A lot like the 5k86 P75 but then with normal print that says K5 PR75.... > Read more

The AMD K5 was AMD's first in-house x86 processor and was introduced in march 1996. The AMD K5 wasn't a big success at that time because it was delayed and AMD's 90MHz and 100MHz parts were introduced 2 full years later Intel's Pentium at 90MHz and 100MHz.

Architecture-wise the K5 was quite ambit... > Read more

Just like the PR75 but somewhat faster.... > Read more

.... > Read more

This is the second generation AMD K5 (with the 5k86 core instead of SSA/5). It has been optimized and the branch-predictor has been enabled so it should be faster per MHz than the original one. Because of this AMD used the PR number (Performance Rating) to indicate performance. The original AMD K5 P... > Read more

.... > Read more

Same as the K5 PR133 but 16MHz faster.

The K5 PR166 is the second fastest AMD K5. AMD manufactured very few PR200-models but quickly stopped to avoid creating a situation in which the K5-PR200 would compete with AMD's own, and then new, AMD K6.

All in ... > Read more

Identical to this AMD K5 PR166. This particular model has been manufactured in week 29 of 1997.

In practical terms the K5 PR166 was AMD's top of the line CPU. There are a few PR200 models on the market but they are very rare. AMD didn't want the K5 PR200 ... > Read more