AMD releases B3 Phenom's, Tricore 8000 seriesAMD today announced that it’s new B3 stepping 4x core (Quad) and B2 stepping 3x core (Tri) Phenom has begun shipping. The B3 stepping is a replacement for the B2 stepping Phenom which had the TLB bug. What is the TLB Bug you ask? All AMD quad-core processors utilize a shared L3 cache. In instances where the software uses nested memory pages, this processor will experience a rare condition. The erratum is a chip-level issue involving the TLB logic for the L3 cache that can cause system hangs in specific circumstances. AMD has a [bios] fix for the problem, but it degrades performance. AMD has stated publicly that the workaround can lower performance by as much as 10%, although one source characterized the performance hit to TR as 10-20%.AMD has announced that there are 8 new SKU’s. 2 Tri-core and 6 Quad core variants. X3 Core 8000 Series:-8400 (2.1 GHz @ 95w)-8600 (2.3 GHz @ 95w)X4 Core 9000 Series:-9850 (2.5 GHz @ 125w)-9750 (2.4 GHz @ 125w) / (2.4 GHz @ 95w)-9650 (2.3 GHz @ 95w)-9550 (2.2 GHz @ 95w)-9100e (1.8 GHz @ 65w)All xx50 series are B3 stepping while the 9100e and Tri-cores are still B2 stepping, although this is likely to change quickly as B3 Tri-core are expected Q2 08. Read full story...
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