Question Is my RAM worth upgrading ?

My rig was built in 2016 when the gtx came out , 95% of the time i dont really have any problems with spec hungry games , i can run satisfactory that puts high demands on a pc with everything on ultra but i only get around 50 fps. I have tried lowering the graphics settings and turning all sorts of other settings on or off but fps never changes. The only time i see stuttering is on a huge machine called an alien power augmenter .... maybe its because its a huge machine so the pc is doing a lot of number crushing ..... all temps are low.

I know my weak point is probably the ram speed , some sites say my board can use up to 2600 MHz and others say Mhz 3333 is it worth spending money on what would be only a slight increase in speed or should i leave it as it is.

The tower COOLERMASTER HAF-X FULL TOWER GAMING CASE
The cpu is Intel® Core™i7 Six Core Processor i7-6800K (3.4GHz) 15MB Cache.
The motherboard is ASUS® ROG STRIX X99: ATX, USB 3.1, SATA 6 GB/s.
The ram is 16GB HyperX FURY DDR4 2133MHz (4 x 4GB) ....
The graphics card is 8GB NVIDIA GEFORCE GTX 1080 - DVI, HDMI, 3x DP - GTX VR Ready!
The main drive is 480GB HyperX SAVAGE 2.5" SSD
The second drive is 960GB HyperX SAVAGE 2.5" SSD
The third drive is Sandisk 2TB SSD

The dvd/blue ray is 24x DUAL LAYER DVD WRITER ±R/±RW/RAM.
The power supply is CORSAIR 650W CS SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET.
The cpu cooler is Noctua NH-D15S Ultra Quiet Performance CPU Cooler

The pc is so quiet that if i did not have a few lights on it you would not know it was turned on
 
Faster ram might make 5% difference, won't be hugely significant, like giving you 20+ fps or something, justifying the cost, it's more about the age of the platform is all.

Some games are more taxing than others and 1080 can do all it can at maximum in some titles. But if fps isn't increasing with lowered resolution and details compared to maximum then test other less demanding games and monitor your cpu's frequency with Core Temp while running Intel Burn Test making sure cpu is running properly at speed.
 
Faster ram might make 5% difference, won't be hugely significant, like giving you 20+ fps or something, justifying the cost, it's more about the age of the platform is all.

Some games are more taxing than others and 1080 can do all it can at maximum in some titles. But if fps isn't increasing with lowered resolution and details compared to maximum then test other less demanding games and monitor your cpu's frequency with Core Temp while running Intel Burn Test making sure cpu is running properly at speed.
Thank you for your quick reply , i have never heard of intel burn test so i looked on a site called techpowerup and the first thing i noticed was a warning that you use it at your own risk ..... so not sure what to do .... If the program says my cpu is not running properly at speed what will it do.

I am 70 this year so maybe its time for a new rig before i go to the big rig in the sky ...... I did a build my rig on the company site i use and with one of the new 50 series cards i could get one for about £5,500
 
Long as your cpu has an adequate cooler on it ibt is fine, you can close it down immediately anyhow. I've used it many times to test cooling and stability, all it does is run every core and thread to 100%.
 
I forget how much memory satisfactory likes...most simulation games are memory hogs. It is not so much how fast the memory runs it is more how much memory you have. Older machines like yours 16gb used to be fine. Now days 32gb is much more common.

I would see how much memory is in use when the game is running. Maybe going to 32gb would be of more benefit than increasing the clock speed.

The clock speed of the memory has very little impact. I know benchmarking software tends not show much if any difference. The ones that do things like zip/unzip tend to be the ones that you can see a difference. If you were using the IGPU on the CPU then faster memory clocks also help.

In any case if you are going to buy new memory I would buy 2 stick kits. When you read the fine print on most motherboards running 4 sticks of memory has a much lower maximum clock rate.
 
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My rig was built in 2016 when the gtx came out , 95% of the time i dont really have any problems with spec hungry games , i can run satisfactory that puts high demands on a pc with everything on ultra but i only get around 50 fps. I have tried lowering the graphics settings and turning all sorts of other settings on or off but fps never changes. The only time i see stuttering is on a huge machine called an alien power augmenter .... maybe its because its a huge machine so the pc is doing a lot of number crushing ..... all temps are low.

I know my weak point is probably the ram speed , some sites say my board can use up to 2600 MHz and others say Mhz 3333 is it worth spending money on what would be only a slight increase in speed or should i leave it as it is.

The tower COOLERMASTER HAF-X FULL TOWER GAMING CASE
The cpu is Intel® Core™i7 Six Core Processor i7-6800K (3.4GHz) 15MB Cache.
The motherboard is ASUS® ROG STRIX X99: ATX, USB 3.1, SATA 6 GB/s.
The ram is 16GB HyperX FURY DDR4 2133MHz (4 x 4GB) ....
The graphics card is 8GB NVIDIA GEFORCE GTX 1080 - DVI, HDMI, 3x DP - GTX VR Ready!
The main drive is 480GB HyperX SAVAGE 2.5" SSD
The second drive is 960GB HyperX SAVAGE 2.5" SSD
The third drive is Sandisk 2TB SSD

The dvd/blue ray is 24x DUAL LAYER DVD WRITER ±R/±RW/RAM.
The power supply is CORSAIR 650W CS SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET.
The cpu cooler is Noctua NH-D15S Ultra Quiet Performance CPU Cooler

The pc is so quiet that if i did not have a few lights on it you would not know it was turned on
Run this and post a LINK to the results page.

 
Since your FPS does not change when lowering graphics settings, it indicates that your cpu is your limiting factor.
If you have not yet done so, you can overclock your 6800K to perhaps a 35% boost in performance.
Your NH-D15s is an excellent cooler and should handle an overclock well.

Ram speed makes very little difference when using a discrete graphics card.

If you are multitasking while playing games, then 32gb might be appropriate.

We have advanced from your 6th generation to 15th.

Life is too short to have a slow pc.
Upgrade if your circumstances permit.

Quickness comes mostly from good single thread performance.
Run the cpu-Z bench on your 6800K and look at the single thread score.
You should see a number like 505:
https://valid.x86.fr/bench/8hmhpd