HD Era Doesn't Start Till Sony Says So
GamesIndustry.biz is reporting on comments from Phil Harrison, who says that consumers looking for an HD experience should wait for the PS3. From the article: "The true definition of HD is the three elements of the HD value chain - the display, the content and the hardware to play back that content ... and PlayStation and Sony is the only organisation that has all three bits of the value chain together."
The true definition of HD is something along the lines of "a tv set that's more than 640x480." You could say an HD chain is any old thing that can do HD plus any old HD TV. So, why is this even an article?
Generally, in console gaming, the Harddrive is shortened to HDD.
HDD=hard disk drive
HD=high definition
Too bad Sony already said so, when Sony President Kunitake Ando announced on stage with Steve Jobs that this would be the "Year of High Definition."
"It is our blasphemy which has made us great, and will sustain us, and which the gods secretly admire in us." - Zelazny
Uh, what? You clearly have no idea what NUMA means.
NUMA means that memory access times are non-uniform. In other words, longer for some addresses and shorter for others. Unified memory architecure means that all the memory in the system shares a common address space. You can't compare NUMA to UMA because they don't have anything do do with each other. A system can be NUMA and unified at the same time. It can also be non-unified and non-NUMA.
There is no documented evidence that I can find that the PS3 doesn't have a unified memory address space, dispite the NUMAness of it. In fact it looks like it probably *does* have a unified memory architecture. Also, from what I can tell of the architecture diagrams, it's only NUMA due to the necessity of cache coherancy between the cells (all cells talk to one central memory bank through a switch, cells accessing the same memory need to coordinate before accessing thus slowing down access to shared regions while non-shared regions will have one-step access), and a well written application will not experience the NUMA behavior very often.
That has to be one of the most arbitrary and stupid ways to distinguish between future gaming platforms. Pick on the quality and quantity of the games, and not on the specs that you don't understand anyway.
That still doesn't have anything to do with whether the architecture is NUMA or not. Neither of these platforms are going across multiple busses to hit their memory. Don't think of NUMA as a performance hit for some addresses in the cell architecture. Think of it as a performance boost for memory that's only being used by a single cell. All accesses go through a single switch fabric that (depending on the internals that Sony hasn't told the public about) could easily be faster than the bus model that the intel FSB in the 360 uses. Depending on how many transistors they were willing to dedicate to the problem, the switch architecture could theoretically be the superior interconnect in all respects.
Both of these boxes are powerful machines. The PS3 is a little cooler, but mostly because it's something new and interesting while the 360 is more traditional. At the end of the day, the games are going to look the same for the most part though.