Topic Title: Crossfire performance isuues
Topic Summary: FPS doesn't improve much or even decreases with crossfire enabled
Created On: 02/26/2013 01:08 PM
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 02/26/2013 01:08 PM
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funster58
Peon

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Joined: 02/26/2013

Hi everyone.

I'm having poor performance issues crossfire using an AMD A8-5600K/Sapphire HD6670 1GB PCI-E card.

The System's specs are:
Sapphire HD 6670 1GB GDDR5 PCI-E Graphics Card
AMD A8 5600K Black Edition 3.6GHz
Gigabyte GA-F2A85XM-D3H A85X Socket FM2 Mainboard
Seagate 1TB Barracuda 3.5" SATA-III Hard Drive - 7200RPM 64MB Cache
Kingston 8GB (2x4GB) DDR3 1600MHz HyperX Genesis Memory
CIT 750W Power supply
Microsoft Windows 8 64-bit

I based my choice of hardware on online reviews and benchmarks results.

Crossfire is enabled according to the Vision Engine Control Centre and the latest AMD drivers are installed. Windows is up to date. Otherwise all other hardware and system settings are unmodified.

I thoroughly benchmarked the system with several synthetic tools and several games prior to enabling crossfire. I then enabled crossfire and retested. The results are :

                                                     Before                       After

3DMark Vantage                        7386                          8306
3DMark 2006                             11995                        14175
3DMark 2011                             1794                          2203
PCMark 7                                    2682                          2687      
Unigine Heaven                         fps 35.5                    fps 29.4
                                                    Score 893                 Score 741
                                                    Min fps 19.8            Min fps 16.1
                                                    Max fps 68.8           Max fps 64

As you can see, apart from the Unigine scores, every benchmark has improved after enabling crossfire. (Although not as much as I was led to expect.)

With fps in games however, things are far from convincing.

                                                     Before                       After      

Dirt 3                                            75                             69      
Fraps Portal                                284                            300      
Fraps Skyrim                               54                              52      
Fraps Alan Wake                         49                              60      
Fraps Far Cry 3                           16                              18      
Fraps Sniper                               70                              48      
Fraps Aliens CM                          59                             54

As you can see, performance either drops or improves only minimally.

Is there anything anyone can recommend to help resolve these performance issues. This system is only a week old and I am already beginning to regret putting it together with these components.>>

Please advise.>>

funster58

 05/30/2013 09:33 PM
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M0n0LiF
Peon

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Joined: 05/30/2013

Hi, 

Possibly a CPU bottleneck, I have 2 x 7870 in crossfire with an Intel 3570k @ 3.8ghz and I suffer worse performance in some games that are CPU bound(bf3 multiplayer)

download MSI afterburner and monitor your cpu usage when gaming and see if its hitting 100% load, if it is its a CPU bottleneck and you will have to OC your chip to eliminate it.



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2 x Asus Directcu2 7870,16gb Corsair vengeance,Gigabyte Z77X D3H,Intel 3570k @ 4.3 ghz,Corsair TX850m

 05/30/2013 10:19 PM
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black_zion
80 Column Mind

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And you were expecting, what, miracles? A cheap HD 6870 or HD 7770 will blow that out of the water. Dual Graphics has issues.

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 05/31/2013 12:17 AM
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WMudrockJr
Overclocker

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I decided against Dual graphics myself. I used a single discrete GPU and when installed disabled my onboard 7660D. I play Far Cry 3, BioShock, Tomb Raider, and various NFS games all at the highest settings. Works great, like black_zion said there are issues. 

 



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AMD A10-5800K, XFX 7850 Ultra OC Edition 975MHz, 16GB RAM, Win 8.1 Pro 64 bit, MSI 7778 motherboard, 500W PSU, HP P7-1235, CCC 13.12 WHQL

 06/28/2013 11:28 AM
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Voodoo_S3
Peon

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I also get worse performance with crossfire enabled. 2x 7770 sapphire Oc vapor-X, Phenom II 965 @4Ghz, Nb@2400Mhz, Kingston Hyper-X 1600 8Gb, 990XA chipset. When crossfire's enabled on Bf3 I drop around 30Fps and each gpu is only being utilized around 30-40%, Cpu is at around 85-95%.

