As we already reported , the loss in stability of the four core processors phenom X4 was under specific conditions due to the TLB error , this forced AMD to detain the announcement of related opteron processors . In order to solve this error , AMD proposed to turning off a certain part of processor through the motherboard bios , which resulted in performance loss . Finally, this TLB error was fixed in B3 stepping ( now used in all 65 NM phenom processors ) .
According to Intel document the appropriate error is also present in core i7 processors . Intel representatives reported the following:
In other words, if Intel processors contained some critical errors, connected with TLB buffer , then they are corrected with core 2 Duo. The same appeared in core i7 processors and were corrected after micro-code update . Any processors stepping contains some errors, this is unavoidable. Producer simply gets rid from those errors with micro-code update and with the release of new stepping.
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