What is Bottleneck ? and What is the effect ?

[Danar Christanto]

What is Bottleneck ? and What is the effect ?

I want to build a Gaming computer with AMD FX 4130 Black Edition with XFX AMD HD7750, does it going to bottleneck ?

 

[Gam3r01]

In any system there is a bottleneck somewhere.
What this mean is one component is holding the other back, usually the processor and graphics cards.
When a CPU bottlenecks the card it cant supply it with enough information, so it cant use all its power, the other way around isnt as bad. Simply the processor can support better, but dosent loose anything by not doing so.
With that setup everything is pretty balanced, no loss in FPS or power.
I WOULD hoever avoid any FX-x1xx series processors, as they tend to be weaker. Get the FX-4300 or 6300 if you can.

 

[Avro Arrow]

Bottlenecking in the sense that you're probably describing is the limits of a CPU that are imposed on a graphics card. Bottlenecking occurs in games that are "CPU-bound" which means that they need a higher ratio of CPU resources to GPU resources. Games like Skyrim, Battlefield 3 and Civilization V fall into this category. The frame rate of the game will be imposed by the speed of the CPU instead of the speed of the GPU. Most games are "GPU-bound" which means that although a certain speed of CPU is needed, the speed of the GPU is far more crucial. In a CPU-bound game, the CPU will dictate the frame rate no matter what kind of card in installed. For instance, if you have a Core2Duo in Battlefield 3, you will get the same frame rate with a Radeon HD 7770 that you will with a Radeon HD 7970. It's because the CPU is limiting the framerates to what it can handle, no matter what the GPU is capable of. The bottleneck will be larger on a higher-end card because the actual frame rate will be further from its theoretical maximum frame rate on that game than on a lower-end card. The idea that a weaker CPU cannot "handle" a high-end card is absurd. If it couldn't, Windows wouldn't load at all. In truth, the weaker CPU cannot handle certain games. The GPU involved is irrelevant.

The FX-4130 would most likely work just fine with a Radeon HD 7750.