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3DMark Sky Diver Benchmark Thread

johny dolan said:
I bought 3dmark in a steam sale so I ran this new test using steam but my score seemed lower than everyone else was getting 27000 and I have sli 780s.

Running it from steam I didn't have the black screen issue mentioned and the test runs fine.

To check if the reason my score is low I downloaded it from guru3d and here is my score now using same clocks as before

http://www.3dmark.com/3dm/3282469

Cpu is 2600k @4.5

Cpu and gfx cards are water cooled.

using the downloaded benchmark from guru3d I did get black screen on the first test.
Click to expand...

Interesting.:)

Scoreboard updated.:)
 
humbug said:
I though i killed my GPU yesterday on this, it was running soooo well at 1200Mhz, i though i would give it a shot at 1250, again it was going well, until it got half way through the combined test, artefacts, flicker and Black Screen....
Ok so, hard reset, back into windows, within seconds flicking and Black Screen on the Desktop... oh no, hard reset... same thing over and over again :(:(:(:(

Boot into safe mode, unistall all overclocking apps, no, didn't fix it :eek::eek::eek::eek:

Back into safe mode again to unistall the drivers.
Running fine without drivers, ok. reinstall drivers. All is back to normal. Phew :o

I think what happened is the drivers monitoring the GPU didn't like what was going on and set the volts to 0mv during the bench.

This is the first time the Drivers have intervened like this on this GPU, but not the first time ever as it did it to me on the 7870XT when i ran that really hard during benching, it did the same think in setting the volts to 0.

the trouble is because this one has a factory overclock it has +50mv on it out of the box, with 0mv like that it black screens on the desktop.

I don't know how i feel about the drivers behaving like big brother monitoring my GPU and interfering like that, they may well have saved its life or just meddling.

Either way, i #### bricks.
Click to expand...

Drivers for both NVidia and AMD are going to be a bit quirky for the next few weeks until they bring them up to date for this bench.
 
LtMatt said:
Sometimes it makes a difference. More so in multi gpu i expect though.
Click to expand...

Not normally, in fact for games if you go too high on the RAM it actually reduces fps slightly. I think this could be where the CPU has to drive the RAM very fast (even though it's not needed) instead of driving the game.

I have tried several games with different RAM speeds and there is not much in it from 1600mhz up to 2400mhz, 2133mhz seemed to give the best performance but it was barely measurable.

If you look at setters results it is very similar, if you think of the Graphics score as similar to games you can see no difference running the memory @1600mhz or 2400mhz.

On the other hand if the CPU has to do some number crunching as in the Physics and combined tests then the extra RAM speed helps.
 
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