocked:

If this is true, the 512MB 7800GTX will be a MONSTER.

If they're using that bad ass Leadtek cooler design, 100MHz increase on the clock would be very possible. I posted a thread from H yesterday that showed four reviews had an average OC from 490>530MHz.

I think it's safe to say that anyone considering a X1800XT might want to see what this has to offer before jumping.

A 490-530/1800MHz GTX would likely take back the lead in all benchmarks, not to mention have superior multi GPU capability, linux, and probably noise level. All ATI would have left is their slightly better adaptive AA and HDR+AA.

If HKEPC is correct, the guys at ATI may well start calling nV "The Grinch Who Stole Christmas"?

Good find, although the link no longer works.

 
N

nRollo

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Jan 11, 2002
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BTW- the topic of this should have "Possible 512MB GTX Info" as this is the first I've seen this referenced in the press, and if true, this is very big news.
 
M

M0RPH

Diamond Member
Dec 7, 2003
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Originally posted by: Rollo

A 490-530/1800MHz GTX would likely take back the lead in all benchmarks, not to mention have superior multi GPU capability, linux, and probably noise level. All ATI would have left is their slightly better adaptive AA and HDR+AA.
Click to expand...

Why would you assume that a two-slot cooler from Nvidia would be quieter than ATI's two-slot cooler? The last two-slot card from Nvidia was the 6800U and tests have shown that it's louder than the X1800XT. I guess as long as it's from Nvidia, two-slot (probably noisy) cooling is suddenly ok with you, eh?

 
C

CP5670

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Jun 24, 2004
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If this card will be using the Quadro cooler shown in the picture, it's supposed to very quiet compared to the normal one according to Xbit. The fan is quite large, so it can spin more slowly than those on other cards.
 
M

M0RPH

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Dec 7, 2003
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Just as I thought, you are talking about the cooler from Leadtek. Obviously it's a custom cooler design and makes the card quite expensive. You would not find a cooler like this on a stock reference design from Nvidia.
 
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ArchAngel777

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Dec 24, 2000
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The specs would be incredable, but I am skeptical on these. If these specs are accurate, then the card is going to be really expensive for one of these. I would say that you MSRP at $799 if the regular GTX is MSRP at $599. Adding more memory is expensive, but then adding more memory and having it be nearly 50% faster is a whole nother thing... I have my doubts. But if it is true, awesome :D
 
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CP5670

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Jun 24, 2004
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The cooler is the reference one from the Quadro 4500 card, not a Leadtek design. Although yeah, a memory speed jump of this magnitude does seem too good to be true. (although 550mhz on the core is doable, as that's what that Quadro runs at)
 
Elfear

Elfear

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May 30, 2004
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If the rumors are true I'm curious to see if the higher-clocking memory will help out the 7800GTX a lot or not. The core doesn't seem to benefit much from being oced (I gained ~5-6fps on average with a 70MHz oc @1600x1200 4AA/8AF) but maybe the memory will make a big difference.
 
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ArchAngel777

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Dec 24, 2000
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Originally posted by: Elfear
If the rumors are true I'm curious to see if the higher-clocking memory will help out the 7800GTX a lot or not. The core doesn't seem to benefit much from being oced (I gained ~5-6fps on average with a 70MHz oc @1600x1200 4AA/8AF) but maybe the memory will make a big difference.
Click to expand...

Right, but that is because the core "has many clocks"! :p The GeForce 7800 GTX is an oddball when it comes to overclocking.

However, you didn't specify what game... Going from 430 to 510 Mhz is a 18.6% improvement in clock speed. So when playing a game that isn't memory bandwidth limited, you should see anywhere around a 10-15% improvement in games. However, since you are using 1600 X 1200 and enabled 4X AA RGM and 16X AF, you might be running into a memory badwidth issue, depending on the game.

Run the game at 640 X 480 next time with that clock raised 70 Mhz and then come back with the result, it might be quite a bit different percentage wise.
 
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Dainas

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Aug 5, 2005
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I somewhat doubt it will be using 1.1ns GDDR, first off it will be expensive as heck and secondly there are a few rumor that they bought alot of 1.26ns. I can't think of another card in their lineup that would be needing such high spec'ed ram. Doesnt matter though, a 7800GTX with 1500mhz will unquestionably do what it was ment to, beat ATI back till the R580 appears.
 
Elfear

Elfear

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May 30, 2004
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Originally posted by: ArchAngel777
Originally posted by: Elfear
If the rumors are true I'm curious to see if the higher-clocking memory will help out the 7800GTX a lot or not. The core doesn't seem to benefit much from being oced (I gained ~5-6fps on average with a 70MHz oc @1600x1200 4AA/8AF) but maybe the memory will make a big difference.
Click to expand...

Right, but that is because the core "has many clocks"! :p The GeForce 7800 GTX is an oddball when it comes to overclocking.

However, you didn't specify what game... Going from 430 to 510 Mhz is a 18.6% improvement in clock speed. So when playing a game that isn't memory bandwidth limited, you should see anywhere around a 10-15% improvement in games. However, since you are using 1600 X 1200 and enabled 4X AA RGM and 16X AF, you might be running into a memory badwidth issue, depending on the game.

Run the game at 640 X 480 next time with that clock raised 70 Mhz and then come back with the result, it might be quite a bit different percentage wise.
Click to expand...

That's why I'm wondering what the higher memory clocks will do for the 7800GTX. If there isn't much gain from ocing the core in games at high res than memory bandwidth is the mosty likely culprit (from my limited understanding of the matter).

I'm sure if I turned the res down to 640x480 I would see better gains than at 1600x1200 but 99.99999% of gamers who buy a 7800GTX won't game at such a low res and thus, wouldn't see the improvement.

The games I tested were HL2, FarCry, and UT2004. HL2 and UT2004 were probably cpu limited but FarCry is definetely gpu bound and I really didn't see very much gain from ocing. I even tried downclocking the video card to 420MHz and than ocing it in delta steps (every 27MHz to bring all the clocks up at the same time) up to 520MHz, which is my plateau. I'll have to check when I get back home, but I believe I only gained like 5-6fps at 1600x1200 4AA/8AF from 420MHz to 520MHz.

I'll have to try out some other games to see if that holds true.
 
Jeff7181

Jeff7181

Lifer
Aug 21, 2002
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Originally posted by: Dainas
I somewhat doubt it will be using 1.1ns GDDR, first off it will be expensive as heck and secondly there are a few rumor that they bought alot of 1.26ns. I can't think of another card in their lineup that would be needing such high spec'ed ram. Doesnt matter though, a 7800GTX with 1500mhz will unquestionably do what it was ment to, beat ATI back till the R580 appears.
Click to expand...

In the past it's been the cards with lower amounts of RAM that get the faster RAM. Cards with more onboard RAM tend to have lower memory clocks and/or timings. For example, GF4 64 MB vs 128 MB. FX5900 vs FX5900 Ultra. So I agree, I doubt this 512 MB 7800 will use the 1.1ns RAM, however, some 256 MB 7800's may start appearing with it.
 
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lifeguard1999

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