Yes over clocking the CPU definitely speeds up the ram bus, on top of which I have quad channel memory in just the four quad channel slots (4x8gb sticks 1600 MHz) on this mobo. If all ram slots are filled, the memory bandwidth is decreased dramatically, so it's a balance between speed, over clocking, price and capacity. 

As you can see by Danny's charts, Cuda performance is definitely gimped on the 680 vs the 580. I have a 580 3gb card in my secondary   render box that blows away the 680. Sadly it has no 3 monitor support so the 680 is in my main workstation. I'd highly recommend buying up a 580 or 590 on eBay as they are currently the best price / performance cards for Cuda right now. Not to mention easily overclocked out of the box with the manufacturers software.

On Wednesday, December 12, 2012, Robert Kjettrup wrote:

Hi

Just for fun i tried running my new 16core (32 threads) Z820 through some of these tests, and comparing it there also seems to be some odd numbers for your GPU in cineBench. I have the new Quadro K5000 that as far as i know is a lower clocked version of the GTX680 you have in your machine, but my OpenGL fps number are much higher. I only got the K5000 because i have had some bad experience with my former GTX card that just crashed the OpenGL driver when it was under load for longer periods. Would have gone with the GTX680 if i trusted the gamer cards more, but "known" stability was prioritised.

CineBench scores:

OpenGL 81.45 fps

CPU 25.07 pts

And running GeekBench (the free 32bit version) i can see that Teddy has some impressive memory numbers, higher than i get. Is the memory linked to the CPU clock frequency also? 4.5Ghz is a bit higher than my 3.1Ghz :-D

Integer Processor integer performance 32414

Floating Point Processor floating point performance 42123

Memory Memory performance 7071

Stream Memory bandwidth performance 8585

Geekbench score: 28360

not to show off, but i thought some of you guys would like to see the numbers of the current top of the line intel xeon

well, but i also guess that this machine has cost ALOT more than what you spent on yours. Intel/HP sure know how to price their current highend stuff :-)

- Robert

2012/12/9 lsslss <info@lsslss.nl>

hi Teddy,

 

yes you are right, it's at 1600MHz with latency 11 CLK at the moment, while it should be at 9.

I'm going to figure out how to change that, will have set the voltage to manual probably in the BIOS.

 

don't know if enabling the IOMMU will do anything for the speeds...

 

kind regards,

 

Marcel van Berk

 

Hoge Bomen/LSSLSS

info@lsslss.nl

 

www.lsslss.nl

 

Van: After Effects Mail List [mailto:AE-List@media-motion.tv] Namens Teddy Gage

Verzonden: zondag 9 december 2012 21:11

Aan: After Effects Mail List
Onderwerp: Re: [AE] 32core benchmarks

 

not bad, but I may have spotted one of your bottlenecks: your ram memory performance and bandwidth are less than a third of the scores on my machine, you may want to check that your ram timings and voltage are correct in your bios. My RAM is 32 gb 1600 MHZ 7-7-7-20

intel core i7 3930K hex core @ 4.5 ghz

Section	Description	Score	Geekbench Score
Geekbench 2.4.0 Tryout for Windows x86 (32-bit)
Integer	Processor integer performance	17354	16973
Floating Point	Processo

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