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- From: J056600@LMSC5.IS.LMSC.LOCKHEED.COM
- Subject: Re: AMD rubbish????
- Message-ID: <92349.30853.J056600@LMSC5.IS.LMSC.LOCKHEED.COM>
- Sender: news@iscnvx.lmsc.lockheed.com (News)
- Organization: Lockheed Missiles & Space Company, Inc.
- Date: Mon, 14 Dec 92 17:10:31 GMT
- Lines: 79
-
- In <1992Dec13.052027.15781@ucsu.Colorado.EDU>:
-
- >MSD8227@LMSC5.IS.LMSC.LOCKHEED.COM writes:
-
- >>>I'm thinking of buying a PC, either a AMD386DX40 or an Intel 486SX25 - 33. I'
- >>>been told that the AMD chip is unreliable and would appreciate some feedback
- >>>Comments on relative speed between the machines also would be helpful.
-
- >>The AMD386DX40 is a knockout, a home run, a slam dunk! My brother
- >>has a machine with this chip. I am very impressed.
-
- It's a damn good chip.
-
- >>Do yourself a favor get the AMD machine, ok? I still can't figure
- >>out why anyone would consider buying a 486SX.
-
- I considered it, and I did. More details to follow. And don't forget that the
- 486SX still has that internal 8K cache.
-
- >I hope I'm not too late, but I have something to add.
- >First, consider what's most important to you: price or performance.
-
- >If you chose price, then get the 386-40. If you chose performance,
- >go with a 486SX-25 or above.
-
- If you want a 486SX/25, why not a 33? They're only about $50 to $75 more than
- the 25. That's a small price to pay for a 33% performance boost.
-
- >I won't put down the 386DX-40; I have one because I chose price over
- >performance and got a great deal. You get a lot of power for the money.
-
- Yes you do. In fact I was debating between the 386/40 and the 486SX/25, not
- being able to justify the cost of the next step up--the 486DX/33. When I heard
- that the 486SX/33 was released with an extra socket for easy upgrades to a
- DX2/66, that settled matters immediately.
-
- Of course, I had an eye on the future. The 386/40 is and will remain the
- de facto entry-level machine for quite some time.
-
- >I also won't put down the 486SX. Granted, when Intel first brought them
- >out (the DX with a crippled math co-processor) they seemed ridiculous.
- >Current 486SXs, however, have their own "mold." The only thing you're
- >missing as compared to the 486DX is the math coprocessor-but the AMD
- >chip doesn't have one either. This makes raw performance better on the
- >486SX.
-
- The original 486SXs were "crippled" 486s. Soon Intel realized that it had a
- potential marketing bonanza: Many people want 486 performance but don't need
- the co-processor (I'm one such person). For me, the 486SX was *the* answer.
- The difference between a 486DX/33 and a 486SX/33 is perhaps $250 to $300.
- By the time I need a co-processor (if I ever do), I'll bet that the Overdrive
- will cost under $300. So for the same price as a 486DX/33, I'd then have a
- 486DX2/66, and I'd never suffer worse performance than I'd get from a DX/33.
- For me it was a win-win situation (and a no-brainer of a decision), but only
- once clock speeds of the 486SX exceeded 25 MHz (i.e. clearly faster than a
- 386DX/40).
-
- >Some 386 boards are upgradeable; nearly all 486 motherboards can be
- >upgraded though. This is another plus for the 486SX.
-
- I think it's easier for most 486SX models--especially since you can go
- straight to a DX2 at double speed (SX/25 to DX2/50 and SX/33 to DX2/66) without
- needing to replace a clock crystal or any other stuff on the motherboard.
-
- >For price, buy 386DX-40.
- >For speed, buy 486SX-25 or 33.
-
- Once the "newness" of the 486SX/33 is gone and the price comes down accord-
- ingly, there will be little difference between the 386/40 and 486SX/33. It's
- only (perhaps) a $150 difference now, and should come down in the future.
-
- I just bought a system with a 486SX/33. I'm very pleased with it. I'm sure
- I made the right decision with it.
-
-
- Tim Irvin
- *****************************************************************************
- "Giving money and power to government is like giving whiskey and car keys to
- teenage boys." -- P.J. O'Rourke
-