OTOY Forums

Ah ok thnx

7.51 is really impressive. I think that with a waterblock 9ms/s is possible with low temps (about 40C). My 2x680 (watecooled, oveclocked) gives 8.08ms/s.

brasco,
thanks for the great test.
One thing I would like to know is the exact energy cosumption.
Could you test one thing.
Plug in only the 580, then measure the watt consumption under Pathtracing with a watt meter (simple energy plug).
Then adding the Titan and measure again.
That would be cool.
Cheers

smicha wrote:What is the max voltage for titan ? Can you show the "voltage and tweaks" screenshot?

Nvidia say it's 1.1625v and there's a max +38Mv in the Voltage and Tweaks popout. I've not touched it though, it's all done dynamically.

Refracty wrote:brasco,
thanks for the great test.
One thing I would like to know is the exact energy cosumption.
Could you test one thing.
Plug in only the 580, then measure the watt consumption under Pathtracing with a watt meter (simple energy plug).
Then adding the Titan and measure again.
That would be cool.
Cheers

Hi, I don't currently have a watt meter, I've been meaning to order one, if or when I do, I will report back.
The EVGA 580 is a Classified I have is a very power hungry card (2x8-pin + 1x6-pin) and running both on a 1Kw supply is fine at the moment

Guru3D have an overclocking review and has a pretty good comparison:
http://www.guru3d.com/articles_pages/ge ... ide,3.html

Titan's power usage is pretty amazing for such a large chip.

cheers
brasc

Let me add some power consumption test for GTX 680 4gb:
system at idle 177-185W,
rendering with single GTX680 - 285-300W,
rendering with 2xGTX680 - 395-467W

brasco wrote:Yes, it seems Titan was made for this sort of workload, you'll still get a good price for the 690 btw, it's the top nvidia card in all the gaming benches.

Bit off topic, does anyone have a K20X at hand to compare? I'd be curious to see if Nvidia have protected the Teslas with their drivers or the like. I know OpenCL is broken in the current Titan drivers (Photoshop crashes a lot...), but they're supposed to be working on a fix.

cheers
brasc

Hey Brasco,

See my post earlier in the thread (Page 4) -- Tesla's seem to be more for brute force simulation than rendering.

Mikel

sorry to be slightly off topic, but am I the only one who is getting virtually no speedup from v1 - 1.11?

running a gtx580 with the 310.90 drivers

v1 3.55 Ms/s
v1.11 3.65 Ms/s

I really need a titan methinks

darkline wrote:sorry to be slightly off topic, but am I the only one who is getting virtually no speedup from v1 - 1.11?

running a gtx580 with the 310.90 drivers

v1 3.55 Ms/s
v1.11 3.65 Ms/s

I really need a titan methinks

I think the speedup for the 5.xx series is less than the 6.xx series.
I got the same speedup for my 580

interesting, so the 680 may have caught up with the speed of the 580 now. Might be time to switch to kepler finally.

mikelmnj wrote: Hey Brasco,

See my post earlier in the thread (Page 4) -- Tesla's seem to be more for brute force simulation than rendering.

Mikel

Great stuff, thanks Mikel.

Regarding the mention of the Titan not being great for VFX sims, I use Turbulence FD for Cinema 4D and I've done some extensive testing over the weekend, results were interesting.
In quite a few scenarios I've seen 50%+ improvement on my 580, in some where the sim isn't highres enough to occupy all the cores, it's only on par, if not worse than the 580.
The base clock only boosts when it sees the card at a higher usage, with 50% of the cores or less, it doesn't boost at all so I bet the lack of Hyper-Q causes that.

Octane seems to have been tuned for 100% occupancy so as soon as I let octane suck up the GPUs the Titan boosts to max clock immediately.

darkline wrote:sorry to be slightly off topic, but am I the only one who is getting virtually no speedup from v1 - 1.11?

running a gtx580 with the 310.90 drivers

v1 3.55 Ms/s
v1.11 3.65 Ms/s

Hi Darkline,
I get a tiny boost with the GTX580 also:

1.10 - 3.77 Ms/s
1.11 - 3.80 Ms/s

So it looks like 1.11 has concentrated on Kepler optimisation.
And yes, you need a Titan in your life - I'm already eyeing up a second!

cheers
brasc