Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > Desktops > Mac Pro

Reply
 
Thread Tools Search this Thread Display Modes
Old Jan 9, 2013, 10:29 PM   #1
jenzjen
macrumors 68000
 
Join Date: Aug 2010
Installed 7970, confused about speed vs 5870

I installed an MSI Lightning 7970 to replace my dual card - Apple 5870 and 5770 - setup, but I'm not seeing any noticeable speed improvement. Am I missing something, did I run the wrong test, or is there something else limiting the output?

Most of my use is under Windows/Bootcamp, so for a quick test, I timed how long the 5870 and the 7970 took to thumbnail ~150 home movie files (720p/1080p AVC HD files) when opening the folder in Windows Explorer - both setups took the exact same time.

On an older machine that went through an upgrade, this test produced a noticeable difference between the cards.

I do not have an external PSU and am using two 6-8 pin connectors to power the card, deleted old drivers and installed new ones.

I know there is a long thread about the possible damage after someone installed a 7970 in a heavy use environment but figured my usage does not come close to stressing the card.
jenzjen is offline   0 Reply With Quote
Old Jan 9, 2013, 10:52 PM   #2
SDAVE
macrumors 68020
 
Join Date: Jun 2007
Location: Nowhere
WHAT are you trying to do?

Run a most recent game and compare the results. Or a 3d application which uses OpenGL, such as Cinema 4D.

Who cares about Geekbench, etc.
__________________
iPhone 5, MacBook Pro (2011), Mac Pro 2008, Apple Cinema Display 30" Aluminium
SDAVE is offline   1 Reply With Quote
Old Jan 9, 2013, 11:13 PM   #3
jenzjen
Thread Starter
macrumors 68000
 
Join Date: Aug 2010
I don't care about benchmarks either, and I spend too much time working so it is worth it for me if I can significantly speed up time spent interacting with these movie files. I didn't know if it was just something inherent in Windows or Explorer that made my quick test fall on its face.
jenzjen is offline   0 Reply With Quote
Old Jan 9, 2013, 11:52 PM   #4
SDAVE
macrumors 68020
 
Join Date: Jun 2007
Location: Nowhere
GPU will not make any of your thumbnails show up faster.

It will help you with 3D programs more than anything.
__________________
iPhone 5, MacBook Pro (2011), Mac Pro 2008, Apple Cinema Display 30" Aluminium
SDAVE is offline   3 Reply With Quote
Old Jan 9, 2013, 11:59 PM   #5
monkeybagel
macrumors 6502a
 
monkeybagel's Avatar
 
Join Date: Jul 2011
Location: United States
Quote:
Originally Posted by jenzjen View Post
I don't care about benchmarks either, and I spend too much time working so it is worth it for me if I can significantly speed up time spent interacting with these movie files. I didn't know if it was just something inherent in Windows or Explorer that made my quick test fall on its face.
An SSD and faster CPU may help generate the thumbnails faster, but a GPU would not. How much RAM do you have?
monkeybagel is offline   2 Reply With Quote
Old Jan 10, 2013, 08:27 AM   #6
jenzjen
Thread Starter
macrumors 68000
 
Join Date: Aug 2010
Actually, it solved itself. As soon as I started doing normal work, the machine froze up twice so am back to the dual cards.

Maybe the other poster that installed a 7970 had more luck since his card seemed to be less power hungry 6+8 pin (vs mine dual 8 pin), but then he mentions processing 4k video (vs me with open browsers, some office apps) so his workload is clearly > mine.

Machine is the 6 core w/a SSD and 24Gb of ram driving 3 27" ACD - no other PCI or USB devices installed.
jenzjen is offline   0 Reply With Quote
Old Jan 10, 2013, 08:36 AM   #7
All Taken
macrumors 6502a
 
Join Date: Dec 2009
Location: UK
Quote:
Originally Posted by jenzjen View Post
Actually, it solved itself. As soon as I started doing normal work, the machine froze up twice so am back to the dual cards.

Maybe the other poster that installed a 7970 had more luck since his card seemed to be less power hungry 6+8 pin (vs mine dual 8 pin), but then he mentions processing 4k video (vs me with open browsers, some office apps) so his workload is clearly > mine.

Machine is the 6 core w/a SSD and 24Gb of ram driving 3 27" ACD - no other PCI or USB devices installed.
Did you do a SMC and PRAM reset after replacing the cards? I had to do this with my GTX 680.
All Taken is offline   0 Reply With Quote
Old Jan 10, 2013, 08:46 AM   #8
jenzjen
Thread Starter
macrumors 68000
 
Join Date: Aug 2010
SMC yes, PRAM no.

