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SemiAccurate gets some GTX480 scores. Charlie says he knows performance spec's

*despair*

That's got to be one of his least rant filled articles.

I'm inclined to believe it's true as well.

If it's true, then wow, seriously.

nVidia are having some big issues.

The huge lack of anything from nVidia directly kinda backs this up at least in terms of believability.
 
Theres one piece of bs in there...

There is one bright spot, and it is a very bright spot indeed. No, not the thermal cap of the chip, but the tessellation performance in Heaven. On that synthetic benchmark, the numbers were more than twice as fast as the HD5870/Cypress, and will likely beat a dual chip HD5970/Hemlock. The sources said that this lead was most definitely not reflected in any game or test they ran, it was only in tessellation limited situations where the shaders don't need to be used for 'real work'.
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Unless they are running some part of the benchmark I've missed its as heavy on the shaders as any game if not more so as well as the extra tessellation load.
 
Yeh, looks like AMD got um on the ropes!
The positive thing to come out of Nvidia losing market share will be that it will be harder for them to pull the batman no aa tricks etc.
 
What batman no AA trick?

There was one problem that the sources pointed to, on Heaven, the benchmark had many visible and quite noticeable glitches. If you were wondering why Nvidia only showed very specific clips of it at CES, that is why, DX11 isn't quite all there yet for the GTX480. This is probably why we have been hearing rumors of the card not having DX11 drivers on launch, but we can't see Nvidia launching the chip without them.
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Thats not an nVidia problem specifically but rather bugs in the DX10/11 implementation in Heaven - the same bugs happen on other cards too.
 
Rroff said:
Theres one piece of bs in there...



Unless they are running some part of the benchmark I've missed its as heavy on the shaders as any game if not more so as well as the extra tessellation load.
Click to expand...

Hmmm, but charlie says his sources say performance is disappointing in games, and I assume they have tested dx11 games?
Unless of course they didn't because of the lack of DX11 drivers.
 
Rroff said:
Theres one piece of bs in there...



Unless they are running some part of the benchmark I've missed its as heavy on the shaders as any game if not more so as well as the extra tessellation load.
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Theres a MASSIVE difference in an optimised benchmark and completely random game shader load, I mean, completely different. Even more so when its a benchmark, the FPS doesn't matter and you can optimise the driver to hold shader power back for tesselation if they decide to.

Also notice he said the same people who told him how good it was in that benchmark said it does not hold that lead in games.

Thats why, in hundreds of benchmarks across the year, especially ones aimed at highlight specific features, some have no bearing on in game performance, and others do.
 
Rroff said:
Theres one piece of bs in there...



Unless they are running some part of the benchmark I've missed its as heavy on the shaders as any game if not more so as well as the extra tessellation load.
Click to expand...

I'm pretty sure that you'll agree that the heaven benchmark is no way a real indication of a game running.

I recall hearing this before somewhere.

With Fermi doing tesselation on the shaders, it only excels at tesselation when the shaders are under light usage.

The fact that it doesn't have dedicated tesselation hardware should bring a bottleneck and a dip in performance during shader heavy scenes.

Whereas cypress has its own dedicated tesselation block/engine, it doesn't matter how heavy the shaders are being hit, tesselation performance will be consistent.

Also, as Drunkenmaster said, the benchmark is optimised to show DX11 of basically, it isn't and can't be an accurate representation of realworld game performance in DX11 outside of demonstrating the kind of hit tesselation has on performance.
 
Wow, and to think someone told me to hold off on a 5870 and wait for Fermi. No thanks. Rather not have a hotplate running in my machine!

I am seeing visions of those few Fermi that will get made and the guy who cooked his GPU in the oven! :D
 
hvn.jpg


You can't "hold" back shader power... shaders are shaders...

Lets take a simple scene from the heaven benchmark... off the top of my head I can see:

-Refraction shaders used on a number of heat sources including the smoke.
-A couple of types of specular shader including specular gloss maps i.e. on the metal dome roof.
-Extensive useage of types of displacement maps (which are NOT light on resource useage)
-God rays (again quite performance heavy)
-HDR lighting from the sun
-Projected shadows - again pretty shader heavy.
-Probable geometry shaders used on the foliage, tress and some other instances.
-Couple of particle shaders

Probably a few more I've missed... this isn't representative of typical game useage... its heavier than almost all games out atm... which would tend to indicate when it comes to future DX11 shader heavy titles even with tessellation its going to destroy the 5870 IF the rumours of double the performance are true.

Now it could be due to specific opptimisations for this particular benchmark... but to say its not using the shader capabilities so doesn't count is utter utter tripe.
 
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well oh dear!! the bad news just keeps streaming in for months and still nvidea themselfs still have nothing to say about it...unusual. but this really doesnt seem good.
if this is true, i dont even see why they would bother to release this :/
 
SiriusB said:
Wow, and to think someone told me to hold off on a 5870 and wait for Fermi. No thanks. Rather not have a hotplate running in my machine!

I am seeing visions of those few Fermi that will get made and the guy who cooked his GPU in the oven! :D
Click to expand...

This is Fermi!
Cue the thumbs up...:D

100_0283.jpg
 
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