does the g3258 bottleneck the r9 285 ?

[ahmedx511]

i just finished my build and that's great but i heard about the bottleneck
i didn't overclock it yet because i still have the stock cooler
now my questions is
it will bottleneck if i use it in " normal use " like only browsing and watching youtube ?
and if i overclock it which one is the best water cooling i'm planning to get (CORSAIR Hydro Series H110 Extreme Performance Water cooler)
And my last question is does it will bottleneck if i overclock it to 4.7ghz ?
my motherboard is asrock z97m anniversary

Sorry about the questions but i'm new in this things
thanks.

 

[plaintuts]

Dual core cpu should still be fine with a 285 gpu

 

[ahmedx511]

Good to hear that
but should i overclock it for not bottleneck ?

 

[plaintuts]

Somewhat,

But people are generally sold to getting a g3258 because they read its a good cpu to overclock.

 

[photonboy]

Hi,

YES, it will bottleneck that card but it depends on the game. There is a HUGE difference between games in how much CPU processing is used relative to the graphics.

(I get slightly annoyed when people say "no, it won't bottleneck.. no problem dude" without any proof of that.)

OVERCLOCKING will help if you have a CPU bottleneck but at best it would be up to how much you overclocked. For example, if you were at 30FPS and overclocked by 30% you'd get at most 39FPS (30x1.3).

CPU cooler:
That's a good cooler (H110) but it really defeats the value of what you're doing. If you didn't have the CPU already I'd have suggested a cheaper cooler and putting the money into an i5-4xxx CPU instead.

*As it is I suggest a Cooler Master Hyper 212 EVO. It's about $30 or so and should enable a pretty good overclock. I don't know if the liquid cooler would make much difference and the MOTHERBOARD's ability to provide stable voltage is also relevant. A more expensive cooler is the Noctua NH-U12S which is cheaper than the H110 and more than enough for an overclock. It's quieter than both coolers. With fan control software (from motherboard support) should be enabled for best cooling/noise ratio.

I also do NOT RECOMMEND liquid coolers if an air cooler will suffice which is the case here. The pump will not only always produce a bit of noise but it can fail which is a big hassle. In comparison the Noctua fan is silent in idle mode, very quiet with CPU at 100% usage, and you can even game with the fan disabled for many setups.

No point in worrying too much about how much bottlenecked a particular game might be compared to say what an i5-4690K might give. Tweak the game to give the best quality visuals at your desired frame rate. In general I recommend:

a) 40FPS average with VSYNC OFF, or

b) 60FPS with VSYNC ON (only if you can output 60FPS almost ALL of the time), or

c) 60FPS with Dynamic VSYNC ON (same as Adaptive VSYNC for NVidia. Can force on with RadeonPro).

*IMPORTANT-> I recommend start with FRAPS running then adjust resolution, AA etc until you maintain 60FPS (for 60Hz monitors) at least 90% of the time. Then, if screen tearing gets too common drop a few settings such as 8xMSAA to 4xMSAA to minimize screen tear frequency.

d) 30FPS with Dynamic "Half" VSYNC (I think this exists in RadeonPro. Useful for top-down, slower games if you can't maintain 60FPS but VSYNC disabled has too much SCREEN TEAR).

For 144Hz screens this is particularly useful as you can have 72FPS VSYNC'd since 144FPS is usually way out of reach, but screen tear may prevent VSYNC disabled.

Summary:
a) YES. Bottleneck in some games for sure.
b) CM Hyper 212 EVO recommended
c) Overclock but keep stable
d) TWEAK games (in particular experiment with Dynamic VSYNC)

 

[photonboy]

https://downloadcenter.intel.com/download/19792

You should run THIS software as well as memtest www.memtest.org

 

[plaintuts]

^^wow, you even have the math on how much fps gain can be achieved with an overclock

Pci-e communication lanes should also improve along with performance due to overclocking based on those numbers

The r9 285 is roughly equivalent to a 270x... Bottleneck on some games?? Hmmm maybe because they are coded for quadcore based cpu, but then again.. Math

 

[photonboy]

^^wow, you even have the math on how much fps gain can be achieved with an overclock

Pci-e communication lanes should also improve along with performance due to overclocking based on those numbers

The r9 285 is roughly equivalent to a 270x... Bottleneck on some games?? Hmmm maybe because they are coded for quadcore based cpu, but then again.. Math

No idea why you're bring up PCIe bandwidth or what your "math" comment means. Anyway, it's very easy to get the impression that the G3258 wouldn't bottleneck the R9-285 if you look at a few benchmarks out of context and of course it works quite well for many games.

I expect there's be a CPU bottleneck in Skyrim (slightly lower FPS than an i5-4690K would produce with same graphics card) but unlikely to be a bottleneck with Tomb Raider.

Probably lower performance in some MMO's than a good quad core would get. On the other hand, StarCraft 2 can only use two threads so an overclocked G3258 would do relatively well there.

(FYI, in SC2 the bottleneck can shift between GPU and CPU. For example, it might be on the GPU but during intense battles with a lot of CPU calculations the CPU becomes the main bottleneck. Just FYI to understand how this works. For that reason they even came out with two different benchmarks. One for CPU and one for GPU. I'd guess several MMO's are also prone to this.)

Also, if you enable VSYNC and can maintain a stable 60FPS (with 60Hz monitor) that's a software induced bottleneck so it doesn't matter.

 

[plaintuts]

"It's very easy to get the impression that the G3258 wouldn't bottleneck the R9-285"

Hmmm, you're not quite familiar with sarcastic retort.

Iam implying that there would be indeed a bottleneck on the cpu side, the G3258 being a dual core

What I found interesting about your comment is an Exact 0.3% increase if you overclock at 30% above stock Will help with bottlenecK.. No amount of overlocking a dual core will help with programs coded for quadcore cpu.

Also, I did not notice OP mention starcraft or any game for that matter..

Just browsing and YouTube,