[David Pirinelli]

https://www.barefeats.com/gputitan.html

Sadly he didn’t include a Resolve test this time, but you can use the CUDA scores to get an idea. 1 Titan = 2 @ 680. Helps cut down on cards needed.

580 vs 680 for GUI?

Wow, I doubt you will notice a huge difference, but you will probably find 580 a touch faster. The one we sell for internal power use has been detuned a bit from the ones Rob tests (He tests the “Classified” version)

[David Pirinelli]

https://www.ebay.com/itm/261274049749?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

It can run 3 digital displays at once.

Quite an improvement over GT120.

BTW, we are about to close for 1 week.

Friday the 30th will be out last day open until September 9th.

[David Pirinelli]

GTX780 makes great internal powered card.

I have purchased a couple licenses for “Hardware Monitor” Pro version.

I have found that GTX780 is within 10 watts of GTX570 during After Effects render.

It is 20 Watts BELOW GTX570 if running Furmark in OSX.

GTX780 with or without a GT640 EFI GUI is going to be new best setup for Resolve for those w/o expander.

[David Pirinelli]

OK, spent weekend testing.

Sad to say, the Titan is probably NOT going to be an internal powered card as is.

I am going to try some things with other power connectors inside.

Fortunately I have a 5,1 MP that I killed #1 slot in from testing cards. So I can put Titan in slot 2 and if I blow up machine, so be it.

I have ordered 3 licenses for “Hardware Montior” as it should display current draw.

Let me just say this, my current “does it draw too much” test is Furmark from “GPUTest_GUI”

Even with a GTX570 it is possible to kill my 3,1 by running this at full screen.

The 780 has completed ever run, never a hiccup.

When I loaded it up with Titan, as soon as it got to place where it should start rendering the screen, the 4,1/5,1 clicked off. Never even started the process, just gave up at open.

Which is odd because the cards are similar with titan having more shader units and obviously TWICE the GDDR5 to power.

I spent hours playing Crysis 3 and Dishonored. I used 780 & Titan internally powered and neither one ever had any issues.

But the combination of it quitting Furmark and a thread I read here at CC make me believe that additional power is going to be only long term answer. There is a thread here where someone was running a Titan and it would periodically KILL the entire machine when pressed.

I am unable to make machines have issue with GTX780 so I am going to cautiously ship a couple of the first orders.

The Titans I will continue to list as “External Power Only” until I can find a safe, reliable way to power them.

The pity is that nobody has ever made a PCIE slot power extractor. There is 75 watts run to each PCIE slot. That happens to be the amount we need to make Titan stable.

When I return from Bay area trip, I am going to see about putting together a kit with 2 @ Titans or 780s along with the ODD Booster X5 power supply, along with needed bits and an install manual.

Not exactly Turn-Key, but it will offer a way to end up with a Mac Pro running more CUDA horsepower then can easily be imagined.

[David Pirinelli]

Paul, the biggest drag for me is no problem at all for you, I have a 4,1, so I had to deal with lidless vs lidded CPUs.

For you, having the long handled 3mm wrench and thermal paste is only thing to worry about.

I got an Elkind 3mm wrench for like $8 on Amazon, took 1 day as the tool co was here in CA.

It is literally 100% easier on a real 5,1.

[David Pirinelli]

I did, it wasn’t fun but it worked.

I ran the 4,1 to 5,1 patch and bought 3 @ 8 GB 1333Mhz RAM sticks

I got the 5680s used on Ebay for $750/each.

Much easier putting a 3690 in a Quad Core, as there is almost no way to mess it up.

[David Pirinelli]

I have been running 780 from internal power on a 3,1 with Dual Quad 3.2 and in my experience it has weaker PSU than 4,1/5,1.

Tonight I am going to try both cards in 12 Core 5,1 (Dual 3.3 Hex 5680s) and see how internal power holds up.

My feeling is that Titan will require external power unless down clocked and undervolted. The test I use in 3,1 is Furmark for OSX. If a card draws too much power it will shut the entire machine down during the test with a rather loud CLICK from power supply.

I have run it with 780 and it got through to the end. Will be doing some graphics intense stuff tonight. Have to finish 2nd Titan ROM to test card. My “other half” of software team has 1st Titan but he is in St. Petersburg and uses external power in a 3,1 for it.

[David Pirinelli]

780 blows 680 out of the water, especially in CUDA area

I will be sending Barefeats a tester unit and he will post independent benchmarks.

I can tell you this, I ran a quick After Effects Ray Trace test from MR and here are some basic numbers that give you an idea:

GTX 480 7:01
GTX 580 6:22
GTX 680 7:08
GTX 770 6:44
GTX 570 6:55
GTX 780 4:37
GTX Titan 4:03

In 10.8.4 there is still no OpenCl support but it is present in Betas of 10.9.

I imagine that Resolve numbers will follow similar pattern.

Ideally someone in LA will grab one from me next week and post there independent results.

I have business in Bay area from Sep 1-7 so I will only do a few cards next week and let the word spread before I return from up north. Will get one or both to Barefeats before I go as well.

[David Pirinelli]

We have single slot 640s, awesome little card.

Have 3 more coming in on Monday.

[David Pirinelli]

Some people like bootscreens, let’s you leave out a GUI card if short on slots.

Also, on a 3,1 Mac Pro, any and all non-EFI cards run at 1/2 bus speed in OSX and Windows. You can see this easily in CUDA-Z. (or use lspci)

On a 4,1 and 5,1 the 10.8.3 and later drivers fix the bus speed in OSX but have no effect in WIndows, still 1/2 bus speed. So if you ever cross boot into Windows you will work at PCIE 1.0 speed.

If these things don’t affect or concern you, sounds like regular cards will work out well for you.

As far as flashing one yourself, the 780 and Titan are not DIY like a 680 is.