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[OBR-HARDWARE]New GTX Titan benchmarks have arrived - Page 26  

post #251 of 606
Quote:
Originally Posted by Alatar View Post

Do tell me how a 580 performs worse than a 680 in every scenario I've ever seen despite hawing higher memory bandwidth than the 680.

They have the same bandwidth: http://www.gpureview.com/show_cards.php?card1=637&card2=667

In memory intensive situations they would perform the same and in shader limited situations the GTX 680 would come out ahead. Considering it take unrealistic settings to find memory bandwidth limitations it's no wonder you haven't seen them tied very often.

I never once said a completely memory bandwidth was common. I said I would have to go out of my way to prove it but it would be entirely possible.
Quote:
Originally Posted by HeadlessKnight View Post

Keep your laws to yourself. You are comparing two different architectures, with different shader counts and claiming your 7970 will outperform a Titan? you didn't even see its performance, you are mere speculating and you don't want your 7970 to got beat handily by a generation jump, the rest of your post just says that, oh yeah... bandwidth starved GTX 690, bandwidth starved GTX 680... etc .

You are putting words in my mouth. I don't expect 7970 to outperform Titan at all unless you intentionally set up a benchmark (like Tom's did in the review I posted) to create a situation where a cards bandwidth is stressed more than other aspects of the card.
Quote:
Originally Posted by HeadlessKnight View Post

Give me a break rolleyes.gif...
Who really care about 7870 beating the GTX 670 with everything on Low? now crank the settings up and the 670 will spank the 7870.
Also the GTX 680 is faster clock-for-clock then the GTX 670. you just contradicted with your so-called law of physics.
It is the same as saying an FX 8350 will beat an i7 3970X due to more cores. On the other hand the i7 3970X mercilessly creaming all over the FX 8350.

Yes it does, which proves a memory bandwidth problem and it proves the inferiority of Nvidia's memory controllers or driver architecture, which completely contradicts your claim that Nvidia has superior memory performance and Kepler's memory architecture is more efficient.

As for the GB/s numbers I have given, they are only theoretical. If we could just use math formulas to determine a cards performance, there would be no reason for benchmarks. The reason why the GTX 670 does so poorly in that Tom's review and it loses to 7870 (that has less theoretical bandwidth) is because GTX 670 is more than likely operating with less bandwidth than is theoretically prossible while the 7870 is significantly closer to that.

But do you see the problem? It is possible to use less than theoretically possible but it is not possible to use more than theoretically possible. I realize you've thought you've stumbled upon some glaring flaw in my argument but you're basically countering my argument by saying that GTX 670 uses less bandwidth than it theoretically has so Titan can use more than it theoretically is capable of.

Which obviously means that for Titan to out-perform 7970 GE in strictly memory bandwidth limited situations (emphasis added because you seem to not be understanding this), it would have to either defy the laws of physics or 7970 would have to perform better than Nvidia's memory controller and both wouldn't reach theoretical limit.

However, considering GK104 is Kepler architecture and GK110 is as well, the memory controllers are more than likely the same (GK110 has a wider bus, but that doesn't mean it's a new memory controller) and the different between AMD's real world memory bandwidth and theoretical is smaller than the difference between Nvidia's real world memory bandwidth and theoretical.

So, basically, I would expect the difference between memory bandwidth performance between Titan and 7970 GE to be much larger than the difference of 288GB/s and 249GB/s theoretical max.

Do you have any more questions?
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post #252 of 606
Quote:
Originally Posted by mcg75 View Post

Let's get back to what you said earlier and stop the name calling babble.

You said the chart shows the 7970 ghz score as lower than what it should be.
As I stated earlier, their chart is right in line with what I get at stock clocks with a 3570k.

Let's see the proof of your 7970s scoring higher than those in the test at stock.

soon as my new board comes in we can go toe for toe all you want, should be today or tommorow.


Also for everyone else touting this as the biggest thing since sliced bread, sure it's impressive but anyone with one of these would have signifigant hardware, check this out

http://www.pccasegear.com/index.php?main_page=product_info&products_id=19122 4 7970s costs the same as 1 titan over here based on austins prices.
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post #253 of 606
This article discusses a Gk112 with 4 restructured GPCs.
A 2304 core gtx780
Quote:
We will re-layout of the chip named "GK112", the name does not exist in any known which NVIDIA roadmap. "GK112" logical structure is exactly the same as the with front two GK110 program, are 4 GPC/12 SMX/2304 ALU/192 the Texture Array, both in the same frequency performance is not much difference, but "GK112" 4 GPC native structure, its overall size and chip area compared GK110 will be significantly reduced, the overall rate even reached the level of about 15%, which will make it more structured and conventional chip layout



http://yj.cfan.com.cn/pingce/2013-01-25/1359121439d101563_6.shtml
post #254 of 606
Quote:
Originally Posted by sdlvx View Post

They have the same bandwidth: http://www.gpureview.com/show_cards.php?card1=637&card2=667

In memory intensive situations they would perform the same and in shader limited situations the GTX 680 would come out ahead. Considering it take unrealistic settings to find memory bandwidth limitations it's no wonder you haven't seen them tied very often.

I never once said a completely memory bandwidth was common. I said I would have to go out of my way to prove it but it would be entirely possible.

Strictly theoretical situations are pretty useless.

Yes a bigger number is better in theory but even guys who might be interested in raw numbers (extreme benchers doing suicide runs) don't do so with GPUs and even if they did would not be interested in theoretical memory bandwidth...

Saying that the situations "aren't common" is a huge understatement and pretty confusing if your point was about theoretical performance.
 
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post #255 of 606
Let the treadmill spit rumors!!! biggrin.gif

Although these look far more credible.
   
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post #256 of 606
Quote:
Originally Posted by sdlvx View Post

snip

How did you know that the Tomshardware benchmarks you put in your previous posts aren't just a problem with the drivers?
Why Tomshardware are the only ones who just recognized this weakness and not other credible sites like TechPowerUp?
You have to keep in mind that when a 7870 beats a GTX 670 or 680 ... etc is not strictly due to bandwidth or MC.
But can be due to the superior compute power of HD7000 series (example like DiRT showdown, Metro 2033 with DOF, Sleeping Dogs... etc)
The GTX 680 most of the time at stock match the 7970 and it has significantly less bandwidth, that is enough to prove how efficient Kepler arc. at using its bandwidth when compared to Tahiti.
Also I didn't say the GTX 680 is not a bandwidth limited card, yes it is. but considering a GTX 680 can match a 7970 most of the time with a 37% lower bandwidth. I have no doubts the Titan will destroy the 7970 on those strict bandwidth situations.
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post #257 of 606
so this Titan is a single GPU monster?
post #258 of 606
On another note, im curious how nvidia will price this. Its clearly slower than a 690 but no where faster than xfire 7970s which can be had for around $700.
Oh boy, this is going to be interesting.
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post #259 of 606
Thread Starter 
Quote:
Originally Posted by edo101 View Post

so this Titan is a single GPU monster?

Yup. Same monster die like you found in GTX 580 only a liiiittle bit faster tongue.gif
post #260 of 606
Quote:
Originally Posted by L36 View Post


On another note, im curious how nvidia will price this. Its clearly slower than a 690 but no where faster than xfire 7970s which can be had for around $700.
Oh boy, this is going to be interesting.

It's Nvidia, 999-1700 depending where you live.
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