Card was stable last night (though only played around with photos, thumbnails) but started crashing this morning as started work, not terribly stressful but multiple browsers, Word, Excel and Access.
jenzjen is offline   0 Reply With Quote
Old Jan 10, 2013, 08:56 AM   #9
All Taken
macrumors 6502a
 
Join Date: Dec 2009
Location: UK
6pin and 8pin?
All Taken is offline   0 Reply With Quote
Old Jan 10, 2013, 10:04 AM   #10
jenzjen
Thread Starter
macrumors 68000
 
Join Date: Aug 2010
Quote:
Originally Posted by All Taken View Post
6pin and 8pin?
Yes, here (http://forums.macrumors.com/showthread.php?t=1505726) OP uses a XFX that has 1 6 pin and 1 8 pin (requires min 500w supply).

I didn't realize this when I ordered it, but the MSI has 2 8 pin and requires a minimum of 650w hence why my machine stalled.

I want a card that can drive 3-4 Apple 27" natively so ruled out the XFX since it has 2 mini DP vs MSI 4 mini DP.

Thinking the best I could do is get the XFX plus some adapters to drive the 3rd 27" ACD off the DVI port or live with the dual card setup.
jenzjen is offline   0 Reply With Quote
Old Jan 10, 2013, 10:50 AM   #11
brentsg
macrumors 68020
 
brentsg's Avatar
 
Join Date: Oct 2008
It doesn't sound like you do anything that can benefit from this upgrade. From your posts it seems like a waste of money, so you should probably stick with your corrent cards.
brentsg is offline   0 Reply With Quote
Old Jan 10, 2013, 11:49 AM   #12
ActionableMango
macrumors 68040
 
ActionableMango's Avatar
 
Join Date: Sep 2010
Quote:
Originally Posted by brentsg View Post
It doesn't sound like you do anything that can benefit from this upgrade. From your posts it seems like a waste of money, so you should probably stick with your corrent cards.
I have to agree. 7970 is a 3D acceleration powerhouse. OP's use sounds like a huge waste of a 7970, which is actually causing problems and not helping at all.
ActionableMango is offline   0 Reply With Quote
Old Jan 10, 2013, 12:37 PM   #13
DanielCoffey
macrumors 65816
 
DanielCoffey's Avatar
 
Join Date: Nov 2010
Location: Edinburgh, UK
Can you temporarily run the card from an external PSU to see if it works when powered properly?
DanielCoffey is offline   0 Reply With Quote
Old Jan 10, 2013, 01:58 PM   #14
jenzjen
Thread Starter
macrumors 68000
 
Join Date: Aug 2010
Quote:
Originally Posted by brentsg View Post
It doesn't sound like you do anything that can benefit from this upgrade. From your posts it seems like a waste of money, so you should probably stick with your corrent cards.
Right, definitely not seeing much benefit for my uses was really hoping for something to just up the overall every day stuff.

Unfortunately, don't have access to external power.
jenzjen is offline   0 Reply With Quote
Old Jan 10, 2013, 02:12 PM   #15
goMac
macrumors 603
 
Join Date: Apr 2004
Quote:
Originally Posted by jenzjen View Post
Right, definitely not seeing much benefit for my uses was really hoping for something to just up the overall every day stuff.

Unfortunately, don't have access to external power.
A 7970 isn't going to show much improvement for every day stuff over the 5870. Stuff like an SSD would.
goMac is online now   0 Reply With Quote
Old Jan 10, 2013, 03:15 PM   #16
handheldgames
macrumors 6502a
 
handheldgames's Avatar
 
Join Date: Apr 2009
why not go with the 7950?
__________________
2009 MacPro i7-990x, XP941 SATA Express Boot, 32GB RAM, AMD 7950/GTX 680, Seiki 4k, Dual 30" Dell 3007wfp-hc, VelocityX2-Samsung840, FrescLogic USB3, Software Developer/Hardware Designer
handheldgames is offline   0 Reply With Quote
Old Jan 10, 2013, 03:19 PM   #17
All Taken
macrumors 6502a
 
Join Date: Dec 2009
Location: UK
Quote:
Originally Posted by handheldgames View Post
why not go with the 7950?
Would it change the operators question?
All Taken is offline   0 Reply With Quote
Old Jan 10, 2013, 04:07 PM   #18
MacVidCards
macrumors 601
 
Join Date: Nov 2008
Location: Hollywood, CA
 
It would likely fix the crashing.

When Mac Pro senses too high a draw, it will shut down.

7950 is Dual 6 pin, no need for those dicey 6 to 8s.
MacVidCards is offline   0 Reply With Quote
Old Jan 10, 2013, 04:25 PM   #19
All Taken
macrumors 6502a
 
Join Date: Dec 2009
Location: UK
Quote:
Originally Posted by MacVidCards View Post
It would likely fix the crashing.

