Sign in with
Sign up | Sign in
Your question

Crossfire issues with Sapphire Hd7970 vapor x, is CPU issue?

Last response: in Graphics & Displays
Share
April 27, 2013 8:52:25 PM

HI Folks
First things first, I would like to thank all the members for their relentless patience while i tied to learn my way through building a gaming desktop.

I have bought the parts and completed my first ever build yesterday and it is great. Something really great about putting all the parts together and then powering on and the system actually works hhehehe.

Specs:
CM storm trooper with window case
CPU I7 3770k
GPU, Dual Sapphire HD7970 Vapor-x 6gb edition in corssfire.
Motherboard ASRock Fatal1ty Z77 Professional Motherboard
16 Gb GDDR3 1888mhz
850w corsair tx power supply
250 gb samsun pro SSD
2tb seagate barracuda
windows 8 professional.
I have 3 1080p displays in eyefinity, however i do game on 1 at times.

My concern is as follows, While I run 3d mark I get a score of 9300 for a single GPU and then 14970 for crossfire. However when I go to play games there is virtually no FPS improvements, I tried, Crysis 1, Crysis 3 and batman AC and I can not get any improvements.

Crysis 3 for example on a single 1080 pm monitor with all maxed out settings gets me around 70 fps, however i do not get better with crossfire either, so when i go to multi monitor gaming its drops to under 30 FPS which is odd given that these GPUs aren't exactly cheap.

I am wondering if the CPU is the bottleneck, however thought the 3770 k was quiet advanced for purely gaming purposes.

Can you folks please advise your thoughts on what could be the issue.
ALso I have no idea how to overclock a CPU, if that might help.

Cheers

April 27, 2013 10:06:42 PM

Thanks Jack
Still not normal for dual hd7970's 6gb cards to barely make 60 frames on a single 1080 monitor.
Does anyone have any answers?
m
0
l
Related resources
April 28, 2013 3:27:14 AM

17seconds said:
How are you recording your FPS? Are you experiencing gameplay that feels less fluid?
This review reveals some issues with Crysis 3 showing that Crossfire does not scale well and plays well below 60 FPS.
http://www.pcper.com/reviews/Graphics-Cards/Frame-Ratin...




I am using fraps for FPS, some games a very stuttery such as Skyrim with just over 60 FPS maxed out. Battlefield 3 plays flawlessly with constantly being over 150fps and well into 200 fps very often.
Crysis 3 hovers between 35 and 65, which is disappointing given these cards cost quiet a bit, I could have gotten and gtx 690 for better performance.
Ah well, I guess i have to live and learn.
My question though, does the cpu have anything to do with this? could there be a bottleneck?
m
0
l
a c 620 U Graphics card
a b à CPUs
April 28, 2013 8:41:41 AM

Have you tried turning on VSync?
m
0
l
May 24, 2013 2:55:09 AM

I think that it is ok that you get 70 fps in crysis 3.
I have a Sapphire Radeon HD7970 3GB Vapor-x graphics card. I tried benchmarking with fraps in crysis 3 and I get 28-29 FPS.

P.S. Is the corsair power supply enough for running crossfire? I have a Corsair hx1050 (gold certificated (90% efficiency)) power supply.

Cheers!
m
0
l
May 26, 2013 1:30:39 AM

Viktoralexa said:
I think that it is ok that you get 70 fps in crysis 3.
I have a Sapphire Radeon HD7970 3GB Vapor-x graphics card. I tried benchmarking with fraps in crysis 3 and I get 28-29 FPS.

P.S. Is the corsair power supply enough for running crossfire? I have a Corsair hx1050 (gold certificated (90% efficiency)) power supply.

Cheers!


HI Mate
Yes the power supply is enough to handle crossfire. I have since traded the 2 HD7970'a for 2 gtx 680's which work a lot better despite lower vram.
m
0
l
May 27, 2013 12:19:06 PM

Since I've written you my last message, my computer started rolling Crysis 3 (1920x1080) at only an average of 14-15 FPS. I also tried playing World of Tanks with maximum settings (1920x1200) ( www.worldoftanks.eu ) and it runs at only 18 FPS (sometimes 8-9 fps) and my VGA card heats to about 67 degrees centigrade. Could anyone help me solve this problem? Where could this issue be coming from?
Thanks a lot in advance.
*Update* I tried testing in 3dmark 11 and I get the same scores. Could the above issue be because I only have 33 GB of 111 free space on my SSD drive C?
Cheers, Victor.

Cigloman said:
Viktoralexa said:
I think that it is ok that you get 70 fps in crysis 3.
I have a Sapphire Radeon HD7970 3GB Vapor-x graphics card. I tried benchmarking with fraps in crysis 3 and I get 28-29 FPS.

P.S. Is the corsair power supply enough for running crossfire? I have a Corsair hx1050 (gold certificated (90% efficiency)) power supply.

Cheers!


HI Mate
Yes the power supply is enough to handle crossfire. I have since traded the 2 HD7970'a for 2 gtx 680's which work a lot better despite lower vram.


m
0
l
!