processor upgrades Graphics Cards

Umax C600/200 Processor Upgrade Page

Umax C600/200 Facts at a Glance

  • Processor: 603e, 200MHz
  • L2 Cache: 256k
  • Drive: 2.1GB IDE
  • Int. Drive Bays: 4
  • Slots: 3PCI, 1 comm.
  • Installed RAM: 16MB, 144MB Max
  • RAM Slots: 2, 168-pin DIMM
  • Min RAM Speed: 70 ns
  • VRAM: 1MB (uses logic board RAM for video)
  • Modem: 28.8k (in comm slot)
  • CD-ROM: 8x, 12x (C600e/200)
  • Introduced: October 1996
  • Original Price $1,999

The Umax "C" series represented the low end of Umax's lineup. Also in the C series were the C500's which also sported the same 603e processor as the C600's. The C500's, however, used a less expandable desktop form factor. The C600's had plenty of room for expansion with 4 free internal drive bays. Other offerings from Umax included the higher powered "J" and "S" series. The C600/200 was the successor to the C600/180. The additional 20MHz only translated to an 8% improvement in the processor score. The C600 line reached its peak at 280MHz less than one year after the initial C600/180 was released. Aimed at the user with expansion in mind, it is surprising and unfortunate that VRAM was limited to 1MB and, since it was soldered onto the logic board, was not expandable. Those wanting to use a larger monitor and/or higher resolutions would have to spring for an extra graphics card to operate at a reasonable color depth. The C600/200 also lacked on-board Ethernet. On the positive side, the C600's, like the C500 series, came with an excellent SOHO software bundle which included; Grollier's Encyclopedia, Claris Works, Quicken, Now Utilities, Conflict Catcher and Adobe's Page Mill to name a few. Umax later included Connectix's Virtual PC in a C600/200vPC model. The internal CD-ROM came in two different speeds, 8x on the standard C600/200 or 12x on the C600e/200. While The 1MB VRAM was not upgradeable, the L2 Cache fortunately was, to either 512k or 1MB with offerings available from several vendors. Umax also offered the (then) revolutionary "inline" CacheDoubler card which sat sandwiched between the processor and the ZIF slot. Like the G3's backside cache we all know and love, the CacheDoubler card allowed higher speed access to the processor than the standard L2 cache.



Internal Links
External Links
  • Index of all online Macintosh hardware and software reviews
  • EveryMac - Spec Page for the C600/200
  • LowEndMac - The Unofficial SuperMac Support Site

There are currently two different G3 upgrade paths for this machine, one via the ZIF slot and the other via the L2 Cache slot. Currently Newer Technology uses the L2 Cache and MacTell uses the ZIF slot. This poses an interesting question, is one option preferable over the other? Assuming you had two cards that are equal in all other respects (speed, ratio, cache size etc.) which would you choose? Visit our Discussion Board and tell us your thoughts on the matter...

Below you will find the MacBench 4.0 results for most of the processor upgrades available for this machine. These results are what the individual manufactures publish for their cards. In other words the speed trials were run by the manufacturer. For an independent evaluation of these cards check the Processor Upgrade Page to see if we have results available. The bar graphs below express results as a percentage of improvement over the base machine, which receives a score of 100%. Further down the page you will find a table with the actual MacBench score.




MacBench Absolute Scores

Processor Upgrade Card MacBench 4.0 Processor Score
Umax C600/200 280
Newer Technology MaxPower G3/220/110/512k 700
MacTell GMax G3 240/240/512k 750
Newer Technology MaxPower G3/300150/512k 975
MacTell GMax G3 280/222/1MB 998
Newer Technology MaxPower G3/300/200/1MB 1100
Newer Technology MaxPower G3/400/200/1MB 1415