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People returning PS3s

post #1 of 53
Thread Starter 
So I walk into Best Buy today and guess what - there are about 10 PS3s sitting behind the customer service desk. I think its pretty funny that no one wants "the future of gaming". Maybe Sony screwed something up this generation - oh wait, they didnt screw anything up, they screwed everything up!
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post #2 of 53
But it has Blu-Ray. IT'S THE FUTURE!
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post #3 of 53
Quote:
Originally Posted by selectodude View Post
But it has Blu-Ray. IT'S THE FUTURE!
Beta, Beta Is the future...
Mini disks, MD is the future...
Hi8 is the future


How many times does sony have to loose before they get one right

Maybe blu-ray will be the future, or maybe it will be more dead media
    
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post #4 of 53
What's worse is there's a guy on my MSN list who is frantically trying to sell his 20GB PS3 below retail price, and no one wants it, to top it all off he was one of those "uber" businessmen/entrepreneurs that thought it would be wise to buy several PS3's and sell them off at inflated prices, man did that bite him in the rear or what? Reminds of the "Pursuit of Happiness" only instead of selling xray machines, he sells ps3's.
    
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post #5 of 53
I don't know what you guys got stuck up your *** but the PS3 is amazing, and it absolutly owns the xbox 360 hands down.
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post #6 of 53
Even ignoring the bandwidth limitations the PS3's GPU is not as powerful as the Xbox 360's GPU.

Quote:
RSX GPU
550 MHz
Independent vertex/pixel shaders
51 billion dot products per second (total system performance)
300M transistors
136 "shader operations" per clock
The interesting ALU performance numbers are 51 billion dot products per second (total system performance), 300M transistors, and more than twice as powerful as the 6800 Ultra.

The 51 billions dot products per cycle were listed on a summary slide of total graphics system performance and are assumed to include the Cell processor. Sony's calculations seem to assume that the Cell can do a dot product per cycle per DSP, despite not having a dot product instruction.

However, using Sony's claim, 7 dot products per cycle * 3.2 GHz = 22.4 billion dot products per second for the CPU. That leaves 51 - 22.4 = 28.6 billion dot products per second that are left over for the GPU. That leaves 28.6 billion dot products per second / 550 MHz = 52 GPU ALU ops per clock.

It is important to note that if the RSX ALUs are similar to the GeForce 6800 ALUs then they work on vector4s, while the Xbox 360 GPU ALUs work on vector5s. The total programmable GPU floating point performance for the PS3 would be 52 ALU ops * 4 floats per op *2 (madd) * 550 MHz = 228.8 GFLOPS which is less than the Xbox 360's 48 ALU ops * 5 floats per op * 2 (madd) * 500 MHz= 240 GFLOPS.

With the number of transistors being slightly larger on the Xbox 360 GPU (330M) it's not surprising that the total programmable GFLOPs number is very close.

The PS3 does have the additional 7 DSPs on the Cell to add more floating point ops for graphics rendering, but the Xbox 360's three general purpose cores with custom D3D and dot product instructions are more customized for true graphics related calculations.

The 6800 Ultra has 16 pixel pipes, 6 vertex pipes, and runs at 400 MHz. Given the RSX's 2x better than a 6800 Ultra number and the higher frequency of the RSX, one can roughly estimate that it will have 24 pixel shading pipes and 4 vertex shading pipes (fewer vertex shading pipes since the Cell DSPs will do some vertex shading). If the PS3 GPU keeps the 6800 pixel shader pipe co-issue architecture which is hinted at in Sony's press release, this again gives it 24 pixel pipes* 2 issued per pipe + 4 vertex pipes = 52 dot products per clock in the GPU.

If the RSX follows the 6800 Ultra route, it will have 24 texture samplers, but when in use they take up an ALU slot, making the PS3 GPU in practice even less impressive. Even if it does manage to decouple texture fetching from ALU co-issue, it won't have enough bandwidth to fetch the textures anyways.

For shader operations per clock, Sony is most likely counting each pixel pipe as four ALU operations (co-issued vector+scalar) and a texture operation per pixel pipe and 4 scalar operations for each vector pipe, for a total of 24 * (4 + 1) + (4*4) = 136 operations per cycle or 136 * 550 = 74.8 GOps per second.

Given the Xbox 360 GPU's multithreading and balanced design, you really can't compare the two systems in terms of shading operations per clock. However, the Xbox 360's GPU can do 48 ALU operations (each can do a vector4 and scalar op per clock), 16 texture fetches, 32 control flow operations, and 16 programmable vertex fetch operations with tessellation per clock for a total of 48*2 + 16 + 32 + 16 = 160 operations per cycle or 160 * 500 = 80 GOps per second.

Overall, the automatic shader load balancing, memory export features, programmable vertex fetching, programmable triangle tesselator, full rate texture fetching in the vertex shader, and other "well beyond shader model 3.0" features of the Xbox 360 GPU should also contribute to overall rendering performance.
http://www.itvidya.com/playstation_3_vs_xbox_360

the original idea of the PS3's Cell processor was that it would directly handle the 3D rendering and other video-related stuff (decoding, etc...). That's why is has all its floating-point power. Early PS3 tech demos had the Cell doing the graphics.

But that didn't work out, so they contracted nVidia to quickly port one of their PC GPUs to the PS3 architecture. That was probably a good move on Sony's part, but now the Cell is relegated to just CPU tasks, which is wasn't designed or optimized for.

so

360 > PS3

I don't think you've played one game on the 360 then again on the PS3. It's terrible. It's like going form a c2d to a Celeron.
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post #7 of 53
Quote:
Originally Posted by r3tard View Post
What's worse is there's a guy on my MSN list who is frantically trying to sell his 20GB PS3 below retail price, and no one wants it, to top it all off he was one of those "uber" businessmen/entrepreneurs that thought it would be wise to buy several PS3's and sell them off at inflated prices, man did that bite him in the rear or what? Reminds of the "Pursuit of Happiness" only instead of selling xray machines, he sells ps3's.
How much is he selling it for? id buy it off him.
    
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post #8 of 53
Quote:
Originally Posted by Sidious View Post
I don't know what you guys got stuck up your *** but the PS3 is amazing, and it absolutly owns the xbox 360 hands down.
Cough* FANBOY Comment *Cough
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post #9 of 53
you really think so sidius? I have both and I can tell you hands down it dose not!
unless you own both and can make that statement is a true personal review then please refrain from fanboyism.
    
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post #10 of 53
HD-DVD is the way forward like.
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