This page will show all objects that classify as AMD K5. The K5 has been made by Advanced Micro Devices, a multinational semiconductor that develops microprocessors, chipsets and graphic processors (ATi). AMD is the second largest microprocessor manufacturer after Intel and has active since 1969.
In 1982 AMD signed a contract with Intel to become a licensed second-source manufacturer. IBM wanted the Intel 8086/8088 but IBM's policy stated that at least two suppliers should be available. This is why the first AMD processors always have 'Intel' printed somewhere. After a while AMD didn't get the license to produce Intel processors anymore and thus AMD started cloning the 386 and launched the Am386. Since the AMD K5, AMD didn't clone the Intel processor but started developing on their own. The K5 wasn't a big success but thanks to NexGen that merged into AMD the K6 could be made. AMD could compete and has a range of processors today including six-core Opterons and a good performing quad-core for the desktop called the Phenom II X4.
AMD also acquired ATi to get in-house graphics chips. These are integrated in chipsets to create cheap motherboard solutions. In the future (The Future is Fusion as AMD calls it) the plans are to integrate the graphics chip into the processor.
AMD K5 PR75 '25600'
A lot like the 5k86 P75 but then with normal print that says K5 PR75. > Read more
Just like the PR75 but somewhat faster. > 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 ambitious. The die consists of 4,3 million transistors which is quite a lot more compared to the Pentium P54C that has 3,3 million transistors. Because of this large design the K5 didn't scale well so it took AMD quite some effort to get faster parts on the market. > Read more
This is the second generation AMD K5 that is based on the 5k86 core. It has been optimized a bit and 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 PR75, PR90 and PR100 ran at respectively 75MHz, 90MHz and 100MHz. This K5 PR133 works at 100MHz and the PR166 at 116MHz.
Don't confuse the 5k86 core with the name of the AMD 5k86 P75 which is just an older AMD SSA/5 core but with a different name attached to the CPU. > Read more
Same as the K5 PR133 but 16MHz faster. > Read more