Bottlenecking I haveth.

[WesleyBurns]

That old chestnut.

I have been seeing in a few games in certain maps with my new GTX 1080 (Doom, Tomb Raider) with the refresh rate at 120Hz and the GPU = 70% and power drawer = 80% and FPS = 85, moving the view to something less complex and the frames go up to 120 (obviously GPU and Power drawer arnt maxed either at this point as the scene is not complex anymore, unless I turn vsync off)

Now I have a pretty powerful pc (see sig) and the last bottleneck I has was when I had a 780Ti running 1600MHz memory, moving over to 2400MHz helped that time definitly.

Who here could guess where the bottleneck is. I.E CPU or memory, the reason I ask is if i need to maybe move over to a X99 platform???

My PCI-Ex is definitly running X16 mode too.

 

[WesleyBurns]

I have tried at 4.5 and it yielded a few more frames 5 - 10 but still not convinced its all CPU.

There must be a bottleneck if the GPU cannot run at max all the time in certain scenes.

 

[WesleyBurns]

Must be, I just don't see why it should bottleneck, maybe DX12 will help when it becomes better supported.

 

[WesleyBurns]

I found it was in that open scene in doom where you have to jump across that huge bridge where you find the double jump boots. Right where you first start that level.

 

[WesleyBurns]

Ok good, becuase I am sure my sig is as about a good a z97 can get. Bottleneck must be poor drivers/game code.

 

[WesleyBurns]

Any Intel power settings I should turn off in the BIOS?

 

[WesleyBurns]

Thanks tonight I will be doing some OC tests and see if my CPU oc makes any difference as well as check TR benchmarks @720p @1080p @1440p

 

[WesleyBurns]

If you have TW3 that will tell you. That's been recently patched on latest drivers and runs 99% with a single 1080 at all times in my rig.

So does that mean TW3 never used to max out on your pc until the patch? i.e it is down to driver optimizations?

 

[WesleyBurns]

So I did some TR tests and there is no bottlenecking at 1440p

I found another scene in DOOM where there is apparent bottlenecking - it always seems to be scences where there is partical physics (level where you get the double jump boots - hats off to the delelopers to the most beautiful cable sparking particals I have evers seen and the level where you enter Hell and the lava glowing particles).

I was getting about GPUPOWER 80% GPULOAD 78% CPULOAD 50% @ 76 FPS

I then oc'd to 4.5GHz and 78 FPS
I then oc'd OFF and RAM at 1600! and 75 FPS

So I can definitly say it is not CPU or RAM bound but rather code especially around partical physics, ill play with some game settings today and toggle certain game candys off to zero in on the culprit.

On a side note, i cannot say how classic DOOM feels, love the game, it takes me back to the 90's they way they have made the maps, game rollout and weapons, it is good old classic DOOM on steriods, love the weapon mods.