OTOY Forums

What are you getting with two 590s? Thats about 600-800 cuda cores right?

Now I am thinking two generic GTX 780 (about $1000) should do better than a single 780 ti, or single titan. Anyone run the benchmark on GTX 780 3GB? From the database I'm seeing a linear growth in performance.

in bechmark i get a solid 14

thats with 2x 1024 cc`s

Just installed the 2 GTX 780Ti Gigabyte OC ( factory @ 1137 mhz ) and i obtain:
16.82
pathtracing, without alpha shadows

On my gaming Laptop (ASUS 750G), featuring a GTX 770M, I get about 1.73Ms/sec, following the load Scene/Change alphashadows and path lighting from page 1 of this thread.

vipvip wrote:Just installed the 2 GTX 780Ti Gigabyte OC ( factory @ 1137 mhz ) and i obtain:
16.82
pathtracing, without alpha shadows

That's awesome! Thanks for sharing Vipvip. Looks like the 780 TI's are the business right now. I'd love to see them with 6GB RAM. It would be interesting to see what 2014 brings...

Seeker

Seekerfinder wrote:

vipvip wrote:Just installed the 2 GTX 780Ti Gigabyte OC ( factory @ 1137 mhz ) and i obtain:
16.82
pathtracing, without alpha shadows

That's awesome! Thanks for sharing Vipvip. Looks like the 780 TI's are the business right now. I'd love to see them with 6GB RAM. It would be interesting to see what 2014 brings...

Seeker

So it's 3% faster than my overclocked watercooled TITAN (8.14) - nice. But 6GB is a killer.

There are rumors about 790 .....

smicha wrote:

Seekerfinder wrote:

vipvip wrote:Just installed the 2 GTX 780Ti Gigabyte OC ( factory @ 1137 mhz ) and i obtain:
16.82
pathtracing, without alpha shadows

That's awesome! Thanks for sharing Vipvip. Looks like the 780 TI's are the business right now. I'd love to see them with 6GB RAM. It would be interesting to see what 2014 brings...

Seeker

So it's 3% faster than my overclocked watercooled TITAN (8.14) - nice. But 6GB is a killer.

There are rumors about 790 .....

Smicha,
Noob question here... does overclocking your GPU actually make a difference in Octane, or is it still only the amount of cores that count? When overclocking, is it the speed of those cores being overclocked or something else?
Seeker

Yes - OC does have an impact on Octane speed. But GPU must be well cooled. And I don't exceed the default max voltage - 1.2V. I read on an Overclock.net forum that some guys set (modified titan bios) voltages even up tp 1.5V. So 1.2V is safe. So my titan is well watercooled - 25C idle, 41C - load. I can increase memory clock max +500mhz, and core +200mhz, which gives roughly 15% overclock. But usually I work on default settings.

If you mean a comparison to 780Ti which has about 200 cuda cores more - as we see from the tests - it also affects the rendering speed.

smicha wrote:Yes - OC does have an impact on Octane speed. But GPU must be well cooled. And I don't exceed the default max voltage - 1.2V. I read on an Overclock.net forum that some guys set (modified titan bios) voltages even up tp 1.5V. So 1.2V is safe. So my titan is well watercooled - 25C idle, 41C - load. I can increase memory clock max +500mhz, and core +200mhz, which gives roughly 15% overclock. But usually I work on default settings.

If you mean a comparison to 780Ti which has about 200 cuda cores more - as we see from the tests - it also affects the rendering speed.

Thanks for the info Smicha! That's great!
(yes, I meant cuda)
Cheers,
Seeker

Hi All-

Inspired by Boris with his seven Titans with the Netstor enclosure I give you the same madness. Boris assured me his Netstor box worked as promised. I ordered mine a few weeks ago and it showed up today. I had to raid another machine for the extra Titans because I haven't ordered them yet. I guess it's time to do that.

Anyway, this is just up but it's running smooth with the 327 drivers. I got about a 42ms in PMC. I'll take it. So nice to have power like this.

Time to put these back behind the desk again...

Happy Holidays!!

alec