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Will a phenom ii x4 955be bottleneck an R9 290?

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January 14, 2014 7:21:18 AM

I'm thinking of upgrading my HD 5870 to an R9 290 but will my CPU cause my PC to bottleneck when I'm gaming?

Also, if it does bottleneck my system, which moderately priced CPU would go well with the R9 290?

Sorry if I posted this thread in the wrong forum, I'm new here and was unsure whether to post this under GPU or CPU.

Thanks!
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January 14, 2014 7:31:21 AM

Yes there will significant bottleneck with the 955. What motherboard do you have? If you have the cash, I'd get an 8320 and an aftermarket cooler to overclock.
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January 14, 2014 9:41:42 AM

watching this thread. i have the same CPU oc'd to 3.4ghz. im using a 560Ti 2gb SC currently. mobo is asus m5a88-m. im assuming since the 770 and r9 290 are roughly the same in performance, i would bottleneck at the CPU if i upgraded the video card first, no?

not meaning to threadjack, sry, just following since im in the same boat.
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January 14, 2014 10:34:00 AM

Let me put it like this. Here is Tom's BF4 review showing the CPU scaling of the game.



The GPU used in this test is a Nvidia Titan GTX. The R9 290 is direct competitor to the Titan and 780. The 955BE is equal in power to a FX4170. Even a CPU that has a faster clock than the 955BE, there's a bottleneck. Now if you don't play on Ultra at 1080, it would be less noticeable. But then what is the purpose of buying a 290?

BF4 review:
http://www.tomshardware.com/reviews/battlefield-4-graph...
R9 290 review:
http://www.tomshardware.com/reviews/radeon-r9-290-revie...
CPU Hierarchy:
http://www.tomshardware.com/reviews/gaming-cpu-review-o...
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January 14, 2014 10:47:43 AM

XennoTech said:
watching this thread. i have the same CPU oc'd to 3.4ghz. im using a 560Ti 2gb SC currently. mobo is asus m5a88-m. im assuming since the 770 and r9 290 are roughly the same in performance, i would bottleneck at the CPU if i upgraded the video card first, no?

not meaning to threadjack, sry, just following since im in the same boat.


They're close, but the 290 is more powerful. I would also think that the 955BE would bottleneck a 770 GTX. It's not that you don't have a good CPU. It's just old now, by 3 generations now (released in Dec '09). These cards are very high end. They require newer and more powerful CPUs to fully utilize their power.

Now this is just my opinion, but ballpark of the max CPU I would group with a 955BE would be a 660 GTX, 7870 or a R9 270.

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January 14, 2014 11:29:10 AM

290>780>280x>770

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January 14, 2014 1:36:20 PM

barto said:
XennoTech said:
watching this thread. i have the same CPU oc'd to 3.4ghz. im using a 560Ti 2gb SC currently. mobo is asus m5a88-m. im assuming since the 770 and r9 290 are roughly the same in performance, i would bottleneck at the CPU if i upgraded the video card first, no?

not meaning to threadjack, sry, just following since im in the same boat.


They're close, but the 290 is more powerful. I would also think that the 955BE would bottleneck a 770 GTX. It's not that you don't have a good CPU. It's just old now, by 3 generations now (released in Dec '09). These cards are very high end. They require newer and more powerful CPUs to fully utilize their power.

Now this is just my opinion, but ballpark of the max CPU I would group with a 955BE would be a 660 GTX, 7870 or a R9 270.



oh i know my cpu is old. thats why its getting replaced soon. my budget is around 700$ to replace the CPU, mobo and video card. im probably going to replace the cpu/mobo first with an i7 3770k or 4770k, sell the spare parts, use that plus leftover budget to get a 770 or more if i can afford it.

im using a 560Ti 2gb SC right now. good to know im around the theoretical max for the processor im using.
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January 14, 2014 2:05:33 PM

XennoTech said:
oh i know my cpu is old. thats why its getting replaced soon. my budget is around 700$ to replace the CPU, mobo and video card. im probably going to replace the cpu/mobo first with an i7 3770k or 4770k, sell the spare parts, use that plus leftover budget to get a 770 or more if i can afford it.

im using a 560Ti 2gb SC right now. good to know im around the theoretical max for the processor im using.


Well if you want to change to Intel you can but I think your motherboard is fine. It will support the new AMD 83xx series with a bios update. You can save money there buy getting a 8320 and overclocking it. Then you could use the saved cash to buy an SSD and a 770. Do you have an SSD?

http://www.asus.com/Motherboards/M5A88M/#support
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January 14, 2014 2:27:11 PM

yeah i have an ocz vertex 3 i was thinking about upgrading as well, or getting a second one to run in raid. i dont really want to OC if i dont have too. main reason for upgrading is since i game and livestream on twitch.tv, i need something that can handle the load im throwing at it. the phenom works for now, but if i bump it up i think ill bottle neck.
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January 14, 2014 2:32:16 PM

A CPU cannot bottleneck a GPU, it can only be a bottleneck for specific games. In some games, the CPU will force its max speed on the GPU and lower the frame rates and in other games it will make little to no difference. In most games, the GPU bottlenecks the CPU but for some reason they don't call that a bottleneck. Here's a tip: The Phenom II X4 was MADE to overclock. Get a third-party CPU cooler and overclock it. That should at least minimize the problem if not eliminate it completely.

