Which is the bottleneck? 7850 or i7 920?

[mlah384]

The system is an i7 920 on a Asus p6t ... I think the mobo only has 2.0x16? So does that limit the 7850 a lot causing a bottleneck?

Thanks

 

[Don Karnage]

What is the 7850 and 920 clocked at?

 

[blastingcap]

Play a game and record fps.

Turn down graphic settings by a significant amount.

Play the game again and record fps.

If your fps went up, then for that game at least, you are GPU bottlenecked.

If your fps didn't really change, then for that game at least, you are CPU bottlenecked.

PCI-e 2.0 (16x) will not bottleneck a single 7850. Maybe if you had 6 of them or something.

 

[toyota]

jeez once again you make it too complicated. do NOT turn down graphics settings as many of those impact the cpu. ALL you have to do is keep the same settings and simply turn down the resolution. if frames stay the same than the cpu is a limitation. its just that simple.

 

[blastingcap]

Well not the advanced settings, no, but I meant texture settings and resolution. Turning down just resolution also works. Thanks for the clarification. Once again you prove your charisma or lack thereof.

 

[Don Karnage]

At stock clocks a 7850 should have no issues running bf3 on ultra

 

[toyota]

Well not the advanced settings, no, but I meant texture settings and resolution. Turning down just resolution also works. Thanks for the clarification. Once again you prove your charisma or lack thereof.

well its so silly to have to repeat the same thing over and over and over. there is NO point in touching any graphics settings so please stop recommending that when all you have to do is lower the resolution.

 

[Gordon Freemen]

Neither and the bottleneck would and could be ether/or but it will be on a per game basis and whether it is online etc etc etc etc etc

 

[computerparts1]

There are graphics settings that affect the cpu?

 

[Gordon Freemen]

There are graphics settings that affect the cpu?

Physics runs on the CPU

 

[toyota]

There are graphics settings that affect the cpu?

yes. the majority of settings in modern games except for AA and AF have an impact on the cpu.

 

[xp0c]

Doesn't bottleneck a GTX 670 so it won't bottleneck the 7850.

 

[toyota]

Doesn't bottleneck a GTX 670 so it won't bottleneck the 7850.

a stock 920 would most certainly hold back a gtx670 from performing its best.

 

[xp0c]

At stock settings on my cpu, which is the equivalent of a 920. I get the same fps in BF3, same graphics score in 3dmark11, and same scores in Heaven.

 

[Gordon Freemen]

At stock settings on my cpu, which is the equivalent of a 920. I get the same fps in BF3, same graphics score in 3dmark11, and same scores in Heaven.

An Athlon II X4 645 @ stock nets near enough the same performance in BF3 as an i7

 

[xp0c]

So does a dual core i3 ^

 

[toyota]

An Athlon II X4 645 @ stock nets near enough the same performance in BF3 as an i7

not in multi player

 

[toyota]

At stock settings on my cpu, which is the equivalent of a 920. I get the same fps in BF3, same graphics score in 3dmark11, and same scores in Heaven.

graphics score in 3D Mark has nothing to do with cpu. and in BF 3 multi player having a faster cpu will help.

 

[xp0c]

graphics score in 3D Mark has nothing to do with cpu. and in BF 3 multi player having a faster cpu will help.

Sure it does. It show that the CPU has the power at stock settings to push the 670 to it's limit.
I don't believe having a faster cpu effects multiplayer. It's all video card.

 

[Gordon Freemen]

not in multi player

BF3 is OPTIMIZED and yes in Multilayer it is also OPTIMIZED.

 

[xp0c]

If you were playing a cpu intensive game you may see a bottleneck. If that happened you could overclock enough to remove that bottleneck. You could probably get to 4ghz easily, which is what I use 24/7.

Edit: just clued in that you were probably just asking about the PCI-E 2.0. My bad
There might be 1 fps difference

 

[Gordon Freemen]

If you were playing a cpu intensive game you may see a bottleneck. If that happened you could overclock enough to remove that bottleneck. You could probably get to 4ghz easily, which is what I use 24/7.

Edit: just clued in that you were probably just asking about the PCI-E 2.0. My bad
There might be 1 fps difference

There is no limitation or bottelneck of any kind on PCI-E 2.0 on modern cards for they are yet to even saturate the bandwidth of PCI-E 2.0. On the otherhand PCI-E 3.0 does not offer more or faster bandwidth so there is literally a non issue with PCI-E bandwidth as of current though Msi or Asus ect would have you think otherwise with there sales propaganda LOL.

 

[toyota]

Sure it does. It show that the CPU has the power at stock settings to push the 670 to it's limit.
I don't believe having a faster cpu effects multiplayer. It's all video card.

NO, the graphics score is mainly just what the gpu can do and the cpu has little impact. and you have no clue about BF 3 if you think its all video card. really your whole comment deserves nothing but an eye roll...

 

[toyota]

BF3 is OPTIMIZED and yes in Multilayer it is also OPTIMIZED.

BF 3 multi player needs MUCH more cpu power than single player. I swear this forum has gone to hell. lol

 

[xp0c]

NO, the graphics score is mainly just what the gpu can do and the cpu has little impact. and you have no clue about BF 3 if you think its all video card. really your whole comment deserves nothing but an eye roll...

You can roll your eyes. I've been rolling mine for a while.

anyway I never seen a bottleneck in my system.

I never really had to worry about if BF3 took more cpu power in multiplayer than it does in single player. Maybe it does, but not enough for me to notice. I didn't look up the graph.