Hi There. I have this computer specs

Hardware

i7 7700k - overclock to 4,8 ghz and stable

amd radeon hd 6900 series 2gb memory size. core clock 880mhz. memory clock 1370mhz

TEMPS OK. WATER COOLING SYSTEM FOR CPU. GPU BELOW 65 CELSUIS

Software

Windows 10

Prepar3d v4.2 INSTALLED IN A SEPARATE SSD 

Problem:

In latinvfr KMIA with 737 PMDG Virtual Cockpit (no ai traffic, mid graphics not maxed out) i have only 15fps. This is not possible with this machine

I check in task manager (or speedfan, or CPUz) cpu usage and when it loads it gets up to 80%. But when it finishes loading and the VC is displayed, the CPU usage drops to 10%. The is no way of increasing that number.

I tried almost every Affinity Mask number and no FPS change at all. Hyperthread is on. Virtualization is enabled. I tweak shaders with PTA no FPS change. I tweak CFG with texture load, autogen, etc, no FPS change

I DONT KNOW WHAT ELSE I CAN DO?? IS THE GPU OLD AND THE ONE RESPONSIBLE OF LIMITING MY i7700k PROCESSOR??

WHEN I USE AEROFLY2, MY CPU USAGE IS 30% AND THE SIM WORKS GREAT. 100FPS

Thanks for the help guys

Regards

Agustin

 

I've seen a similar issue.  I believe your video ram is maxed out.  Check with GPU-Z or another app.  When that happens CPU frames just plummet.  Also that card is ancient...  like 2010?

yes the video ram and you ar gpu BOUND, tested differnt cpu clocks with a 7700K a year ago compared nvidia 680,980,1080 with 1920x1080 res to see with FRQ you get GPU bound.

680 gpu bound with deafault clock, 980 4.6ghz and 1080 4.9 ghz  

no difference in fps from 4ghz up to +5.0ghz with a 680

Unfortunately that graphic card is holding your whole system back, its like a having a Ferrari which has the gear box of a ford fiesta.

 

I agree with all the above. That processor OC'd to 4.8 your video card is undercutting it's value for your system. Start thinking about 8-12gb of vram and a 1080.

 

i7-7700k OC'd 4.7 GHz,   Asus Prime Z270-A MOBO ,32 GB DDR4 Ripjaws, ZOTAC ampExtreme 1080 8GB,  Thermaltake Core V71 Case, Corsair H100i v2 liquid cooler, RM850xCorsair psu, ADATA M.2 2280 240GB SATA III TLC Internal Solid State Drive (SSD) WIndows 10 Pro, 2 TB Samsung and 3 TB WD HDs .

Edited March 21, 20188 yr by Lenny777

Just to illustrate -- I had a Radeon R270X with 2 Gb VRAM. A few months ago I bought a used Gigabyte 1070 8 Gb card to replace it. The difference was night and day for performance and details rendered. Have been watching my VRAM usage and it varies between 2-4.5 Gb depending on scenery. Running in 1080P mode. So, the R270 was either dropping details to stay within the 2 Gb or using system RAM to supplement (which definitely slowed things down). Another piece of info, I was running at about 90-95% GPU utilization and with the 1070 I am about 30-40%. You must get an upgraded video card!

PROBLME SOLVED GUYS! YOU ALL WERE RIGHT. I replace my GPU with 1080ti sc2 of EVGA.

Now i dont have my i7 overclocked (4500mhz) and i maxed out graphic settings... I have 60FPS in KMIA!

 Disneyworld

 

Regards

Agustin

Cool.  That was quite the upgrade hehe