AMD Am486

This page will show all objects that classify as AMD Am486, and if possible sorted on production date.


Click on the blue name(s) below for detailed information, pictures and benchmarks (if available).

View processor details AMD Am486 DX40 '24361'
AMD Am486 DX40 '24361'

In the picture you see the 40MHz Am486 fitted onto an Octek motherboard. A fine combination for most people in late 1993 because it was affordable. Performance wise it was fine although one could get faster systems like the DX2/66 or even the first Pentium's :).

The Octek motherboard in question ... > Read more

View processor details AMD Am486 DX40 '24361'
AMD Am486 DX40 '24361'

AMD's 40MHz 386 ran very well and was quite fast for a 386 because the front-side-bus (FSB) did its job at 40MHz as well. The Am486 at 40MHz was less successful. Ideally the 486 was plugged into a motherboard with Vesa Local Bus (VLB) slots. These slots were designed to run at 25MHz or 33MHz but cou... > Read more

View processor details AMD Am486 DX2/66 '24361'
AMD Am486 DX2/66 '24361'

A D-stepping of the original AMD Am486DX2/66 with package number 24361 made by Kyocera. The first models didn't have any additional numbers in it's model name. Later AMD made different versions which had write-back cache and a slightly modified chip due to a lawsuit with Intel.

I have different v... > Read more

View processor details AMD Am486 DX2/50 '24361'
AMD Am486 DX2/50 '24361'

Same as the 66MHz part but somewhat slower.... > Read more

View processor details AMD Am486 DX2/66 '24361'
AMD Am486 DX2/66 '24361'

AMD's version of the 486DX2/66. Runs practically the same as the Intel 486DX2/66. Usually the Intel part is a tiny bit faster but it's not noticeable in real life.... > Read more

View processor details AMD Am486 DX2/66 '25220'
AMD Am486 DX2/66 '25220'

An E6-stepping of the AMD Am486DX2/66 processor. It has package number 25220 made by Kyocera. This is the 'N' version of the CPU meaning that it doesn't have Intel ICE. See the description of this Am486 for more information about the different numbers.... > Read more

View processor details AMD Am486 DX2/66 '25220'
AMD Am486 DX2/66 '25220'

Identical to this Am486 except that this CPU is packaged in the Sumitomo-plant. Most Am486 CPU's are packaged by Kyocera. The symbol in the lower right corner indicates the plant.... > Read more

View processor details AMD Am486 DX2/80 '25253'
AMD Am486 DX2/80 '25253'

AMD's 80MHz 486, nothing spectacular actually. However, Interesting to see is that Intel never made DX40 or DX2/80 486 processors. They always stuck to the more common front-side-bus (FSB) clock frequencies that were more reliable in the old days. At the time that the 486 was new it was difficult t... > Read more

View processor details AMD Am486 DX4/100 '25253'
AMD Am486 DX4/100 '25253'

The normal Am486 DX4/100 with write-through L2-cache. This version is slower than the SV8B marked Enhanced Am486.... > Read more

View processor details AMD Am486 DX2/66 '25220'
AMD Am486 DX2/66 '25220'

An 1995 model with NV8T marking. This is 8KB write-through L1-cache. Should have identical performance to the CPU without additional markings.

See this Am486 for more information about the processor markings.... > Read more

View processor details AMD Am486 DX2/80 '25253'
AMD Am486 DX2/80 '25253'

Much like my other Am486 DX2/80 except that this one doesn't have the HEATSINK REQ'D marking.... > Read more

View processor details AMD Am486 DX2/66 '25398'
AMD Am486 DX2/66 '25398'

Just like this 486 but with write-back L1-cache rather than write-through. The SV8B marking on this CPU indicate it has the faster write-through cache. This CPU is also known as Enhanced Am486.... > Read more

View processor details AMD Am486 DX4/120 '25398'
AMD Am486 DX4/120 '25398'

One of the faster 486 processors. The 120MHz model is up to speed with it's 40MHz front side bus (FSB). Unfortunatly the 40MHz FSB is not always a big improvement over the 33MHz FSB. In my case the DX4/120 doesn't run Doom faster than a DX4/100 because the PCI bus is clocked lower when using the 40M... > Read more

View processor details AMD Am486 DX4/100 '25398'
AMD Am486 DX4/100 '25398'

Just like the other Am486 CPU's but with the 100MHz-barrier broken.

This model is also known as the Enhanced Am486DX4-S 100MHz because is has write-back L1-cache. CPU's with write-back cache are slightly faster than CPU's with write-through ... > Read more

View processor details AMD Am486 DX4/100V '?'
AMD Am486 DX4/100V '?'

A 0,35 micron 3,45v Am486DX/4 CPU with laser engraved markings.... > Read more