Nvideas rsx pipelines vs 360 ATI pipelines 360 core vs ps3 cell

Where did I claim that my opinion is "unbiased"?.

I agree with your point regarding stability. In fact I always advise people not to buy 360 until it goes 65nm and hence have a new revision on the motherboard.

But from pure hardware performance point of view. Which is what my post has been about all along. 360 simply has superior design that give superior performance.

Please note I have clearly mention that I am not gamer but a hardware enthusiast. So pardon me if my point of view is different when it comes to what SONY can do in term of the best exclusive game by their in house developer.

My point of view is that everyone can do their best. And if Microsoft or third party developer do their best on the 360. The resulting game will be comparable or better to what Sony can do for their exclusive games. They can, because Xbox 360 is a well balance machine.

I have heard a lot about PS3 will be doing better after certain period of time. Well lets throw 6 month out of the equation since we already past that. I suspect that we can throw 1 year out, because we are about to get to 1 year already.

Well OK ... lets wait for 2 years. I'll reply your post after PS3 is 2 years old and let see what happen. Is that ok with you? I don't mind the wait.

See ya!

 

The is alot of misinformation when it come to specs. They can fuge the number to make one look more powerful than the other. The difference is in the design. The PS3 has the RSX, which is a traditional GPU. The X360 has the ATI Xenos, which is the first GPU to have a Unified Shader Pipeline and a 10MB eDRAM daughter chip on the same substrate.

For those who do not know what a Unified Pipeline is, it is a design that allows all programs to share the same ALU (Arithmetic Logic Unit) resources, which in the case of GPU's, pixel shader programs and vertex shader programs can run through the same ALU's. ATI designed the Xenos for the Xbox 360 so that developers can utilize all of the ALU's in the processor for what ever function they wanted instead of having specific ALU's for vertex, and the others for pixels.

The RSX is claimed to be similar to the Geforce 7800 from what I read. But sony, does not clarify this, so we can just assume it is. There is alot of evidence to prove it is an altered version of the 7800 series.The RSX is a traditional design though, and does not have a unified shader pipeline like the ATI Xenos.

The XBOX 360 benifits greatly becaue of the unified shader pipline and the 10MB eDRAM, making 100 percent anti-aliasing on all games possible without any performance sacrafice, and creating a more colorful and clear picture on the screen. If you notice all PS3 games lack in a comparable color and clarity quality to the XBOX 360.

The ATI Xenos is a better GPU compared to the RSX, because of these first of a kind innovations in GPU design. The RSX depends greatly on the PS3's CELL processor, particularly the 8 specialized DSPs. The 8 specialized DSPs are used for all vertex operations which the RSX offloads to the CELL. The RSX was altered to focus more on pixel operations. But , because of this setup, memory usage and bus bandwidth is minimized. Plus since the CELL only has one General purpose core, all of the program code that resides in main memory is lenghtier and more complex, resulting in a longer load time, more latency on the Bus.

The FLEX-IO Bus interconects the RSX to the CELL but with no advantage. What we have here is the FLEX-IO Bus is making up for the poorly designed CELL and RSX implementation. In my opinion, The CELL might be a powerfull CPU, but the implemenation on a 3D game console is not ideal, unless the CELL can perform all GPU functions. The design tries to implement a new first of a kind CPU with a traditional GPU archetechure for gaming.

Microsoft and ATI has actually innovated the way GPU's are designed. The benefit of a unified pipleline and free 4xAA enabled 100 percent of the time should make the XBOX out live the PS3 as far as graphics quality. This is why games look better on the X360. On the other hand as devlopers figure out how to effectivley use the CELLs DSPs to produce similar graphics quality PS3 games should be able to compete. But this will cost greatly for the PS3 because of increased latency and load times, and a shorter lifespan, as XBOX 360 games will getter better as developer can eaisly take advantage of unified shader pipelining.

There are some people who say that XBOX 360 is runing at it's peek performance level and that may be true due to the 100 percent GPU resource usage. But remember that the ATI Xenos is a Flexable GPU and resourses can always be realocated to the discreation of the developer. The PS3 resources are somewhat limiting to the developer regaurdless of it's powerful CELL CPU. The Graphics is key and XBOX got it right.