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Some rumours on K9, the next generation of AMD processors

You can consider it a fake, as these distant rumours canít be proved for now. However, if you are still interested, you might want to know of probable technological features of next-generation AMD processors — K9.
  • It seems, K9 will have an integrated DDRII controller
  • Processor will feature speculative branching (up to 8 branches), and probably some rollback cache in case a branch is predicted wrong...
  • Processor will probably have 3 (!) fully-fledged ű87 blocks, 3 SSE2 and 2 ALU blocks. Decoders will be capable of organizing them by three (FPU + SSE2 + ALU) for maximum performance.
  • K9 will possibly utilize AMDís old patent, describing integrated Peltier element packaging
  • Processor might have several buffers, a kind of L0 cache. For example, a 4Kb buffer will precede and follow FPU for making its operation (SSE2, 3DNow) continuous.
  •  9 might also support L3 cache for commented code. I.e. decoder will be capable of acting right in L3 inserting comments into special fields.
  • Pipeline will probably feature 15 ALU stages, 20 FPU stages.
  • I-cache and decoder will perform at double speed.
  • AMD might situate L3 cache on crystal using 1T-SRAM.
  • Hyper Transport II Ė expected to be something like Octal Data Rate (Yellowstone) with about 1GHz carrier clock. As a result throughput will reach 25Gb/s in 16x16 configuration.
  • Interprocessor protocol (MOESI) will be updated and improved.
  • The very fast bus will provide a very interesting feature of sharing free executive units between two processors. I.e. if the first has FPU loaded and the second has it free, then the latter can handle requests from the decoder of the former.
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