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Review shows Maxwell SLI performance drop @4K

Kaapstad

Kaapstad

Kaapstad

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I found this review quite interesting for the GTX 970 and 980 in SLI setups.

At lower resolutions they showed really good performance but as the resolution increased the cards did less well. This is interesting as it means the drivers are working properly (they were fine at the lower resolutions) and the drop off in performance could have another cause.



http://www.hardwareluxx.de/index.ph...-geforce-gtx-980-und-gtx-970-im-sli-test.html
 
It's clearly a driver / DX issue.

Unless you want to refute why it's faster at 1600p with MSAA in games like TR than it is with FXAA:

Edit, no sorry my mistake. SSAA which is twice as intensive on memory bandwidth. Which is what Kaap is implying
 
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2-9 frames? not that much really :p

been playing black flag at 3880x1537 that's fine on 980 sli constant 55-60fps :)
 
Kaapstad said:
I found this review quite interesting for the GTX 970 and 980 in SLI setups.

At lower resolutions they showed really good performance but as the resolution increased the cards did less well. This is interesting as it means the drivers are working properly (they were fine at the lower resolutions) and the drop off in performance could have another cause.



http://www.hardwareluxx.de/index.ph...-geforce-gtx-980-und-gtx-970-im-sli-test.html
Click to expand...

No comments. :D A proper review using the latest drivers also, not the ancient 13.12 or Geforce driver before April ones. :D (like most others did)

Only that I do not understand how they measured the db, because the 295X2 that is OUSIDE the case and next to my ear almost, I do not get more than 36db from the whole system. (6 fans+PSU) (the fan is working at 100% speed constantly).

Also I would like point that to anyone who has 780 Ghz, their stats should be the same as are for the 780Ti stock........

:D:D
 
CAT-THE-FIFTH said:
There is this review though of GTX970 SLI using the 344.07 drivers:

http://www.guru3d.com/articles_pages/geforce_gtx_970_sli_review,8.html

It appears the current set of drivers needs some more optimisation for SLI performance as there appears to be quite a bit of stuttering certain titles(well AMD sponsored ones in this case).
Click to expand...

SLI drivers were good, but stayed there without many changed. Indeed they got a 6% performance boost in April, alongside a 10% boost on single card performance.

However AMD Crossfire made some serious leaps forward over the last two years, making almost all 2 GPUs work as expected with doubling the speed, not just 50-60% as used to be, and is the case for many SLI solutions IMHO.

Btw The 295X2 used is aircooled one.......................
(prone to throttling and noise that one).
 
I personally wouldn't want to buy a 4GB card for 4K anyways having seen a couple of threads recently about VRAM usage. Apart from the 6GB 780 or Titan Black and the 8GB 290X, there isn't anything really suited to 4K and with those cards mentioned, you will need 3 of them in a realistic FPS/max details approach.
 
Gregster said:
I personally wouldn't want to buy a 4GB card for 4K anyways having seen a couple of threads recently about VRAM usage. Apart from the 6GB 780 or Titan Black and the 8GB 290X, there isn't anything really suited to 4K and with those cards mentioned, you will need 3 of them in a realistic FPS/max details approach.
Click to expand...

I totally agree with you Greg, and on serious note, I regret didn't bought those 780 6GB earlier in the summer at @380 per pop. Made my mind after the stock was gone :(

However none of the current gen can cut it through 4K. We need a single GPU that is 50% faster than the current top range ones, 8GB VRAM and then we can speak of 4K resolution in SLI or Crossfire.

Also we need 4K at 32"+ to make sense, at affordable prices.

Hence I plan to get a 3440x1440 monitor when there are going to have more offerings to choose at the end of the year.
It makes more sense as size & performance go on current and next card gen.

Possibly a new gen at 16nm (late 2016-early 2017) will possible be sufficient for 4K.
 
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Gregster said:
I personally wouldn't want to buy a 4GB card for 4K anyways having seen a couple of threads recently about VRAM usage. Apart from the 6GB 780 or Titan Black and the 8GB 290X, there isn't anything really suited to 4K and with those cards mentioned, you will need 3 of them in a realistic FPS/max details approach.
Click to expand...

This is also true. Albeit you can get away with 4GB as it stands but not by much, not enough that I'd feel comfortable with. 3GB is definitely not enough for SLi configs though.
 
Maxwell sli needs a massive over haul imo. I can reap another 30% in benchmarks by using tweaked profiling. Look at the valley test I did to confirm.
 
I don't mind the wait, I'm used to tweaking dual cards, but excited at the same time as I know the updates will come and my cards will be even faster.
 
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