nonamer said:
Those are dual-core CPUs.
And Cell is an 9 core and Xenon a 3 core. The reality is CPU core size kind of stalled, one reason being they were not parallel in nature. But die sizes have increases with Quad Cores coming very soon.
Single cores CPUs are around 100mm^2, and compared to GPUs of the same size, they are more expensive.
All the educated pieces of information I can find indicates CPUs, on the manufacturing side, are actually quite cheap. This is a couple years old, but
it indicates it costs AMD and Intel $21 and $22 respectively, to make a CPU. As of last year
it was estimated at $40 and that this has been pretty steady since 2003. And
an indepth analysis of CPU (and GPU) manufacturing costs arrives at the same general range.
I see no reason to believe that CPUs cost more on the manufacturing side. Intel and AMD's model is different. A large percentage of Intel's sales are through OEMs (not retail), but their retail pricing reflects binning and a "premium" at the high end. It is their business model that causes the high price stratification. As I mentioned earlier a lowly P4 2.4c was as good as a P4 3.2GHz. The later was over $500 more simply because they could sell it for more.
The R580 is close to 350mm^2, and that's the largest GPU, which can still be purchased at a reasonable price. CPUs at that size are multi-thousand dollar things
It is hard to say that because there really are no consumer-level CPUs at that size, or any purpose to create one. Dual core CPUs are being completely underutilized in almost all of the desktops being sold, so why add 2 more cores and inflate production costs for absolutely no tangible consumer benefit? That said it looks like Presler ways in at 280mm^2, which is large even by GPU standards.
But to return to one of your statements:
Single cores CPUs are around 100mm^2, and compared to GPUs of the same size, they are more expensive.
If a GPU, with redundancy (as most do), is cheaper than a CPU of comparable size, what does that say of Cell which is one of the biggest CPUs on the market at 235mm^2?
And facts still remain: Cell has more redundency and likely better bin splits. Without firm proof, you cannot state either way that the Cell is going to be the more expensive of the two.
I already answered the redundancy question (i.e. it is still bigger and has fewer cores per wafer), but as for bin splits: Both chips use a similar PPE core. Assuming the PPE is the part holding back Cell (which it may be as it seemed to get pretty hot), I am not sure Xenon (which has similar PPEs) is going to be significantly worse.
As for the firm proof, I disagree.
Firm Facts: Cell is 40% larger die size, disabled SPE
What ifs: Bin splits, other uses for the chip, etc
Basically we are at an impass because the "what ifs" are being set at the same level as the "firm facts". To this end we will just need to agree to disagree.
Either way the PS3 still costs substantially more & Sony is going to lose a lot of money in the first year.
That's not direct evidence of anything, other than there a lot of expensive components in the PS3, which are not necessary related to Cell.
And one of those more expensive components is Cell (and RSX).
Unless, of course, Sony is so magically superior to everyone else at chip fabrication, in which case we have a problem. Sony is going to lose $900M with the PS3 -- and if that is not from Cell and RSX, since Sony is so great at fabbing -- that means Blu Ray is costing nearly $200 per box. (i.e. comparing the chief difference between the 360 Premium and PS3-20GB).
And that is being generous because it appears that at first the majority of PS3's are going to be the 60GB SKU, which based on consumer retail prices a 60GB 2.5" laptop drive is no more than $40 more expensive than a 20GB model. Add the extra HDMI port, Gigabyte lan, etc and Sony actually loses less money per 60GB SKU compared to the 20GB SKU.
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Anyhow, any way you cut it and regardless of where the expense is coming from, Sony is estimating large losses from the PS3 indicating that Sony is losing money on every unit sold. This point is not debatable as they themselves 1) have projected the 900M loss and 2) have stated projected sales numbers in conjunction with those estimated losses.
Whatever it is, Sony has parts in the PS3 that cost more to make.