Athlon processor and north/-southbridge seemed very easy to understand. http://www.hardwarecentral.com/graphics/screenshots/2741_1.jpg
But now when I read new article about Opteron and Xeon I'm quite confused.
(this article was on finnish language so I took only the pictures)
1.) Does north-/southbridge exist any more in Opteron?
2.) The article said that the maximum memory bus speed in XEON would be 6,4Gbytes/s but northbridge is too slow. How is that 6,4Gbytes/s calculated?
3.) In dualcore Opteron both cores have their own memory buses. If motherboard has 4 slots for DIMM then are those diveded that Core1 has two slots and core2 has the other two? So should I pay attention to which slot I insert RAM in future?
4.) If XEON has bus speed of 800MHz then FSB would be 200 MHz and to achieve the 2,8GHz the multiplier would be 14. Is that correctly calculated?
5.) If that Opteron is 2,4GHz and the memory bus speed is 2,4Ghz how can I calculate the FSB from that? Would FSB communicate only with AGP anymore in this case?
6.) Opteron has 1MB cache for both cores (1+1MB) and XEON has 2MB cache for both cores (2+2 MB). Was the AMD's key to victory the fast memory bus and Intel only tried it's best to increase the L1 cache?
7.) Is the main reason for lower power consumption on AMD the lower frequency, what would the other reasons be?
8.) Article says that the XEON memory controller is on motherboard, does that mean that NB is the memory controller?
10 points each.