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At what point will a 965 limit gaming? - Page 6

post #51 of 125
A 965 isn't going to bottleneck a card. It's a higher end quad on AMD's side and at resolutions like 1920x1200 it most likely isn't going to be a factor in your fps and if it is it would only be by a few FPS (2-3fps).

I've done several tests with my 955 (a step BELOW a 965) in games such as BC2 and SC2 and my two OC'd 5770s (that have somewhat better performance than a stock 5870) are still the big bottleneck at many resolutions (I've tested 1280x1024 - 1920x1200). My cards run at 100% constantly in most games while my CPU usage is roughly 60-75% regardless of the resolution and settings I use. Changing my CPU from stock (3.2GHz) to 3.8 gave me a 1 fps increase
I also get around 80 fps in BC2 maxed settings.

I think people are underestimating the processing power of the 965, buying a 6990 will not be a waste of money, you will get amazing fps and not be limitted by a 965 and if so it will be so minimal that an OC of even 100-200MHZ would fix it.
post #52 of 125
Lol, why not just buy the 6990 bro, and just upgrade your CPU later on... You will get hundreds of people giving you different answers, and I'm guessing because no one has the exact same system (well, usually). Go for the 6990, and get the CPU later on. You will still get awesome looking graphics without any problems... If you want the best, you need to get THE BEST overall. That's just my opinion.
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post #53 of 125
Time for a bench-off!!!!

Anyways, you can pretty much destroy any video card if you don't mind playing at lower FPS. Even at these low, low fps (due to maxed settings in the first screen, and even higher settings forced through nv control panel) I was still getting my fair share of cpu usage trying to push all that info to the gpus.






PC games can be pretty demanding if you make an effort to get them there... I mean I'm showing rift (mmo) beating the hell out of my sli 470's at 850 core.

The scary thing is with all the extra AA/AF/SuperSamp I hit 1050 memory usage and I never even went into a city

I dunno, clearly those settings maxed out my gpu usage, but in a dual threaded game I was sitting running between 34-42% cpu usage.

I personally left AMD because if you search "Low gpu usage" 99% of your hits will have AMD cpus. I wanted to go SLI so I moved over the Intel and couldn't be happier unless I had GTX 580s for the $365 I paid for my two 470's.
Edited by BallaTheFeared - 3/25/11 at 5:36am
    
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post #54 of 125
It is very simple.

A lot of games (not all) use only 1 thread to do their thing. Some will use 2 and only a happy few use more than that.

This means that the overall speed of your CPU is not important, your per core speed is more important.

A simple single core/multi core benchmark application like cinebench (free) will give you a pretty nice estimate of your single core performance.

In my experience and making use of the database at www.cbscores.com these are the single bench scores of the following systems all at 4.0Ghz.:

core i7 920/930/950 @ 4.0Ghz: 1.34 CBP
Sandybridge 2500k/2600k @ 4.0 Ghz: 1.34 CBP
core i7 970/980x/990x @ 4.0Ghz: 1.34 CBP

AMD 1055t @ 4.0Ghz : 1.25
AMD 1100t @ 4.0Ghz : 1.25


And these are the maximum attainable OC's per chip:

core i7 920/930/950 @ 4.2Ghz: 1.36 CBP
Sandybridge 2500k/2600k @ 4.8Ghz 1.47
core i7 970/980 @ 4.4Ghz : 1.41
core i7 990x @ 4.8Ghz : 1.47

AMD 1100t @ 4.2Ghz : 1.3

As you can see that for applications using less than 4 cores almost any chip will do you good. There are only minor differences inbetween basically all chips that overclock well.

The question is if you play games that use more than 1 or 2 cores. Only some support more than that and I suggest doing your research for core usage instead of total power. Because honestly the only reason why you should opt for a 990x for instance is that it can achieve a higher overclock and thus make only a couple of it's CPU's faster for your game. It will still be picking it's nose at 20% of it's total load though. Just pop up the task manager when playing games and look at the CPU usage. This is also why CPU's don't run very hot while gaming.

I also believe that for gaming there is not much difference between a 2500k and 2600k. Sure there are a couple of games that you are going to notice the difference because they are better optimized to use all of your cores. However in day to day use I'd vastly prefer a faster per core speed than a huge total score.
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post #55 of 125

Cinebench is a benchmark based on rendering, in gaming cpus don't render, gpus do.

Just thought I'd let you know.



lawls Linus knows bottlenecks!
Edited by BallaTheFeared - 3/25/11 at 6:12am
    
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post #56 of 125
In short a short CPU will help but personally would just get a HD 6950 for your CPU. Unless you have eyefinty, 2560*1600 dont get HD 6990 cause you will not get the performance its offers.
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post #57 of 125
Quote:
Originally Posted by BallaTheFeared View Post
Cinebench is a benchmark based on rendering, in gaming cpus don't render, gpus do.

Just thought I'd let you know.

http://www.youtube.com/watch?v=TGdo75gasaQ


lawls Linus knows bottlenecks!
What I am trying to convey is that cinebench gives a pretty good indication of a CPU's processing capabilities on a per core basis. That means it is directy extrapolatable to single/multithreaded applications.

And ofcourse, GPU's do most of the work .
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post #58 of 125
Here is what got me to leave AMD, it may or not not matter to you but this was my logic.

You buy a graphics card(s) for $200-$700.

The question you have to ask yourself then is do you want to get 100% of the power it offers, or do you want to get 70% of it? Add in another card and the difference grows even more, do you want 180% of your purchased performance, or do you want 130% of it?

There is a reason every review site in the world that I've ever visited uses an Intel based system to benchmark new video cards. Simply put, it's because the AMD rigs generally hold back graphics cards, where as the Intel setups offer the best case scenario possible on the market.

To that end, to each their own.
    
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post #59 of 125
Quote:
Originally Posted by BallaTheFeared View Post
Here is what got me to leave AMD, it may or not not matter to you but this was my logic.

You buy a graphics card(s) for $200-$700.

The question you have to ask yourself then is do you want to get 100% of the power it offers, or do you want to get 70% of it? Add in another card and the difference grows even more, do you want 180% of your purchased performance, or do you want 130% of it?

There is a reason every review site in the world that I've ever visited uses an Intel based system to benchmark new video cards. Simply put, it's because the AMD rigs generally hold back graphics cards, where as the Intel setups offer the best case scenario possible on the market.

To that end, to each their own.
I can most certainly agree with that. The fact that you use all your hardware at the maximum possible OC and performance level is a nice thing to have.

AMD's single core benchmarks also show the fact that per core it offers slightly less performance. However, in multicore benchmarks the AMD counterpart of the 950 is actually slightly faster at the same 4.0Ghz!

core i7 950 @ 4.0Ghz: 7.07 CBP
AMD 1055t @ 4.0Ghz: 7.18 CBP

However, I think that in real world usage the difference is neglible . What if it is 10% slower? Are you going to notice? Some people are willing to spend top dollar for that last 10%, some don't.

Anyway to each his/her own
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post #60 of 125
No bottleneck. DO IT!
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