So is Cpu bottleneck the issue or is it something else, I've tried various driver + cap combinations and get the same result.

Would a FX6300 cpu solve my problem? or would I be better off getting a 7850 instead? or would my Phenom II bottleneck a 7850/ 7870?

 

EDIT: Just checked again after writing this, and on Bf3 the utilization is more like: Cpu 80-85%, each Gpu is at 25-35% and only getting around 30Fps. This could be enough to force me to stop buying AMD products.



Edited: 06/28/2013 at 11:49 AM by Voodoo_S3
 07/04/2013 03:14 PM
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RQuallsJR
Nerfed

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VOODOO_S3  Not all problems are AMD`s fault. Try running a program called Readon Pro,see if it makes a difference; Not all games work well in crossfire mode, try running bf3 with only one card I bet your fps will be higher. there are fixes out there you have to search for them. Blaming AMD every time something doesn`t work right is just wrong.



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Gigabyte MA790FXT-UD5P
AMD Phnome 2x4 955 Black 3.6GHz (O.C)
G.Skill 16Gig (4x4Gig)DDR3 1333 Dual ch.F3-10666CL7Q RIPJAWS-X
Asus 7770 2GIG 128Bit DDR5
CORSAIR 850tx 850Watt Power Supply
Cooler Master HAF932 ATX Case
Cooler Master V8 CPU cooler
Samsung DVD Burner Sata W/DL/lightscribe
Pioneer DVD burner USB W/DL/Lightscribe
2-WD 250 Gig HD
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Windows 7 Home Premium 64Bit

 07/07/2013 04:46 PM
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Voodoo_S3
Peon

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RQuallsJR I have an all AMD setup (990XA mobo, Phenom II 965, 2x HD7770), I expect AMD parts to work well together, whats wrong with that? Why should I need to run 3rd party software? Which doesn't really help for games that already have a crossfire profile. I've already tried RadeonPro before... no difference, I've disabled ULPS... No difference. Yes in Bf3 I do get higher and smoother fps by disabling crossfire but thats not really a solution.

 07/14/2013 08:31 PM
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ColbyS1994
Peon

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http://www.mcvuk.com/news/read/amd-promises-crossfire-fixing-new-drivers-on-july-31st/0117526

This looks promising.

I'm running crossfire on two Radeon HD 7700 series. I get decent FPS but on games like Far Cry 3, I notice it fluxuating constantly. On ultra settings I get anywhere from 30-40 FPS but because of the fluxuation is seems to stutter. I tried only running one card and got 20 FPS. Hopefully this new driver update will fix it but does anyone have suggestions in the meantime?

 07/14/2013 10:18 PM
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stumped
Wizard

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You might try disabling ULPS...here



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Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit


 


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 07/22/2013 06:03 PM
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UcouldBrong
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Consider yourself lucky to get that performance from 1Gb cards!



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Non-noob components.

 07/22/2013 06:07 PM
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UcouldBrong
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Originally posted by: ColbyS1994 http://www.mcvuk.com/news/read/amd-promises-crossfire-fixing-new-drivers-on-july-31st/0117526

 

This looks promising.

 

I'm running crossfire on two Radeon HD 7700 series. I get decent FPS but on games like Far Cry 3, I notice it fluxuating constantly. On ultra settings I get anywhere from 30-40 FPS but because of the fluxuation is seems to stutter. I tried only running one card and got 20 FPS. Hopefully this new driver update will fix it but does anyone have suggestions in the meantime?

 

You could overclock your cards slightly...manually adjust the fan speeds on the cards to accomadate the higher temps.  Overclock your cpu a bit (with due regard to properly cool it), too and compare.

 



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Non-noob components.

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