Epson Progression Product Support Bulletin page 10

What configurations are available?
Q8.
A. The Epson Progression 4 is available with a choice of one of three
different processors:
486SX/33
486DX2/66
Each model processor comes with either of the following:
3.5" 1.44 FDD
3.5" 1.44 FDD and 120MB HDD
3.5" 1.44 FDD and 240MB HDD with MS-DOS 5.0 and Windows 3.1
pre-installed
Q9. What are the differences between the 486SX/33, 486DX2/50, and the
486DX2/66?
A.
The 486SX/33 microprocessor is a 32-bit processor which runs at 33MHz
internally and externally, and incorporates an 8KB internal cache. The
internal math-coprocessor is disabled.
The 486DX2/50 microprocessor is also a 32-bit processor which
runs at 50MHz internally and 25MHz externally, and incorporates 8KB of
internal cache. The internal math-coprocessor is active.
The 486DX2/66 microprocessor is also a 32-bit processor which
runs at 66MHz internally and 33MHz externally, and incorporates 8KB of
internal cache. The internal math-coprocessor is active.
(ODP processor upgrade available for this model only)
PSB No: S-0160
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