Can't compete with used Intel server parts.
Build a rig for what the new CPUs cost.
And they crunch just as well.

We took 6th in the PG challenge
We took 4th and 12 points in the milkyway sprint.
 
Good job ladies and gents!

Nice addition yatz.  I picked up a 2x E5-2670 setup from Natex when they had the deal.  Very happy with it.

POTM is open for September.
POTM thread updated.

Anyone know if the GTX780 and/or the 780Ti had DP or was it just the titans?

bill1024
Anyone know if the GTX780 and/or the 780Ti had DP or was it just the titans?

The 780 Ti is physically locked at 1:24 FP32.
https://arrayfire.com/exp...4-performance-on-gpus/

Thanks spongebob

bill1024
Anyone know if the GTX780 and/or the 780Ti had DP or was it just the titans?

 Pretty much ANY recent-generation discrete GPU has FP64 capability - BUT:
 
 On consumer cards, the top FP64 performance was team Red - the Tahiti based cards like the 7950/7970 and R9 280/280x - and to a lesser degree the Hawaii cards like the R9 290/290x/390/390x.
 This also applies to the 7990 (dual Tahiti IIRC) and R9 295x (dual Hawaii IIRC).
 They have better FP64 performance than any of the Titan line as I recall (definitely higher than the Maxwell or Pascal Titan line members, not 100% sure on the Kepler-based Titan).
 Current Pascal cards seem to have comparable FP64 performance to current RX cards - but I don't remember any of them achieving even HALF the performance on FP64 of the Tahiti (even the 1080ti or Vega).
 
 For higher FP64 performance, you have to go to some of the Quadro or specific members of the Firepro EXPEN$IVE workstation lines (but NOT the WX series as those used the same GPUs as consumer cards).
 

The Titan 6gb and Titan Black are DP beasts
They can do 10 Milkyway tasks at a time.
My R9-280x not so much, maybe 2 or 3, about the same as my Gtx 980Ti
The 280x is better than the GTX970 and close to the 980Ti not as good as the 1080Ti
Maybe because of the raw performance and power/speed of the newest Nvidia cards.
 
Either way not going to spend a bunch of $$ for just a couple projects we hardly ever run.
If one falls in my lap, I'll use it.....
 
 
Lets keep TX and LA in our thought and prayers.
 

Turns out I was wrong about the Kepler-based Titans - they have anywhere from 1.3 to 1.7 the FP64 performance of the R9 280x on FP64 - but I did say I was "not 100% sure on the Kepler-based Titans".
 
 R9 280x (and the 7970, same GPU after all) are capable of a bit over 1000 FP64 Mflops, the Kepler-based Titans range from 1300 to a bit over 1700.
 The Titan Z was a dual-core monster, at 3400 - but it's more fair to compare it to the ballpark 2000 of the 7990 which was also a dual-core monster.
 
 So yeah, they're monsters - but I'm not sure if they were counted as "consumer" cards at the time.
 
 The 1080ti and Pascal Titans are under 400 MFlops, the 980ti and Maxwell Titan are under 200 - those are all beat NARROWLY by the RX 480/580 at a little OVER 400 MFlops as I recall....
 
 Those numbers are out of the OFFICAL specs for AMD and NVidia, but are pretty closely confirmed in the table at http://www.geeks3d.com/20140305/amd-radeon-and-nvidia-geforce-fp32-fp64-gflops-table-computing/
 
 Note that a LOT of workstation class cards exceed 2000 GP64 MFlops - they're just EXPEN$IVE even now if you can find them used....