Bottleneck on GTX 670 on PCI Express 2.0?

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paperrockbazooka

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Thanks for reading, your assistance is much appreciated! Buying this PSU and GPU...

GPU: Gigabyte Nvidia gtx 670 http://www.newegg.com/Product/Product.aspx?Item=N82E16814125423
PSU: Antec 750W High Current Gamer Series http://www.newegg.com/Product/Product.aspx?Item=N82E16817371049


...to add onto my old setup listed below. Goal is to play Witcher 2 on highest settings. I think CPU will hold up fine. Might get 4 gbs of ddr2 ram to add onto build-- not sure more ram is necessary though. Mostly concerned with my mobo as I know it will bottleneck performance of gpu somewhat, but unsure as to what degree (PCI Express 2.0).


Mobo: ASUS P5Q Pro LGA 775 Intel P45 ATX Intel Motherboard http://www.newegg.com/Product/Product.aspx?Item=N82E16813131299
CPU: Intel Core 2 Quad Q6600 Quad-Core Processor http://www.amazon.com/Intel-Q6600-Quad-Core-Processor-Cache/dp/B000LRMR26?SubscriptionId=AKIAJASE6HSSVXTNREYQ&tag=smtfx1-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B000LRMR26?afsrc=fstfx
RAM: CORSAIR XMS2 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 http://www.newegg.com/Product/Product.aspx?Item=N82E16820145184
 

Rockdpm

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Yes, PCI Express 3.0 Graphics cards are compatible with 2.0. And there is no performance difference. Also your CPU won't bottleneck your system.

Happy hunting!, your good to go!
 

cuecuemore

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The PCIe bus will not bottleneck your card, but your CPU, RAM, and other system buses will. I'm not saying that you shouldn't get the card, in fact you should go for it, and PCIe 2.0 will not be a problem.
 

paperrockbazooka

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Interesting. Posted this on other forums also and opinions are torn in regards to if cpu needs an upgrade.

As far as ram goes, The gist I am getting is that RAM is not that important for gaming and 4gb ddr2 should do fine. Would you all agree?
 

monsta

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I will say your cpu will be a bottleneck , if you can overclock it , it will elleviate the bottlenecking and will perform much better. Another option is to grab a used Core2Quad from ebay , like a Q9650, they arent cheap tho.
Games like BF3 on Ultra 1080 will exceed 4GB, Ive seen mine go as much as 5.5 gb whilst in game.
You will not get a bottleneck with pci-e 2.0
http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/
 

xtreme5

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definitely your cpu and ram are weaker for handling a gtx 670 even i5 760 can't handle it on it's stock speed so squeezing up your cpu will not make any better improvement i'd recommend not to go with gtx 670. If you want to taste a real performance of gtx 670 then change your entire system and get new one with i5 3570k.
 

the great randini

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i love that board i have one too, you can flash the bios to display your own picture during startup. the cpu and mobo would bottleneck before.
 
G

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please provide some proof of that.

a Q6600 OC'd to 3+Gz will still handle any single graphics card and quite a few dual core will too. :p
 

cuecuemore

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No, it won't, not nearly. A 2500k @4.4GHz bottlenecks a 670 in many single and dual threaded games, so let's just call a spade a spade.
 
G

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lets provide some proof so to better educate me than give an opinion please :)
 

xtreme5

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hahahah are you kidding ya!! Or just really?
Ok you've said that q6600 3+ghz handle any single gpu then show me where its powering up a gtx 680..or 690 hehe..
You've also said a few dual core will handle too aahhh i can't seem any dual core which provding a complete power to gtx 670 or 680 first you'll show some proof then i'll show you a dozen..
 

paperrockbazooka

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you drunk? Why are you speaking like that

Neither has shown proof. Its hearsay vs hearsay.
 

xtreme5

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also not true, however 2500k is still good enough this cpu could handle even gtx 680 sli... With no bottlenecking..
 
G

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kindly back up your claim sir,
gtx 670 even i5 760 can't handle it on it's stock speed
do not ask me to provide something you are refusing to do yourself. it has been a endless debate as soon as someone asks about a graphics card immediately a bunch of ignoramuses scream "bottleneck".

so kindly back up your B.S.
 

Zephids

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@ PaperRockBazooka What speed is your Q6600 running? You'll have a CPU bottleneck regardless. However, if you overclock your CPU over 3.0Ghz then it'll be less noticeable. I think that's the main consensus here.
 
G

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your right, i *may* have to admit a bit of trolling with my dual core comment :lol:
 

spentshells

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Q6600 @ 3.0 or better will still provide resonable CPU performance, I have had mine at 3.8 for a little better than a year now and 3.2-.34 is more that possble depending on the CPU revision
 

xtreme5

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also not true, however 2500k is still good enough this cpu could handle even gtx 680 sli... With no bottlenecking..
 

monsta

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I can only speak from my own experience , I had 560ti SLI which would be of similar performance of a 670.
I was running an E8500 overclcocked and it was topping out. So I purchased a QX9650 and my set up was running brilliantly.
The Q6600 for instance will need a good overclock, with a good cooler they overclock like crazy and will give you enough juice to push the 670.
Going from 4GB to 8GB of ram also helps alot in intensive games like BF3, I found 4GB of ram with the older Core2Quads would struggle in BF3 and would stutter , going to 8GB fixed it.
So grab the 670 a good cooler and overclock the hell out of that Q6600 add more ram for intensive games like BF3 and you will get good performance.
 

loops

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I don't understand the issue of bottleneck vs not as important.

Get the 670. It will be fine in 2.0. If you need to upgrade the rest then do so. It seems free to try it on you set up b.c you have it. So try it. If you get 50+FPS you will be fine. There may or may not be a need to upgrade.

4 gigs of ram have been reported to be an issue by some members in games like Bf3.

Anyhow, http://www.guru3d.com/article/radeon-hd-7970-cpu-scaling-performance-review/1
 

Zephids

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I'd also like to point out, if you purchase a GTX 670 now, when you purchase a new mobo/ram/CPU you can just buy a 2nd GTX 670 and SLI it up.
 

monsta

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670 SLI would be awesome!
I purchased the 680, words cannot express how happy I am with its performance.
Every game runs as smooth as silk.
 

Zephids

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I could not get my hands on a GTX 680, Nvidia can't pull it's head from it's ass. So I bought a Sapphire 7970 OC. I have no complaints thus far.
 

monsta

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Yeah fair enough, the 670 difference in performance to a 680 isnt that huge , so it makes it a better buy than the 680 at 100 bucks less.
 
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