Single channel ram severely bottlenecks gpu?

[Fleck99]

Does running single channel ram severely bottleneck your gpu?Im using 8gb single channel ram with Gtx 1080(I know I made mistake going with 8gb only).In Witcher 3,gpu usage is 98% most of the time but in villages I have seen it drop to 70%.In Deus Ex Mankind Divided it never goes above 70% other than in the inbuilt benchmark.Same with far cry 5 and Battlefield 1.I ran cpu user benchmarks and it showed everything performing above expectations.Is it the single channel ram itself causing such a huge bottleneck?Cpu is i5 8600.If I’m not wrong shouldn’t gpu usage be 99% or atleast 90+% most of the time?My cpu usage also spikes to 80s and 90s.

[Electronics Wizardy]

 

 

Normally the differece in performance from dual to single is pretty small. You can try adding anouther stick, but it won't help too much

 

What framerate are you getting?

[Fleck99]

Mankind divided falls below 60fps even though I play in 1080p.Sometimes drops to 40s.Even at 720p it still falls below 60fps.BF1 falls below 60fps as well.Gpu usage in these games never go above 70%.Farcry 5also I have seen it dip below 60.Batman Arkham Knight as well low gpu usage and FPS drops to 40s.Witcher 3 stays above 60 all the time but gpu usage does drop near villages.

[Fleck99]

When I ran cpu user benchmark,the results were similar to other people.

[Taf the Ghost]

4 minutes ago, Fleck99 said:

Mankind divided falls below 60fps even if I play in 1080p.BF1 falls below 60fps as well.Gpu usage in these games never go above 70%.Farcry 5also I have seen it dip below 60.Batman Arkham Knight as well low gpu usage and FPS drops to 40s.Witcher 3 stays above 60 all the time but gpu usage does drop near villages.

AK has its own severe problems, so that might not be the an issue with the single channel memory.

 

In your case, it should only bottleneck if the threads on the CPU become starved for bandwidth from the memory. Thus, it's really going to depend what game & what game engine you're playing. With 6 cores, Dual Channel is highly advised because it has to split the bandwidth 6 ways. (With DDR4 and 4 cores, it isn't a big issue. With 6 cores and above, it can be.)

 

So, the better question is: what speed is your memory running at? The speed & latency is going to be the first major issue.

[Fleck99]

Ungine Heaven normal score too.

[Fleck99]

2400mhz 16-16-16-39.I can get it to run at 2666 at 15-15-15-35.Not much difference tho.

[-rascal-]

Putting the graphics setting + resolution down puts less usage / stress on the GPU.

The CPU usage should then kick in more.

This is to be expected.

 

GPU usage should be 90%+ most of the time, but there will be scenes or parts of a game where it will dip down.

 

How is your memory usage?

You'll get a bigger hit if you start running low on RAM.

[Taf the Ghost]

5 minutes ago, Fleck99 said:

2400mhz 16-16-16-39.I can get it to run at 2666 at 15-15-15-35.Not much difference tho.

Faster memory helps in most games. or even pushing the timings down. You probably want to run TimeSpy to see if you're in normal line with the 8600k.

[Fleck99]

Deus Ex was using between 6.8-7.3.I think bf1 7 too.Batman 7 as well.Only game I have played which maxed out my ram capacity is rust..Do you think the bottleneck will be gone with the dual channel?I also noticed Deus Ex was using over 7gb vram in ultra settings 1080p.Im not sure if that’s normal.

[Fleck99]

2666 is best I can do because I’m using b360 mobo.Maybe can push timings down to 14 cas.Im not sure if that will make big difference.

[Taf the Ghost]

16 minutes ago, Fleck99 said:

Deus Ex was using between 6.8-7.3.I think bf1 7 too.Batman 7 as well.Only game I have played which maxed out my ram capacity is rust..Do you think the bottleneck will be gone with the dual channel?I also noticed Deus Ex was using over 7gb vram in ultra settings 1080p.Im not sure if that’s normal.

Rather than Single Channel, you might actually just be memory starved. As a few of the reviewers like to point out, 8 Gb really isn't enough for modern games. (You could try lowering texture quality, it might relieve some of that memory issues.)

11 minutes ago, Fleck99 said:

2666 is best I can do because I’m using b360 mobo.Maybe can push timings down to 14 cas.Im not sure if that will make big difference.

2666 is more than fine. ~2800 is where diminishing returns kick in. On both AMD & Intel. (If you're rocking a Ti-class GPU doing ultra-high frame rate stuff it makes a difference, but that's a completely different Use Case.)

[Fleck99]

Ok bro I will try to get that extra 8gb ram asap.Hopefully that should fix the bottleneck 

[Taf the Ghost]

6 minutes ago, Fleck99 said:

Ok bro I will try to get that extra 8gb ram asap.Hopefully that should fix the bottleneck 

Do you have any background programs running? There might be something eating up a really large amount of memory for no reason.

[Fleck99]

Don’t have any background programs running.About 2.5gb used by windows only.