GTX Titan Graphics card
is anyone using sucessfully using a GTX Titan with c1 ? can you share which one?
There seem to be lots of different manufacturers? eg http://www.scan.co.uk/shop/computer-har ... 2688-cores) shows several all with the Titan. Does it make any difference to C1 which one as long as it has GTX Titan on the box?
i don't want to fork out that much money and find it doesn't do anything for c1 performance.
There seem to be lots of different manufacturers? eg http://www.scan.co.uk/shop/computer-har ... 2688-cores) shows several all with the Titan. Does it make any difference to C1 which one as long as it has GTX Titan on the box?
i don't want to fork out that much money and find it doesn't do anything for c1 performance.
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The Titan will work, however, you should also consider the GTX780 as well: http://www.videocardbenchmark.net/directCompute.html 0 -
the GTX780 Ti is the fastest on the site you pointed me at. is it compatable with C1 - or is it not the same as a GTX780 ?
graphics cards are a nightmare!0 -
[quote="karen221" wrote:
the GTX780 Ti is the fastest on the site you pointed me at. is it compatable with C1 - or is it not the same as a GTX780 ?
graphics cards are a nightmare!
They are two different cards. We have tested the GTX780 and it works (and is very fast) in CO. I will suspect that the 780 ti works as well, but we haven't tried that specific model yet.0 -
I'm suffering with slow performance in c1 as my PC is getting on a bit and my current graphics card is not on the supported list so I assume I am not getting any benefit from OpenCL with it.
I don't really care about developing speed - as i just run the batch overnight. When doing adjustments in c1 my CPU is maxing out when i move from one image to the next and drawing masks on layers is very slow and jerky.
Would i expect to see a noticable performance improvement in those areas if i upgrade to - for example - a GTX780?
my PC spec is windows 7 64 bit, intel 8 core i7 CPU 860 @2.80GHz , 8GB ram. current graphics card: quadro FX580 512MB GDDR3.0 -
[quote="karen221" wrote:
I'm suffering with slow performance in c1 as my PC is getting on a bit and my current graphics card is not on the supported list so I assume I am not getting any benefit from OpenCL with it.
I don't really care about developing speed - as i just run the batch overnight. When doing adjustments in c1 my CPU is maxing out when i move from one image to the next and drawing masks on layers is very slow and jerky.
Would i expect to see a noticable performance improvement in those areas if i upgrade to - for example - a GTX780?
my PC spec is windows 7 64 bit, intel 8 core i7 CPU 860 @2.80GHz , 8GB ram. current graphics card: quadro FX580 512MB GDDR3.
It will be very noticeable with both adjustments and developing. Just remember that you might need a need power-supply to run the newer graphics cards.
Your current gfx card isn't used by CO because it does not have enough ram (1 gb is minimum)
You could also look into the ATI Radeon 79xx series. They have also just launched a seemingly very fast Radeon R9 series, but we have yet to test them with CO, so I cannot say if they work reliably with CO.
https://compubench.com/result.jsp?test=CLB401000 -
thanks - I'll check them out. 0 -
Since the 780 works, does the 760 work? There is quite a price difference between them.
Now I am running on a 260 and it all seems to work fine, but it could be faster on some adjustments.
😊0 -
well, i have a GTX780 on order...I'll let you know how it goes! 0 -
Initial results with the GTX780:
the good news - Huge improvement in developing speed. canon 5d3 files to jpeg in fraction of second. only tried it on a couple so far. On a single file, the activities window barely has time to show it before it is done.
the bad news - Not much noticable improvement on the areas I have the problem with ie - moving from one image to the next, zooming in, layer masks etc. I still get a very noticable pause and 'pop' when going to the next image and zooming. Drawing layer masks is better, but not great.
I have GPU-Z running to monitor the load on the graphics card. it flicks from 1% to about 2% or 3% when I move from one image to the next, and the CPU still maxes out. I seem to still be getting a 2-4 second delay until the image stabilizes. The pre-pop 'patttern' I see is different from before, but it doesn't seem any quicker to me. Similarly when zooming in to 100%.
The second time I zoom in on the same image does seem a bit quicker, but the GPU % doesn't change, so maybe there is some internal caching going on somewhere.
It appears the card is being used according to GPU-z, but not by very much.
Is this what I should be expecting, or is the card not fully compatable with c1?0 -
This is expected.
The GPU isn't used when zooming to 100% or when going through the collection, as the performance-gain would be in the milliseconds.
The operation that requires some computing is loading the raw from disk and parsing it (something that the GPU isnt very good at, which is why it is not used). As you noticed, this operation is quicker the 2nd time, because of caching.
If you run GPU-Z while continuously adjusting parameters or processing high resolution output files, you would see the GPU being used very intensively.0 -
Thanks for the info. That ties up with what I'm seeing when I played with it again yesterday.
Looks like I need a new CPU to make c1 go faster - which means a new motherboard as i'm already maxed out on what my current one will take!
back to the bank manager .......0
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