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[Nordic HW] "We expected more from Radeon HD 7900" [Exclusive] - Page 4

post #31 of 115
Quote:
Originally Posted by L D4WG View Post

There are also always people like you who dismiss it as a rumor e.g the people who said bulldozer would destroy sandybridge.

Rumors can be wrong too you know. the whole point of a rumor is there is nothing factual about it, so using that arguement is a little absurd dont you think
post #32 of 115
rumor has it good, make life more interesting. biggrin.gif Only needs so that it is plausible. If not, it looks like a blank gabble. I love nvidia GPU, but do not like their policies. Sry for my english.
post #33 of 115
Quote:
Originally Posted by Evil Penguin View Post

Action speaks louder than words, nVidia.

This. NVIDIA, you'd better serve out something as amazing as Kepler himself or he won't approve.
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post #34 of 115
Quote:
Originally Posted by tpi2007 View Post

[...]
When Nvidia releases Kepler, on a 28nm process that has since matured, AMD will have had the HD 7970 on the market for 6 months, and will also benefit form that same more mature process by then and release the 2304 core GPU that was spotted in a paper by Sapphire.
Quote:
Originally Posted by naizarak View Post

lol AMD is playing everyone like a fool with these 7970's. they didn't include a whole shader cluster and most likely downclocked these "Beastly OC" cards to remain in a specific performance margin - faster than a 580 but slower than the 6990. when nvidia launches their cards, AMD will release an 8970 with the added shaders and higher clocks, the way it should have been originally. everyone will say that it's a natural evolution of the design, 6month revision, etc. etc. but in truth they already have it.

Sorry to burst your bubble, but you're both wrong.
AMD officially denied any hidden cores in the Tahiti die. It's full spec is the 2048 cores and the Sapphire paper had false info:

http://www.brightsideofnews.com/news/2012/1/3/amd-denies-any-hidden-cores-in-radeon-hd-7970-(tahiti-xt).aspx
Quote:
Originally Posted by OwnedINC View Post

60% is what you call a poor performance jump? Man you must really think Ivy is a flop then...
At least read the whole article before you try to post out of context snip-its of it.
Are you serious? I mean, have you actually checked ANY reviews or benchmarks?
The 7970 is 30% faster than the HD 6970. Not even close to 60%.

Quote:
Originally Posted by Arni90 View Post

That "review" is so very wrong on a lot of levels:
3-way CFX does not eliminate microstutter, not by a long shot. In my experience it's actually worse.
SLI is not smoother at 60 fps than CFX at 60 fps, it all depends on the game played. In my experience, it's just as horrible on either side.
Saying SLI has less microstutter than CFX based on framerate readings is the most idiotic assumption I've ever seen. When they don't even number the graphs I don't know if I should even be reading the article.
SLI does have signifcantly less microstutter, its a fact. Microstutter cant be measured / compared in a FPS reading, thats two totally different things and thats why this Toms Hardware review is totally wrong on every aspect since they are actually showing nothing else but the actual FPS across a certain time. They really believe a drop in your FPS is microstuttering but its not.

Microstuttering is simply the variation of frametimes between the two (or more) GPUs caused by inefficient communication.
For example GPU 1 renders frame 1 within 12 milliseconds while the next frame rendered by GPU 2 takes 30 or more milliseconds and so on. One frame will always be slower than the other and hence why there will be a small (hence micro) stutter. It's basically the delta between each frametime which causes this. It has absolutely nothing to do with FPS drops or something like that, it appears everywhere, at 60 fps, at 100 fps, yes even at 1000 fps, theres no limit.
However, the amount of frames put out in a single second is so huge that it's virtually impossible to notice at such high framerates. General sayings tell that constant 60 fps is the magical border where microstutter wont be visible anymore. But of course its all down to each persons subjective perception as some people stated they would still notice microstutter above 60 fps.

A single GPU for example renders frames at a constant time, so each frame would be rendered in 30ms for example which makes it smooth as butter as theres no delta between the frametimes. Thats why microstutter on a single GPU is NOT possible (some people believe they are encountering microstutter with their singel GPUs but thats simply FPS drops and a total different thing)

It heavily depends on the game as to what extend the frametimes will differ, but generally speaking SLI achieves MUCH smoother frametimes in a most games. There are games where they perform equal or CF even shows less microstutter though, but thats a minority.

Heres some examples including actual frametime graphs with the Y-Axis showing the time (ms) in which each frame is rendered: http://www.computerbase.de/artikel/grafikkarten/2011/test-radeon-hd-6900-cf-vs.-geforce-gtx-500-sli/20/
Quote:
Originally Posted by Neroh View Post

I dont care if you dont take me seriously. Theres no microstutter with the 7970s on a detectable level and most people who actually have the cards will say the same thing
Whatever, you read an article and believe it to be gospel. Thats fine but dont preach about Crossfire without actually having personal experience with it, unless you want to be called out for being a moron by those who have experience
I'd believe someone with the cards over Toms Hardware any day lol
Sorry but facts / numbers overweight a persons subjective feeling.
Microstutter as with current SLI/CF technology IS there and is unavoidable. However, it is a totally subjective thing, some might notice it more than others, some wont notice it at all..., but saying there is no visible microstuttter just because a single person or even a group is not able to notice it, is beyond naive.

That Toms Hardware guide gives a total different impression of what microstutter actually is, though. They should delete that article, too many people have been misleaded by it.
Edited by toX0rz - 1/25/12 at 4:39am
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post #35 of 115
HAHAHA_OH_WOW.jpg

Wow, Nvidia is being a massive troll lately. I like where this is going.
     
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post #36 of 115
Guys,please watch the behaviour and the language in this thread. There is to be no profanity on overclock.net and respect one other.
post #37 of 115
Thread Starter 
Quote:
Originally Posted by toX0rz View Post

The 7970 is 30% faster than the HD 6970. Not even close to 60%.


To be precise @ 1900x1200, the 6970 is relatively 23% slower than the 7970 :

700
Edited by thematrix606 - 1/25/12 at 5:28am
post #38 of 115
Quote:
Originally Posted by OwnedINC View Post

60% is what you call a poor performance jump? Man you must really think Ivy is a flop then...
At least read the whole article before you try to post out of context snip-its of it.

60% in a few titles doesn't consolidates as an all round performance increase. And frankly, it is the "lows" that really matter. Going from 24 to 28 fps in the lows as opposed to 40 averages to 55 averages doesn't mean much.
post #39 of 115
Quote:
Originally Posted by Mike395 View Post

Wow, nVidia isn't impressed with AMD's latest card? I wouldn't have guessed.
In other news, Apple doesn't think Windows 8 is that good, Honda isn't a fan of the latest Camry, and Coke just doesn't like the taste of Pepsi.

I lol'd. So true.
    
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post #40 of 115
Thread Starter 
Quote:
Originally Posted by killnine View Post

I lol'd. So true.

Yeah me too, but if you look at the HD6xxx vs GTX5xx generation, you can clearly see the winner, and even the price per performance is pretty much accurate on both sides.
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Overclock.net › Forums › Industry News › Rumors and Unconfirmed Articles › [Nordic HW] "We expected more from Radeon HD 7900" [Exclusive]