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bartbmxgamer

Overclocked CPU to 5.0 GHz but no FPS increase?

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I built a new pc last week and was looking to play Flight Simulator X on high settings. Specs:
MoBo: Asus Z170 Pro Gaming
CPU: Intel Core i7 7700k
GPU: MSI GeForce GTX 1060 GAMING X 3G
RAM: HyperX Fury 16 GB DIMM DDR4-2666 2 x 8 GB
SSD: Samsung SSD 850 EVO 500 GB
CPU is liquid cooled by a Corsair H55 and the case has 6 extra fans excluding the GPU and power supply fans.
I cranked all settings in FSX to maximum and created myself a 'worst case scenario' (creating all the situations that would require the most of my system) and got 14-22 fps.
I decided to increase the clock rate from 4.2 GHz to 5.0 GHz and tweaked the fsx config file and created the same scenario in-game, but got exactly the same amount of fps.
I've made the following enhancements to the config file:
[JOBSCHEDULER]
AffinityMask=84
[bufferpools]
Poolsize=39000000
[GRAPHICS]
HIGHMEMFIX=1
[Display]
WideViewAspect=True
TEXTURE_BANDWIDTH_MULT=40
[Main]
FIBER_FRAME_TIME_FRACTION=0.15
HideInfoText=1
[sCENERY]
SmallPartRejectRadius=3.0

Of course there are settings to decrease but overclocking the pc should help increase the fps, so I'm trying to test this using the same scenario at all times. When it helps, I'll tweak my FSX settings to get exactly the performance I want.

I was hoping someone on this forum could help me out. Thanks in advance.

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Your GPU (video card) is your bottleneck.

 

edit: I've got a similar system with a gtx 1080. I'm not using FSX anymore but in P3D my only limiting factor these days, seems to be the 32 bit OOM.

 

I have to turn things down on high altitude flights to avoid running out of memory.

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What resolution and AA settings are you using?  A 3GB 1060 is a fairly weak video card relative to the CPU...if you're running high resolutions and/or high AA (e.g. 4x SGSS) you may well be GPU-constrained.  If turning down the AA or removing clouds from the equation gets you an FPS bump, then you're most likely being held back by the GPU.

 

Also, what latency (CAS) is your RAM?  Slower RAM with low latency (e.g.2666 @ CAS 13) RAM is OK, but slower memory with high latency (higher CAS settings) leaves the CPU idling longer waiting for memory fetches, so throughput won't increase much if the CPU is overrunning its memory bandwidth.  2666 @ CAS 15, for example, would be pretty slow for an overclocked 7700K--over 18% slower than 3200@15 or 3600@16 which is more the norm for a clocked 7700K.

 

Regards

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Hello,

My computer is quite the same, just that I have 6700k@4.5Ghz and GTX 1060 6GB. I have done some research but just now that I know this GPU can get bottleneck when using FSX. Is it possible? I have asked if upgrading to GTX 1070 or 1080 worth it and almost everybody say no for FSX.

I'm little bit confused now. Here is my nvidiainspector setting

RjPrtTP.jpg

 

Cheers.

Hoang Le

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i upgraded my 660 superclocked (GTX NVIDIA ) to a NVIDIA GTX 1080 and left my CPU clocked at 4.0GHZ and had a jump of frames of about 20% thats not 20 frames but 20% jump of what i was getting. I dont see P3D of FSX using more than 4.0GHZ and a 1080 to get anymore FPS. You kinda have to play with different GHZ and fit it to the best and then upgrade you Graphic card. No bottlenecking here  

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What resolution and AA settings are you using? A 3GB 1060 is a fairly weak video card relative to the CPU...if you're running high resolutions and/or high AA (e.g. 4x SGSS) you may well be GPU-constrained. If turning down the AA or removing clouds from the equation gets you an FPS bump, then you're most likely being held back by the GPU.

 

I changed AA from 8xS [Combined 1xSS and 4xMS] to 4x Multisampling, and put the cloud settings to minimum and it didn't add a single fps.

 

 

Also, what latency (CAS) is your RAM?

 

CAS Latency (CL): 15.0 clocks

RAS to CAS Delay (tRCD): 17 Clocks

(from CPU-Z).

So if I want to increase my fps, should I upgrade my RAM? Thanks for helping!

 

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no youre ram is fine considering the sim is a 32 bit and can only use 4GB. I say you need to fnd your settings in your sim and then match it up 

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no youre ram is fine considering the sim is a 32 bit and can only use 4GB. I say you need to fnd your settings in your sim and then match it up 

 

No, the issue is not the *amount* of RAM, but the speed of the memory.

 

@bartbmxgamer--what I'd do is try overclocking the memory you have now to see if it helps.  If overclocking your RAM results in an FPS bump, then you know it's a limiting factor.  If you can't get the memory to run faster, you can also try *under*clocking it down 10-15% to see if it causes a drop in frames. 

 

@Hoang--8x SGSS is a very aggressive AA setting for a 1060.  A higher end video card in FSX is not usually helpful, except, as in your case, when using aggressive AA (or high resolutions).

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@Hoang--8x SGSS is a very aggressive AA setting for a 1060.

 

He's not using SGSS according to the NI.  Just SS which is a bit easier on the system though still high.

 

I've learned over the years that's its an absolute waste of money to buy super high-end components for a simulator built on 2006 technology.  There are major limitations in the code that will not take advantage of what you throw at it.  There is nothing wrong with your system.  Reduce your settings and enjoy your flight.  :smile:

 

Ilya

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If you're running FSX: SE, you can omit the AffinityMask and BufferPools tweaks. FSX:SE does it all for you. Same goes for Highmemfix. This was made unnecessary to do, because it was implemented into the sim without the need to tweak the config file.

