Possible bottleneck with new GPU

[SagatFlakes]

Hi,

I just replaced my HIS Radeon 6870 with a GTX 760, but my performance has been less than expected. I don't know if it is my CPU bottlenecking my performance, or if there is else going on.

I only game at 1600x900, yet my performance falls well below benchmarks given at 1920x1080.

For example: The Anandtech benchmark for Sleeping Dogs has an average framerate of 80.1, and a low of 49.4 at 1920x1080. I am only averaging 38-43 fps at 1600x900, and it drops down to 35 while I'm driving at high speeds!

The story is the same in Assassins Creed IV Black Flag. On the open seas I'm getting 29-33 fps, and during ship battles and in cities I'm dropping down to 20!

I am seeing maybe a 15% improvement over my 6870, which obviously isn't right.

Temperatures for the card are at about 70 degrees while in game and 30 while idling.

GPU - EVGA GTX 760 SC w/ACX
CPU - AMD Phenom II X6 1100T Black Edition
MOBO - Gigabyte GA-990XA-UD3
RAM - 8GB DDR 3

Any advice at all would be greatly appreciated. I planned on upgrading to a 1920x1080 monitor today, but that is now out of the question until I can resolve the current issue!

 

[monkeydelmagico]

OC the 1100T and see if the FPS increases

 

[24601]

Hi,

I just replaced my HIS Radeon 6870 with a GTX 760, but my performance has been less than expected. I don't know if it is my CPU bottlenecking my performance, or if there is else going on.

I only game at 1600x900, yet my performance falls well below benchmarks given at 1920x1080.

For example: The Anandtech benchmark for Sleeping Dogs has an average framerate of 80.1, and a low of 49.4 at 1920x1080. I am only averaging 38-43 fps at 1600x900, and it drops down to 35 while I'm driving at high speeds!

The story is the same in Assassins Creed IV Black Flag. On the open seas I'm getting 29-33 fps, and during ship battles and in cities I'm dropping down to 20!

I am seeing maybe a 15% improvement over my 6870, which obviously isn't right.

Temperatures for the card are at about 70 degrees while in game and 30 while idling.

GPU - EVGA GTX 760 SC w/ACX
CPU - AMD Phenom II X6 1100T Black Edition
MOBO - Gigabyte GA-990XA-UD3
RAM - 8GB DDR 3

Any advice at all would be greatly appreciated. I planned on upgrading to a 1920x1080 monitor today, but that is now out of the question until I can resolve the current issue!

Of course you're CPU bottlenecked.

Anandtech's GPU bench 2013 (The one with the Sleeping Dogs Benchmark) are run on a Intel Core i7-3960X @ 4.3GHz.

Unless you have at least a 2500k @ 4.3 ghz, you're not going to get numbers as high as it.

 

[BrightCandle]

OC the 1100T and see if the FPS increases

Second this. You can also combine it with GPU-Z and looking at the GPU usage in the sensors tab. I suspect that you are having performance issues due to the CPU.

 

[SlowSpyder]

My 1090T ran at 4GHz+ without issue. I think you can probably get a solid 20%+ performance boost by overclocking the CPU, but don't expect miracles.

 

[skipsneeky2]

Had a system at one point with a 1100t and a gtx570, found bottlenecking all the time so not surprised to see it happening with a gtx760. Guess in the worst case you could pump up some AA to make better use of that card.

Getting a 1080p monitor would be critical i think.

 

[KingFatty]

Reduce the graphical detail even further, maybe try 640x480 if available.

See if your framerates stay the same.

 

[SlickR12345]

I don't see the problem, the cpu might be bottlenecking the GPU a little bit, but with the 760 you will be getting around 40fps at that resolution and max settings in watch dogs, so I don't know what your problem is.

 

[escrow4]

You have a creaky old Phenom bottlenecking the stuffing out of it:

http://www.techspot.com/review/827-watch-dogs-benchmarks/page5.html

http://www.pcgameshardware.de/Watch...s/Watch-Dogs-Test-GPU-CPU-Benchmarks-1122327/

Say Watchdogs which is fairly well multithreaded, an 1100T cracks 49FPS, a modern i5 hits 80. The lower you drop the resolution the more you are CPU bottlenecked and that old Phenom is getting hammered. At 720p it can barely break 30FPS.

Both Black Flag and Sleeping Dogs are CPU heavy.

 

[toyota]

You have a creaky old Phenom bottlenecking the stuffing out of it:

http://www.techspot.com/review/827-watch-dogs-benchmarks/page5.html

http://www.pcgameshardware.de/Watch...s/Watch-Dogs-Test-GPU-CPU-Benchmarks-1122327/

Say Watchdogs which is fairly well multithreaded, an 1100T cracks 49FPS, a modern i5 hits 80. The lower you drop the resolution the more you are CPU bottlenecked and that old Phenom is getting hammered. At 720p it can barely break 30FPS.

Both Black Flag and Sleeping Dogs are CPU heavy.

um what? you dont lose performance dropping the resolution. if the 1100t gets 49 fps at 1080 and is completely cpu limited then worse case it would get 49fps no matter how low the res.

 

[KaRLiToS]

The CPU is the issue.

 

[Bman123]

Its a weak CPU , i don't know why you would think it would get the same frame rate that reviewers get when their using a i7

 

[SagatFlakes]

Its a weak CPU , i don't know why you would think it would get the same frame rate that reviewers get when their using a i7

I wasn't expecting to get the same performance, I just wasn't expecting my frame rates to be nearly 50% below the benchmarks, especially when considering I play at a lower resolution. Thank you for the help, everyone. I'll upgrade my CPU, rather than my monitor for now.

 

[escrow4]

um what? you dont lose performance dropping the resolution. if the 1100t gets 49 fps at 1080 and is completely cpu limited then worse case it would get 49fps no matter how low the res.

If it isn't completely CPU limited . . . .

 

[lopri]

Well, I'm running a 290 with an 1045T (3.90 GHz) and saw performance increase of 50~80% coming from GTX 760 / HD 7950. (2560x1600)

Granted this CPU is getting long in the tooth, and I do sometimes 'feel' that this CPU is not feeding the GPU fast enough (or it could be PowerTune doing its thing, I am unsure), but still the FPS is pretty decent even under such situations.

 

[24601]

Well, I'm running a 290 with an 1045T (3.90 GHz) and saw performance increase of 50~80% coming from GTX 760 / HD 7950. (2560x1600)

Granted this CPU is getting long in the tooth, and I do sometimes 'feel' that this CPU is not feeding the GPU fast enough (or it could be PowerTune doing its thing, I am unsure), but still the FPS is pretty decent even under such situations.

OP is talking about actual gameplay situations with actual stuff going on.

Not the stupidly canned benchmarks that are as minimally CPU stressed as possibly that the bench-markers manufacturer.

@ OP: Look into getting a 4690k if you are looking to upgrade your CPU.

Remember to keep in mind that Minimum Sustained FPS is infinitely more important than average or maximum fps as a measure for playability and smoothness of gameplay.

(Maximum frame time if you know what that means).

 

[toyota]

If it isn't completely CPU limited . . . .

you dont get how things work. you do NOT lose performance going to a lower resolution.