gtx1080 crysis slow

DavidGenge

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Feb 11, 2017
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I have replaced my dying 7 year old Radeon HD5970 with an NVIDEA STRIX-GTX1080.

The Radeon ran Crysis at 5760x1200 resolution, Medium quality: 40 to 60 fps, High: 20 to 30fps.
(with no GPU or CPU overclocking).

NVIDEA runs Crysis perfectly in Highest quality at 1920x1200, very smooth and fast but...
at 5760x1200:
Crysis splash screen with EA logo etc. is blank.
The menu interface crawls onto the screen in slow motion and the mouse is sluggish.
When I start a game the screen is full and looks great but...
I cannot get more than about 5fps during game play in any multi monitor resolution or quality level.
GPU Tweak II indicates both GPU usage and VID usage at 0 or 1%.

Anyone any ideas about how to setup the new card to get the expected 5760x1200 performance?

System:
OpSys: Windows 7 64bit
Mboard: ASUS P6T Deluxe V2
C: drive: 128gb solid state
CPU: Intel® Core™ i7-920 Processor
RAM: 6gigabytes DDR3
Keyboard Lenovo USB
Mouse: Logitech USB cordless
Power: Corsair HX1000, 1,000watts
Monitors: 3 x Samsung SyncMaster2443, 1920x1200, DVI
Video: NVIDEA STRIX-GTX1080 (requiring 2 DisplayPort to DVI adapters)
Chassis: Raven Multi-RV01
 

chef7734

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No his cpu is not the problem. The 6gb of ram would be far more the problem than his i7 920 would be. I would also be concerned about proper removal of old video drivers.
 

chef7734

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Here is why. He would be getting at least these if the cpu was bottlenecking the 1080. "The Radeon ran Crysis at 5760x1200 resolution, Medium quality: 40 to 60 fps, High: 20 to 30fps.
(with no GPU or CPU overclocking)."

Coming from experience with currently running an x58 system and modern gpu, I can say the i7 920 is quite capable of running a 1080. About two months ago I was running a i7 950 with a 1070 and getting amazing frame rates at 1440 in all modern games maxed out. Granted it is less pixels than he is running, but prior to that I was running gtx 580's @ 5760x1080 with no problem. Now I am running sli 1070 with a xeon oced and all is still great.
 

chef7734

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If the cpu was bottlenecking you would at least be matching the last video card results. He is getting much less, which is showing there is a problem somewhere.
 

chef7734

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He ran his first vid card at both high and medium.
Medium quality: 40 to 60 fps, High: 20 to 30fps
he is only getting 5fps no matter what settings.

Just for the record. If his cpu was bottlenecking his 1080 then my cpu would be bottle-necking my sli. I just ran crysis 3 max settings and getting close to 100 fps on 1440p.

The term bottleneck gets thrown around way too much and most people dont truly understand what it is. A bottleneck is when a component such as a cpu creates a chock point in performance where no further upgrades will results in a change in performance. Ie you would have a gtx 1080 and a 970 in the same system and they would perform the same because the cpu was bottle-necking the 1080.
 

DavidGenge

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Feb 11, 2017
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Thanks for all your considered responses.
After messing around as follows...
Shutdown computer in 5760x1200 mode.
Booted in 5760x1200 mode.
Removed and reloaded Crysis (and patches).
Ran Crysis in 5760x1200 mode.
Sluggish behavior unchanged.
Changed resolution in game to 1920x1200.
Speedy and wonderful performance.
Changed resolution in game back to 5760x1200.
SPEEDY AND WONDERFUL PERFORMANCE even in Extra High quality mode.
Exited game.
Reran.
Same sluggish behavior until completing the resolution switching as above.
So I'm PRETTY HAPPY that it works essentially as expected.
(Still no splash screen although the sound is present and some splotches of color here and there).

Any ideas about that? (Again, thanks for your informative discussion).

 

chef7734

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Its quite a strange problem. You never answered if its only Crysis and which Crysis it is that is causing the issue. Do you have this problem in other games? Maybe crysis doesn't like the 24:5 aspect ration with the 1080. Did you remove and delete the radeon drivers correctly?
 

DavidGenge

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Feb 11, 2017
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I have only the one game, Crysis 1. (The system is used mainly for my garden robot development hobby).
Yes, I deleted all Radeon vestiges (correctly, I don't know).

Here's another clue: When the system wakes from sleep it often resets reporting BSOD, never happened with the Radeon.



 

chef7734

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Does it BSOD when only using one monitor? It's possible that you have a faulty card. What's your BSOD error? If you removed the drivers correctly and installed the latest Nvidia drivers, then unless there is a hardware issue, you should be golden. Do you have another PC you can test the GPU in? Maybe a friend's PC? Have you tried andifferent pcie slot?
 

DavidGenge

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Feb 11, 2017
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1,510
Update: For reasons unknown, the 1080 now runs Crysis correctly, the splash screen is visible , at 5760x1200 in Very High quality mode and with considerably more than enough fps, i mean very smoothly. (I don't have a fps reporting tool).
The only remaining concern is the random BSOD when awakening from sleep mode...