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

[ArchAngel777]

Originally posted by: Dethfrumbelo
Faster RAM should help reduce the performance hit when AA is applied, yes?

Thats right. The memory is still a huge factor in performance today... For instance, my GeForce 7800 GTX chokes at 2X2 Supersampling FSAA. Of course, FSAA takes a bigger performance hit than regular AA, but it does look better, generally. Anyone who runs 1280 + type resolutions with 16X AF and 4X AA RGM will still benifit from more memory bandwidth in many games, though not all. It really just depends on the game for the most part and how demanding it is.

 

[lifeguard1999]

Originally posted by: CP5670
Cookie Monster's link was a bit broken. Try this:
http://www.hkepc.com/bbs/viewthread.php?tid=497984

VR-Zone Link
Xbitlabs Link
HKEPC Link

The VR-Zone link is for a review of an o/c 7800 GTX.
The Xbitlabs link is for the Quadro 4500.
The HKPEC link is suppossedly for the 7800 GTX 512MB.

I think that the HKPEC is really a Quadro 4500. Look at the upper let hand corner.
You can see the 14-pin header for NVidia G-sync/SDI option boards.

 

[otispunkmeyer]

Originally posted by: Rollo

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.

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.

i thought their cooler was simply the reference heatsink that nvidia designed for its Quadro cards based on G70? still 530Mhz core is F'ing sweet.....G70 is already pretty damn efficient, (most efficient?) its gonna be a powerful beast

i wonder if they'll be able to pull off a feat like they did with the 7800gtx, im willing to bet they'll have cards ready to buy on the day, but not with as much availability as the GTX had.

at 530Mhz, with that much ram, running at those stupid speeds...... would it almost conquer 7800gt's in SLI?

 

[nRollo]

Originally posted by: M0RPH
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.

You'd be wrong about that Morph. The Leadtek card with that cooler is for sale at $509.99, not any more than the other 490/1300 cards?

 

[nRollo]

Originally posted by: M0RPH

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.

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?

I'm not as sensitive to noise as some, but as CP5670 pointed out, the large fan on the Leadtek/Quadro allows for slower speeds and less noise than the little fans on the X1800XT, which have to spin faster to move comparable air.

 

[Matthias99]

Originally posted by: otispunkmeyer
at 530Mhz, with that much ram, running at those stupid speeds...... would it almost conquer 7800gt's in SLI?

EDIT: Fixed numbers. The 7800GT SLI should be faster in terms of fillrate by about 25% (theoretically; you lose some from the overhead of SLI).

7800GTX"UE": 24 pipes * 530Mhz = 12.7GPixels/sec.
7800GT SLI: 20 pipes * 400Mhz * 2 = 16.0GPixels/sec.

Of course, there could easily be a lot more OCing headroom on the 7800GTs than on what is effectively a factory-OCed 7800GTX. The extra memory bandwidth could let a GTX at that core speed pull ahead when using things like Transparency AA.

Also, as noted above, a card like this would not be cheap. Cores that would OC that well stably are likely very hard to get, and high-speed RAM like that is expensive as well.

 

[Lord Banshee]

Originally posted by: Matthias99

Originally posted by: otispunkmeyer
at 530Mhz, with that much ram, running at those stupid speeds...... would it almost conquer 7800gt's in SLI?

Could be close.

7800GTX"UE": 24 pipes * 530Mhz = 12.7GPixels/sec.
7800GT SLI: 16 pipes * 400Mhz * 2 = 12.8GPixels/sec.

Of course, there could easily be a lot more OCing headroom on the 7800GTs than on what is effectively a factory-OCed 7800GTX. The extra memory bandwidth could let a GTX at that core speed pull ahead when using things like Transparency AA.

Also, as noted above, a card like this would not be cheap. Cores that would OC that well stably are likely very hard to get, and high-speed RAM like that is expensive as well.

7800GT has 20 pipes not 16

 

[lifeguard1999]

7800GTX"UE": 24 pipes * 550Mhz = 13.2 GPixels/sec. (a.k.a. Quadro 4500)
7800GT SLI: 20 pipes * 400Mhz * 2 = 16.0 GPixels/sec.

