Sign in with
Sign up | Sign in
Your question

Possible CPU Bottleneck?

Tags:
  • Bottleneck
  • CPUs
  • Crossfire
Last response: in CPUs
Share
October 11, 2014 9:34:14 AM

Ok, so I recently purchased + installed an addition R9 290X in my rig in order to crossfire it with my other 290x however I've noticed little/no performance increase when crossfiring it, despite knowing 100% that the crossfire is working due to the icon pop-up when I load the games I play. So after being faced with this incredibly frustrating problem I began looking around to see why and was told that what was causing my second card to barely make any difference was due to my CPU possibly bottlenecking my GPUs. So before I think about buying a new CPU I was just wondering if anybody here could help me out by confirming whether or not it is my problem.

My CPU/GPU is:
i5 2500k 3.3ghz (quad core)

two R9 290x's (4gb ddr5 vram)

Thanks!

More about : cpu bottleneck

a b à CPUs
October 11, 2014 9:46:46 AM

What games are you playing? Most games have very bad (or none at all) crossfire support.
m
0
l
a b à CPUs
October 11, 2014 9:46:47 AM

First of all what games you play? Overclock that CPU! why do you even have it at stock? Whats you GPU's and CPU usage like when playing games?
m
0
l
Related resources
October 11, 2014 9:55:19 AM

Dunlop0078 said:
What games are you playing? Most games have very bad (or none at all) crossfire support.


Well I've tried a few games, both of the Metro games, pretty heavily modded Fallout 3, Far cry 3, all of them seem to have crossfire running in them but with no performance gain.
m
0
l
October 11, 2014 9:59:26 AM

ifreestylin said:
First of all what games you play? Overclock that CPU! why do you even have it at stock? Whats you GPU's and CPU usage like when playing games?


I've tried a bunch of games, all of them appear to have crossfire running( Both Metro games, heavily modded Fallout 3, Farcry 3), even when I'm using crossfire both GPU usage is ~70-100% and when I drop one of them I don't drop any frames and CPU core usage is around 40-70% but each core varies a little.
m
0
l
a b à CPUs
October 11, 2014 10:01:42 AM

Jordan141 said:
ifreestylin said:
First of all what games you play? Overclock that CPU! why do you even have it at stock? Whats you GPU's and CPU usage like when playing games?


I've tried a bunch of games, all of them appear to have crossfire running( Both Metro games, heavily modded Fallout 3, Farcry 3), even when I'm using crossfire both GPU usage is ~70-100% and when I drop one of them I don't drop any frames and CPU core usage is around 40-70% but each core varies a little.


Try to disable ULPS

http://www.tomshardware.com/faq/id-1904869/disable-ulps...
m
0
l
a b à CPUs
October 11, 2014 10:02:46 AM

Jordan141 said:
Dunlop0078 said:
What games are you playing? Most games have very bad (or none at all) crossfire support.


Well I've tried a few games, both of the Metro games, pretty heavily modded Fallout 3, Far cry 3, all of them seem to have crossfire running in them but with no performance gain.


Yah i dont think any of those games have very good crossfire support i doubt fallout 3 has any. But i would think there should be some performance gain in far cry 3 and metro if only a little. A game like bf4 is where it really makes a difference.
m
0
l
October 11, 2014 10:23:30 AM

ifreestylin said:
Jordan141 said:
ifreestylin said:
First of all what games you play? Overclock that CPU! why do you even have it at stock? Whats you GPU's and CPU usage like when playing games?


I've tried a bunch of games, all of them appear to have crossfire running( Both Metro games, heavily modded Fallout 3, Farcry 3), even when I'm using crossfire both GPU usage is ~70-100% and when I drop one of them I don't drop any frames and CPU core usage is around 40-70% but each core varies a little.


Try to disable ULPS

http://www.tomshardware.com/faq/id-1904869/disable-ulps...


That actually gave me a slight performance boost ( around 4-5 frames ) so thanks, but I've just tested FC3/Metro and I'm still unable to reach 60fps on high :( 


m
0
l
!