Here's an instance where the CPU really doesn't matter (as long as it has 4 cores or more), Battlefield 3 single-player mode:
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January 14, 2014 3:02:03 PM

Avro Arrow said:
A CPU cannot bottleneck a GPU, it can only be a bottleneck for specific games. In some games, the CPU will force its max speed on the GPU and lower the frame rates and in other games it will make little to no difference. In most games, the GPU bottlenecks the CPU but for some reason they don't call that a bottleneck. Here's a tip: The Phenom II X4 was MADE to overclock. Get a third-party CPU cooler and overclock it. That should at least minimize the problem if not eliminate it completely.



i have an aftermarket rocketfish heatsink on it with 2 x 92? mm fans on it (push/pull). ive not had much luck overclocking this cpu past 3.4ghz. every time i would run a test in p95, i would get bsod. i saw a few links to a how-to for oc'ing this particular cpu on this forum, but they are all 404'd now and do not show up on googles cache either :\

the games im playing are dayz stand alone, arma II with dayz mod and arma III.

-edit-

I think I just found a source of why I was crashing so often outside of p95. seems there is a bug with google chrome and the realtek audio codec I use that causes system lock ups for some strange reason.. happened during the 28 update apparently. this is good news actually, since im now more willing to try an overclock on this processor. a link to a guide (if possible) for this series of processors would be great. the one on here, like I said, is 404 :\
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January 15, 2014 9:42:57 AM

Avro Arrow said:
A CPU cannot bottleneck a GPU, it can only be a bottleneck for specific games. In some games, the CPU will force its max speed on the GPU and lower the frame rates and in other games it will make little to no difference. In most games, the GPU bottlenecks the CPU but for some reason they don't call that a bottleneck. Here's a tip: The Phenom II X4 was MADE to overclock. Get a third-party CPU cooler and overclock it. That should at least minimize the problem if not eliminate it completely.

Here's an instance where the CPU really doesn't matter (as long as it has 4 cores or more), Battlefield 3 single-player mode: http://static.techspot.com/articles-info/458/bench/CPU_...


I kind of disagree. A bottleneck is the concept that a single component is holding back or preventing the rest of the computer's components from their full potential. Gaming is one of the common ways to test a computer's component's full potential, same as 3D graphics, benchmarking etc. Frame rates is one of the ways to see the effects of bottleneck with defined settings.

I see it as putting a Toyota Camry's engine in a Ferrari. The Ferrari has all the abilities to drive like a race car but the engine isn't powerful to keep up with the other cars on the track. Whereas a GPU bottleneck would be having a Ferrari engine in a Camry.

I agree with your statement about where the CPU doesn't matter in BF3 single player. It's completely scripted or a constant environment that has little to no changes . It doesn't take a strong CPU to play single player, but it also doesn't take a strong GPU to play it either. The GPU and CPU don't have to render or process 63 other people shooting, throwing grenades, and driving tanks. When someone is just browsing the internet or working with documents, it's fine because the GPU isn't pressured.

However in games that have multi-player, it's a different story. Multi-player isn't scripted. The environment is constantly changing evident by higher GPU and CPU usage. Which is why I think Tom's did their review of BF4 in multi-player and not in single player because they received a lot of flack about how unrealistic BF3 single player was. In BF3, it was an easy 15 frame drop from single player plus the moderate fluctuation from explosions. Game dependent, when a CPU has to do it's job for the game and then can't support the GPU as well, in my opinion that's a bottleneck. And that will happen with a 955BE paired with a 290.
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February 21, 2014 9:05:13 AM

Lemme say this about your topic.

I got an FX 8120 running at 4.75 Ghz. Since I had some spare time today, I decided to put my old Phenom II 945 back in for a bit of fun.
Got it running at 4.1 Ghz again. Those Phenoms rule!
As far as Memory bandwith it lacks a bit, but as a complete whole.
The Phenom outperforms the Bulldozer by far. Game wise at least!

Greets
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April 25, 2014 11:13:25 AM

got my 955 up to 3.6ghz stable on just the multiplier and a little extra voltage (1.355 i believe).

my onboard audio took a crap last week, took out my OS and i had to reinstall. probably time to change mobos :D 
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April 26, 2014 10:24:38 AM

XennoTech said:
got my 955 up to 3.6ghz stable on just the multiplier and a little extra voltage (1.355 i believe).

my onboard audio took a crap last week, took out my OS and i had to reinstall. probably time to change mobos :D 


If I'm not mistaken, you have a M5A88-M correct? I wouldn't have overclocked with that motherboard. It has an average VRM design without heatsinks. You could have cooked your motherboard because of the increased voltage (which means more heat).

http://www.asus.com/Motherboards/M5A88M/
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April 26, 2014 11:00:34 AM

that's correct. heat has never been an issue in my case, and moreso now with the custom heat shroud i just built. ive actually DECREASED my CPU temps by 3C under load. im currently streaming a 1080p video and playing arma III on max settings. cpu temps havent passed 45C and video card temp is at 41C.

compared how to the cpu ran on auto voltage, my heat is well within acceptable levels ;) 

my vCore is sitting between 1.31 and 1.33 under load. i wouldnt be worried about heat, esp with the cooling i have going on
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