When Mac Pro senses too high a draw, it will shut down.

7950 is Dual 6 pin, no need for those dicey 6 to 8s.
The 50 watts difference in maximum power consumption isn't enough to cause system instability.
All Taken is offline   0 Reply With Quote
Old Jan 10, 2013, 04:42 PM   #20
MacVidCards
macrumors 601
 
Join Date: Nov 2008
Location: Hollywood, CA
 
Take a moment and read the thread.

The card he got uses 2 @ 8 pins.

So power deficit is 150 Watts.

I can get my 2009 to shut off by running Furmark and using a SINGLE 6 to 8 on a GTX580.

He was using 2 of them.
MacVidCards is offline   0 Reply With Quote
Old Jan 10, 2013, 06:48 PM   #21
jenzjen
Thread Starter
macrumors 68000
 
Join Date: Aug 2010
Admittedly, I'm a corner case since I'm running Windows over 3-4 27" ACDs (Atlona DP 400 only pushes 720p under Windows) so anything with DVI doesn't help.

Nvidia doesn't have enough mDP on the newer GTX leaving ATI, but the power required for ATI cards with >2 mDPs require an external PSU.

That leaves me with upgrading from my current 5870/5770 to likely the 7870/7770 if I want to stay within stable power use, but after all this, the improvement is probably negligible at best.
jenzjen is offline   0 Reply With Quote
Old Jan 10, 2013, 07:11 PM   #22
ActionableMango
macrumors 68040
 
ActionableMango's Avatar
 
Join Date: Sep 2010
Quote:
Originally Posted by jenzjen View Post
Admittedly, I'm a corner case since I'm running Windows over 3-4 27" ACDs (Atlona DP 400 only pushes 720p under Windows) so anything with DVI doesn't help.

Nvidia doesn't have enough mDP on the newer GTX leaving ATI, but the power required for ATI cards with >2 mDPs require an external PSU.

That leaves me with upgrading from my current 5870/5770 to likely the 7870/7770 if I want to stay within stable power use, but after all this, the improvement is probably negligible at best.
7870 Eyefinity 6? It has 6 MDP ports and uses 2x6 power connectors in a single card. I have no idea if it works in OS X though.
ActionableMango is offline   0 Reply With Quote
Old Jan 10, 2013, 09:40 PM   #23
jenzjen
Thread Starter
macrumors 68000
 
Join Date: Aug 2010
Quote:
Originally Posted by ActionableMango View Post
7870 Eyefinity 6? It has 6 MDP ports and uses 2x6 power connectors in a single card. I have no idea if it works in OS X though.
Question for those more knowledgeable w/drivers than me - since it looks like 10.8.3. will support 79xx drivers natively, any reason the suggested card 7870 Eyefinity 6 would not work?
jenzjen is offline   0 Reply With Quote
Old Jan 10, 2013, 11:59 PM   #24
brentsg
macrumors 68020
 
brentsg's Avatar
 
Join Date: Oct 2008
Why do you want a new card?
brentsg is offline   0 Reply With Quote
Old Jan 11, 2013, 01:34 AM   #25
derbothaus
macrumors 601
 
derbothaus's Avatar
 
Join Date: Jul 2010
OP: What cards had a noticeable impact on icon view creation? I ask because a 5870 and a 7970 are so far out there in performance for OS elements you can't really go faster (they would appear relatively the same and both are probably idling at like 100MHz to save power) with HD and CPU bottlenecks even if you were leveraging GPGPU on the action.
__________________
Mac Pro W3680, GTX 680, 12GB DDR3, SSD; MBP, 2.6GHz Core i7, 16GB DDR3, SSD; Eizo fs2333
derbothaus is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Desktops > Mac Pro

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
REVIEW: 7950 Mac Edition vs Apple 5870 vs MSI 7970 (Pics) 100Daily Mac Pro 71 Jan 1, 2014 11:11 AM
installed 10.6.8 on a 2011 Mini - Thunderbolt and speed fixes? patent10021 Mac mini 6 Jun 7, 2013 04:28 PM
5870 Signal but then no signal? confused. WhiteIphone5 Mac Pro 6 Feb 4, 2013 03:34 PM
Help! Macbook Pro Ram installed at Wrong Speed Ozes MacBook Pro 12 Aug 20, 2012 06:38 AM
Apple 5870 + PC 5870 for Cross firing? revilate Mac Pro 6 Jun 28, 2012 12:45 AM

Forum Jump

All times are GMT -5. The time now is 04:54 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC