The Bottom Line RailGun 250/166/1MB sample card has the fastest cache chips of G3 CPU card I've seen, which makes me wonder why they didn't include 1:1 cache speed extension (unless cache chip speed may vary by production lot). It ran with the PowerTower Pro motherboard cache installed, performed well and included a good manual.

Price/Performance:
At $699.95, it's the lowest cost 1 MB Cache G3 CPU card I've tested. If the review card I received is typical, then the Railgun is a great value. I rate the price/performance a 9.

Summary of Ratings:

• Benchmarks: 9
• Appl. Tests: 9
• SW/Controls: 6
• Documentation: 9
• Features/Specs: 9
• Price/Performance: 9
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  Total: 51 (of possible 60)

Based on these scores, you can apply your own weighting of each category to determine if this card is right for your needs. Ratings shown reflect the market as of the review date, with prices dropping and speeds rising, they may not be valid for comparison in the future.

Where To Buy:
The Railgun is only available direct from Bottom Line. As of 5/03/98, the price was $699.99. [5/99 Update: These cards are no longer made but Bottom Line had been clearing some out recently for about half the original price]

Return policies vary by dealer, so be sure to ask about before ordering. The product comes with a 2-year warranty limited warranty. Contact Bottom Line for pre-sale questions.

I hope this review has provided you with sufficient information of all aspects of the product, but if you have any further questions or comments you may contact me by email at: news@xlr8yourmac.com.

For reviews of other CPU cards, or the many other types of upgrades I review, see my Reviews/Features page.