Reply 60 of 64, by sliderider
- Rank
- l33t++
wrote:wrote:wrote:I just purchased a large lot of 70+ 386/486/586 class CPUs, mostly Intel, but some Cyrix and AMD.
Are some Intel 486 SX/DX/DX2 models more rare/collectable than others?
The 486dx-50 (not dx2-50) was quite rare. This is because the clock ran at 50Mhz rather than being 25Mhz and then doubled internally. It was on par with the performance of a 486dx2-66.
That's actually an urban legend.
I'll post my numbers this evening.
DX2-66 should be around 10% faster because in addition to a faster internal clock, Intel also added some additional cache that the DX-50 doesn't have so it doesn't have to communicate with main memory as often, nullifying the DX-50's bus speed advantage. (At least I remember reading that someplace a while back).