 

The Texture_Bandwidth_Mult setting only works if you are limiting your framerate. Otherwise FSX ignores it.

 

You don't really need the SmallPartRejectRadius these days. Maybe back pre-SP1 where GPUs were weak. It essentially says don't render anything smaller than 3 pixels (default is 4).

 

Performance wise, you've got the latest CPU on the market and even my old i7 2600K is fast enough to feed my GPU draw calls. I personally believe you are GPU bound. Specifically shader bound, because FSX needs a certain amount of shaders to work with at any one time and your GPU doesn't have enough. I'm in the same boat. 

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4,0 or 4,5 or 5,0 ghz in fsx do not matter. fsx is 10 years old and not build to our days, modern pc,s

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Go into your FSX folder and right click on FSX.EXE and see if you can select which video card to run it on.

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Is your overclock stable? Did you run overnight tests?

I haven't done any long stress tests yet but cpu temperature stays below 73 degrees after one hour of testing so I don't thing it's unstable

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He's not using SGSS according to the NI.  Just SS which is a bit easier on the system though still high.

 

 

Yeah, you're right on that...I thought I saw 8x Sparse -grid.

 

 

4,0 or 4,5 or 5,0 ghz in fsx do not matter. fsx is 10 years old and not build to our days, modern pc,s

 

I absolutely disagree.  Until last week, I still had a copy of FSX running on an 8-yr-old 4 GHz i7-975 with a GTX480 (and a 1920x1200 monitor), and there's a clear and massive increase in performance between that and a new 5.0 GHz i7-7700K pushing a 3820x2160 4K display.  FSX does not take full advantage of the improvements in speed and architecture, but it is not left untouched by them, either. 

 

Another thought for the OP--if you only cranked up the cpu mult to overclock the 7700K, you'll need to also increase the cache (aka uncore) mult so that the cache keeps up with the CPU.  If you didn't, that could also help explain the lack of an increase in performance.  I use a value of 400 MHz below the CPU speed as a rule of thumb, e.g. cpu mult 50, cache mult 46 for a 5 GHz overclock.

 

Regards

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I built a new pc last week and was looking to play Flight Simulator X on high settings. Specs:

MoBo: Asus Z170 Pro Gaming

CPU: Intel Core i7 7700k

GPU: MSI GeForce GTX 1060 GAMING X 3G

RAM: HyperX Fury 16 GB DIMM DDR4-2666 2 x 8 GB

SSD: Samsung SSD 850 EVO 500 GB

CPU is liquid cooled by a Corsair H55 and the case has 6 extra fans excluding the GPU and power supply fans.

I cranked all settings in FSX to maximum and created myself a 'worst case scenario' (creating all the situations that would require the most of my system) and got 14-22 fps.

I decided to increase the clock rate from 4.2 GHz to 5.0 GHz and tweaked the fsx config file and created the same scenario in-game, but got exactly the same amount of fps.

I've made the following enhancements to the config file:

[JOBSCHEDULER]

AffinityMask=84

[bufferpools]

Poolsize=39000000

[GRAPHICS]

HIGHMEMFIX=1

[Display]

WideViewAspect=True

TEXTURE_BANDWIDTH_MULT=40

[Main]

FIBER_FRAME_TIME_FRACTION=0.15

HideInfoText=1

[sCENERY]

SmallPartRejectRadius=3.0

 

Of course there are settings to decrease but overclocking the pc should help increase the fps, so I'm trying to test this using the same scenario at all times. When it helps, I'll tweak my FSX settings to get exactly the performance I want.

 

I was hoping someone on this forum could help me out. Thanks in advance.

 

 

First step...

 

Make sure your overclock has actual been applied. To do that, run something like RealBench or CineBench and observe CPUz.

 

Do you see the frequency increase to 5 GHz? Do you see the voltage increase?

 

If not, you have missed something fundamental when overclocking. I have seen this happen when individuals turn off Turbo. Do NOT turn off Turbo.

 

If not, follow these steps...

 

Reset to optimised defaults.

 

Install the latest BIOS.

 

Test the sim with no overclock. No frame rate limiter. Keep it simple. No fancy CFG tweaks, in fact delete the CFG and allow the sim to build a new unadulterated version. All variables must be kept the same. Make a note of the result

 

Overclock with Asus Five Way Optimisation. I'm not asking you to stick to auto overclocking, it's just that 5WO will overclock properly and make all the necessary adjustments for you. This way we know we are bypassing any errors you made when you attempted to overclock. 5WO is to be found within AiSuite. There are a few settings to consider, so if confused PM me and I'll help.

 

5WO is designed not to apply unsafe voltage or exceed a safe temp.

 

Run RealBench Or CineBench again and monitor with CPUz to verify you have an overclock.

 

Test the sim again, with exactly the same variables. Make a note of the result.

 

If your current 5GHz overclock has applied...

 

RAM latency: Does inmpact frame rate in the sim. However, it shouldn't render a 5GHz overclock totally ineffective. So no, I don't believe this is your issue.

 

As for cache (uncore) if you haven't touched this your motherboards auto rules will have. Asus auto rules are excellent these days.

I decided to increase the clock rate from 4.2 GHz to 5.0 GHz and tweaked the fsx config file 

 

 

 

So basically, by "tweaking" the cfg file you added a variable that wasn't there before you overclocked.

 

All variables before and after overclocking should be as close to identical as you can make them.

 

Settings you made in the cfg "may" have reduced your frame rate. 

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