- Jan 1, 2011
 
- 3,266
 
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No rumors or anything, just an idea for discussion.
 
The performance of Llano is clear and, despite slow performance on the CPU side due to outdated architecture, the graphics performance is extraordinary when compared to traditional integrated graphics or even Sandy Bridge's HD Graphics 3000. If equipped with a newer, better CPU architecture, do any of you think an AMD APU would be a good choice for the next Xbox?
 
The benefits of the AMD APU are:
Cost-effective due to the components being on one die, and being from the same designer. While not a top priority in a high-end gaming PC, it is important when trying to make a gaming console the average consumer can afford.
Power-efficient -- very important considering the 360's record of failing due to overheating, and being noisy in general.
 
The downsides are:
Weak CPU architecture (which again, could be resolved by a new architecture. C'mon, Bulldozer...)
Low memory bandwidth. However, this may not be as much of an issue as on a PC. The Xbox 360 already shares its 512 MB of GDDR3 memory between the Xenon processor and Xenos graphics chip. On a fixed system like a gaming console the system memory can be optimized for gaming. To further remedy the issue, a eDRAM chip can be added as a daughter die to the APU similar to how the Xenos has 10 MB of eDRAM.
 
I think it's very possible that the next Xbox will use an APU, if not one entirely designed by AMD. Microsoft certainly sees the benefit to such a design even now -- the current Xbox 360 S SKU has the processor and GPU integrated onto the same die.
			
			The performance of Llano is clear and, despite slow performance on the CPU side due to outdated architecture, the graphics performance is extraordinary when compared to traditional integrated graphics or even Sandy Bridge's HD Graphics 3000. If equipped with a newer, better CPU architecture, do any of you think an AMD APU would be a good choice for the next Xbox?
The benefits of the AMD APU are:
Cost-effective due to the components being on one die, and being from the same designer. While not a top priority in a high-end gaming PC, it is important when trying to make a gaming console the average consumer can afford.
Power-efficient -- very important considering the 360's record of failing due to overheating, and being noisy in general.
The downsides are:
Weak CPU architecture (which again, could be resolved by a new architecture. C'mon, Bulldozer...)
Low memory bandwidth. However, this may not be as much of an issue as on a PC. The Xbox 360 already shares its 512 MB of GDDR3 memory between the Xenon processor and Xenos graphics chip. On a fixed system like a gaming console the system memory can be optimized for gaming. To further remedy the issue, a eDRAM chip can be added as a daughter die to the APU similar to how the Xenos has 10 MB of eDRAM.
I think it's very possible that the next Xbox will use an APU, if not one entirely designed by AMD. Microsoft certainly sees the benefit to such a design even now -- the current Xbox 360 S SKU has the processor and GPU integrated onto the same die.
			
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