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Cyrix Cx486 DLC
  Cyrix Cx486DLC-33GP black
  Cyrix Cx486DLC-33GP
  Cyrix Cx486DLC-33GP OEM
  Cyrix Cx486DLC-33GP OEM
  Cyrix Cx486DLC-40GP
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The Cyrix 486DLC Processor
The Cyrix 486DLC is pin compatible to the Intel i386DX. While the internals of the 486DLC are roughly equivalent to those in the i486SX, the bus interface is identical to that of the Intel 386DX, respectively to allow easy replacement of the Intel CPUs by the Cyrix chips. The overall execution speed is about same as with an i486SX, but if you add a matching Cyrix FPU, e.g. a Cyrix 83D87, the speed is about 50% faster than an i486DX running at the same frequency.
For more information on the Cyrix 486DLC/SLC processors please refer to Norbert Juffa's excellent DLC/SLC info summary and performance comparison.
Cyrix Cx486DLC-33GP black
Cyrix Cx486DLC-33GP black Top Side
Cx486DLC
Cx486DLC-33GP
(C)(M) 1992 Cyrix USA AD3224N
Cyrix Cx486DLC-33GP black Back Side
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Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:600,000
Voltage:5 V
Introduced:06/1992
Manufactured:week 24/1992
L1 Cache:1 KB
Package Type:Ceramic
PGA-132
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Cyrix Cx486DLC-33GP
Cyrix Cx486DLC-33GP Top Side
Cx486DLC-33GP
BB4248A
Cyrix Cx486DLC-33GP Back Side
(c)(M) 1992 Cyrix USA
JAPAN
A quite rare Version of this chip, a so called BB Version. An early piece and a little buggy.
 
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Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:600,000
Voltage:5 V
Introduced:06/1992
Manufactured:week 48/1992
L1 Cache:1 KB
Package Type:Ceramic
PGA-132
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Cyrix Cx486DLC-33GP OEM
Cyrix Cx486DLC-33GP OEM Top Side
Cx486DLC-33GP
FOR OEM USE ONLY
AB6303E
Cyrix Cx486DLC-33GP OEM Back Side
(C)(M)1992 Cyrix USA
JAPAN
A special OEM version of the above chip with golden Cyrix and Cx486DLC logo.
 
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Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:600,000
Voltage:5 V
Introduced:06/1992
Manufactured:week 03/1993
Made in:Japan
L1 Cache:1 KB
Package Type:Ceramic
PGA-132
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Cyrix Cx486DLC-33GP OEM
Cyrix Cx486DLC-33GP OEM Top Side
Cx486DLC-33GP
FOR OEM USE ONLY
BB6320B
Cyrix Cx486DLC-33GP OEM Back Side
(c)(M) 1992 Cyrix USA
JAPAN
A special OEM version of the above chip with golden Cyrix logo.
 
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Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:600,000
Voltage:5 V
Introduced:06/1992
Manufactured:week 20/1993
L1 Cache:1 KB
Package Type:Ceramic
PGA-132
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Cyrix Cx486DLC-40GP
Cyrix Cx486DLC-40GP Top Side
Cx486DLC-40GP
FOR OEM USE ONLY
AB6249Z
Cyrix Cx486DLC-40GP Back Side
(c)(M) 1992 Cyrix USA
JAPAN
Comment by Paul Collins (pi314aussie[at]yahoo.com):
Where is the 486 DLC2 -50 and the 486SLC2 -50? There was a turbo/upgrade card for the IBM PS/2 model 30/286. This IBM was a crap computer in standard guise. With the upgrage card raising the bar to 486 DLC2 -50 (but only running at 20MHz), the computer was still crap. Yes, the 486 DLC2 has the pin-for-pin out of a 386DX, and the brains/smarts of a 486SX2 inside. But with its 286 converted to 486, and its 10-clock doubled to 20-clock, the "real-world" MS-Windows apps. were only 10%-50% faster. Sure our benchmarking apps. agreed with the 8x (800%) boost, but those MS-apps. didn't run even 2x (200%) faster at all. So I say, once a "boat-anchor", always a boat-anchor. I read about the 486SLC2 -50 being a pin-for-pin out of a 386SX, with the brains of a 486SX2 inside, but never saw it implemented in any desktop computer, only the IBM laptops! The last of the last 386SX m/boards that I saw, were running the AMD386SX -40, with motherboard cache (8k). Since the AMD didn't have L1 cache, but the Cyrix/IBM did have L1 cache, why didn't they make no-name desktop m/boards with 25MHz clock for the SLC2 -50 chips???
 
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Core Frequency:40 MHz
Board Frequency:40 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:600,000
Voltage:5 V
Introduced:06/1992
Manufactured:week 49/1992
Made in:Japan
L1 Cache:1 KB
Package Type:Ceramic
PGA-132
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