can't get GTX780 Ti up to speed

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pieterberv

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Dec 23, 2013
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10,510
I rebuilt my pc to:

P9 X79 motherboard
i7 4930K cpu with Arctic cooler
32 GB 1600 ddr3
Asus GTX780 Ti and Asus R9 290X graphic cards
600W power
fresh W8.1 Pro install

So this should be pretty a good set, have benchmarked my system with the R9 290X card, just a bit low on the hdd's but in all other areas top. I get good performance in gaming.

When I put the GTX 780Ti in, I get less then half the performance of the Radeon card, it just won't perform. I have even tested another GTX 780Ti card to make sure, same thing (was planning to use them in SLI but first need to figure out how I can get one to perform...).

Looking at the GPU monitor the GPU load is always just around 20-30% for the GTX with some peaks when the game opens, the 290X is on 100% when in the game as one should expect.

Have tried performance settings in nVidia configuration, made specific settings for game, nothing changes, still very poor performance for this top rated card. Must be doing something wrong...


 
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yea something sounds wromg, sure your psu is up to the job? 600watt is min requirement I think could try resetting the bios for motherboard although I cant see that doing much, what temps are the 780ti running at?
 
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You mean AMD drivers for the mobo and chipset? How do I purge them other than re-install them from the DVD disk? Have done this over and over...

I have installed the drivers from the P9 X79 dvd, the mobo came also with a dvd: Asus mobo Windows 8.1 driver support dvd Rev 1141.01, but this dvd opens in a browser and I can install anything from it. Have downloaded latest W8.1 drivers from Asus support site.
 
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running at around 50C or so...
 
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You mean AMD drivers for the mobo and chipset? How do I purge them other than re-install them from the DVD disk? Have done this over and over...

I have installed the drivers from the P9 X79 dvd, the mobo came also with a dvd: Asus mobo Windows 8.1 driver support dvd Rev 1141.01, but this dvd opens in a browser and I can install anything from it. Have downloaded latest W8.1 drivers from Asus support site.
 
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I'd guess drivers, make sure the old ones are fully deleted, as in before you shut down to install/swap the new card, go to control panel, then to drivers, then find the graphics card, and delete driver, then shut down computer, swap cards out, then upon loading windows will search for correct driver, until you install the correct/new/up to date drivers from cd/usb/website.

Otherwise, ive just gone from 7870 to 770, and notice that my 7870 was always 90%-100%, but now the 770 sits around 50%, and never usually goes up from there. That is until I turn up the eye candy, and then it starts increasing. So I think, just my conclusion don't hold me to this, but that the card only works as much as it needs to, if your not maxing the card out its not going to max itself out if it can do the work at 50% itll work at 50%.
 
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I'd guess drivers, make sure the old ones are fully deleted, as in before you shut down to install/swap the new card, go to control panel, then to drivers, then find the graphics card, and delete driver, then shut down computer, swap cards out, then upon loading windows will search for correct driver, until you install the correct/new/up to date drivers from cd/usb/website.

Otherwise, ive just gone from 7870 to 770, and notice that my 7870 was always 90%-100%, but now the 770 sits around 50%, and never usually goes up from there. That is until I turn up the eye candy, and then it starts increasing. So I think, just my conclusion don't hold me to this, but that the card only works as much as it needs to, if your not maxing the card out its not going to max itself out if it can do the work at 50% itll work at 50%.
 
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Is the 780 Ti with a reference cooler or aftermarket? My 780 ti with reference cooler pushes 78C under full load, it does 50C around 30% load. Unless yours is water cooled then yea its not giving you 100% under load with that low of a temp as the card runs hot.

When I swapped from my previous card to the 780 ti I completely wiped my PC of the previous graphic card drivers and did a clean install from the nvidia site of new drivers for the 780 ti.
 
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just make sure you uninstall all amd drivers with the amd card still in pc then remove the amd card and put in your 780ti and install drivers if its only hitting 50c then it means the card is doing hardly any work because it probs be in hi 60's low 70's if it was thrashing card, sound like card is not being pushed

this is all I done when I upgraded from my 7870 to my gtx 760 had no issues at all ... just wasn't impressed with the 7870 think it over rated for the money to behonest.
 
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You need to do something like this:

Remove AMD card, install Nvidia card

Go to programs, where ever that is in 8.1, and remove the amd program that runs the card.

Now install the nvidia drivers.

If this doesn't work, you may need to do a regestry clean too. Not sure how to do it in 8.1 though.

Plus, that power supply is too lite. You may need to upgrade it to at lease 750W
 
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I always run my PC in windows power setting on high performance. that may help. winows power options not the NVidia gfx settings as you said you already set that to max performance over powersaving.

not to mention theres no way you will be SLI two GTX780ti's with an 600watt PSU lol
 
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Really? unimpressed with 7870? I just had xfx 7870 dd, tried a second to crossfire nothing but problems. So I just days ago upgraded to a 770, and ran benchmarks and many games since then. Not a huge difference at all, some benchmarks actually score lower than my single 7870, games other than battlefield 4 maybe a 10fps difference. If I had known I would've just kept my 7870. I was overly impressed with that card.
 
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Well, yes, they used the old design, but new technology. If you'd look at any review/benchmarks between the two, the 770 should be way faster than the 660. But as far as rendering with gpu, when I went from one to crossfired 7870's it knocked 10-30 min off video time. the 770 knocked another 10-20 min off the crossfired times, so the jump has been worth it. As I first started over hour and half, overclocked to hour 20, crossfired to about an hour, and now 45 min tops. So that half of what my stock 7870 did,
 
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Very true, about 10% faster. Add a superclocked 770 and your looking at a 15-20% advantage, on top of the card costing $350.
 
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I have uninstalled the video drivers, then installed them again with the GTX 780Ti in place. Still the same results.
I have run the benchmark test with both cards, and it was interesting to see that during the test the GPU load and voltage were pushed to the limits I set, where when playing a game the GTX GPU stays on around 30% whatever I do, and the 290X goes to 100%. I have made some screenshots, can't upload them unfortunately...
 
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Cleaning your system of old gpu drivers isn't the problem. Your computer isn't that dumb that it confuses one completely different type of driver with another. I recently tried this by uninstalling and deleting every last trace of nvidia and rebooted several times and had the same results as before.
 
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