Intel 8086 -2
TVGA 8800CS
It took a while to find a working 8086 system (got mine in an IBM 8530). Nowadays a working 8086 is getting scarce and most things that are being sold in the XT-class are 8088's.
The difference between the 8086 and 8088 is small; 8086 has an 16-bit external bus instead of 8-bit for the 8088. The 8088 is actually a cut-down version of the 8086 to reduce costs in motherboards. After all an 8-bit bus on a motherboard is cheaper. Internally both CPU's run at the same speed but accessing components on the external bus can be slightly faster on the 8086. Despite the small difference between the 8086 and 8088 you cannot interchange these chips; never run an 8088 chip in an 8086 motherboard!
I always wondered how an 8086 would perform compared to a 8088. In general you barely notice any difference (a cheaper NEC V20 is even faster on the DOS-prompt). In the DOSBench benchmark the 8086 is slightly ahead on the 8088. See benchmarks below showing 8 points for 5MHz 8088, 16 points for an 8MHz 8088, 18 points for the 8MHz 8086 and 22 points for an 8MHz NEC V20. The TurboXT, with an 10MHz NEC V20, is in the lead with 27 points.