 

[Matthias99]

Originally posted by: Lord Banshee
7800GT has 20 pipes not 16

D'oh! Thought those numbers seemed a little funny. That's what I get for not double-checking.

As the corrected numbers in lifeguard1999's post show, the 7800GT SLI would have better fillrate, but would probably start to be bandwidth-limited with some of the higher AA settings.

 

[nRollo]

Originally posted by: Matthias99
Also, as noted above, a card like this would not be cheap. Cores that would OC that well stably are likely very hard to get, and high-speed RAM like that is expensive as well.

I don't know about that Mathias99.

http://forums.anandtech.com/messageview...atid=31&threadid=1724576&enterthread=y

As I noted in that thread, a card that is basically what this card is supposed to be with 256MB of slower RAM is selling for $509 at it's launch. And the four places that reviewed it got an average OC of 533?

 

[Matthias99]

Originally posted by: Rollo

Originally posted by: Matthias99
Also, as noted above, a card like this would not be cheap. Cores that would OC that well stably are likely very hard to get, and high-speed RAM like that is expensive as well.

I don't know about that Mathias99.

http://forums.anandtech.com/messageview...atid=31&threadid=1724576&enterthread=y

As I noted in that thread, a card that is basically what this card is supposed to be with 256MB of slower RAM is selling for $509 at it's launch. And the four places that reviewed it got an average OC of 533?

Well, it's 40Mhz slower at the "stock" speeds than the 530Mhz being thrown around here. And you don't think a $500+ street price is expensive?

You'd be looking at an extra $50-100 -- at least -- for just the increase in RAM size, and I'm not sure how much more 1.1ns DDR3 costs compared to 1.6ns, but I'm guessing it's a fair bit more expensive.

 

[nRollo]

Originally posted by: Matthias99
And you don't think a $500+ street price is expensive?

For the fastest gaming video card you can buy, by a good margin? No, not at all.

Do you?

 

[Matthias99]

Originally posted by: Rollo

Originally posted by: Matthias99
And you don't think a $500+ street price is expensive?

For the fastest gaming video card you can buy, by a good margin? No, not at all.

Do you?

Um, yes. Videocard prices have gone through the roof in the last couple generations, if you haven't noticed. I realize performance has also gone up quite a bit -- and $500 for an overclocked 7800GTX is certainly a better deal than $500 for a 6800U was when it came out -- but it's a little ridiculous to have a high-end video card cost more than an entire midrange system IMO. It is, however, a free market, and prices will be set at whatever the market will bear.

Then again, you've always seemed to have a slightly different attitude towards price and price/performance than some of the other posters around here (including me).

 

[Boze]

Wow... after doing a little research, if everything posted here and on these linked sites is true, I think I'll be upgrading to a pair of 512 MB 7800GTXs if they're using the new 1.1ns RAM... I might finally be able to run EQ2 in Extreme Quality and still maintain more than 40 FPS... too bad EQ2 doesn't fully support SLI motherboards, although I'm not so certain on whether it supports SLI itself - I just know I had to uninstall the ForceWare Network Access Manager to get the game to run again... argh, so many questions, so few answers... EQ2 in Extreme quality makes me happy in the pants - I want to turn on all the effects and max 'em out!

 

[Boze]

Originally posted by: lifeguard1999
7800GTX"UE": 24 pipes * 550Mhz = 13.2 GPixels/sec. (a.k.a. Quadro 4500)
7800GT SLI: 20 pipes * 400Mhz * 2 = 16.0 GPixels/sec.

What you are proposing here is all good and well, but what can you get two 7800GTs for? Around $350 each is about the best pricing I've seen (give or take $10). Let's play Devil's Advocate and assume for the sake of going to market competitively against ATI that the 512MB versions of the 7800GTX are gonna sell for $500 (heck, make it $550 if you really want to).

What you're looking at then is $300 to $400 more for 10.4 GPixels/sec extra (26.4 total) in an SLI configuration. I'm not savvy enough to do the math and figure out the increase in performance - there are people like Rollo on these forums for that sort of thing - but I do know that $300 to $400 more, when you're already spending $700, isn't that much more of a jump... really it is not.