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1994: Intel
  week 05, 1994: Intel OverDrive ODPR486DX-33 (V3.0)
  week 05, 1994: Intel Pentium A80501-60 Goldcap, 'Processor'-Marking
  week 07, 1994: Intel OverDrive ODPR486DX-25 (V3.0)
  week 17, 1994: Intel A80486DX-33, DX Logo (SL enhanced)
  week 17, 1994: Intel OverDrive ODPR486DX-33 w/o Cooler
  week 18, 1994: Intel A80486DX2-66
  week 19, 1994: Intel A80486DX4-100
  week 19, 1994: Intel A80486SX-33
  week 19, 1994: Intel A80860XP-50
  week 20, 1994: Intel A80486DX-33, DX Logo
  week 28, 1994: Intel SB80486SX-33
  week 30, 1994: Intel A80960CF-30
  week 35, 1994: Intel OverDrive DX4ODPR100 (V1.0)
  week 37, 1994: Intel KU80386EX25
  week 37, 1994: Intel A80486DX2-50
  week 37, 1994: Intel FC80486DX4-75 Mobile Module
  week 37, 1994: Intel OverDrive DX2ODPR66 (V3.0)
  week 37, 1994: Intel KU80960CA-25
  week 39, 1994: Intel A80486DX4-75
  week 45, 1994: Intel A80486DX2-66 (write-back cache)
  week 47, 1994: Intel Pentium A80501-60 Goldcap
  week 50, 1994: Intel OverDrive DX2ODP66 (V4.0)
  week 50, 1994: Intel Pentium A80502-100 Goldcap
» Intel overview
» all chips made in 1994
 
Intel OverDrive ODPR486DX-33 (V3.0)
Intel OverDrive ODPR486DX-33 (V3.0) Top Side
ODPR486DX-33
C4050331
SZ878 V3.0
(M)(C)1989 1992
Intel OverDrive ODPR486DX-33 (V3.0) Back Side
8345591GCB
A4
EE 04
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 05/1994
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ878
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel Pentium A80501-60 Goldcap, 'Processor'-Marking
Intel Pentium A80501-60 Goldcap, 'Processor'-Marking Top Side A80501-60
SX835
L4050009
INTEL (M) (C) 1992
Intel Pentium A80501-60 Goldcap, 'Processor'-Marking Back Side 53430560AA
MALAY
F 405
INTEL (M) (C) 1992
An early version of the Pentium 60 with golden heatspreader and 'PROCESSOR'-marking under the 'Pentium' logo. This CPU has the FDIV bug.
 
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Core Frequency:60 MHz
Board Frequency:60 MHz
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:3,100,000
Circuit Size:0.80
Voltage:5 V
Introduced:March 22, 1993
Manufactured:week 05/1994
Made in:Malaysia
L1 Cache:8+8 KB
CPU Code:Pentium
P5
Intel S-Spec: SX835
Package Type:Ceramic
PGA-273
Goldcap
Socket: 4
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Intel OverDrive ODPR486DX-25 (V3.0)
Intel OverDrive ODPR486DX-25 (V3.0) Top Side
ODPR486DX-25
C4070536
SZ877 V3.0
(M)(C)1989 1992
Intel OverDrive ODPR486DX-25 (V3.0) Back Side
9343929GCA
A4
EE 07
Upgrades 25 MHz Intel 486DX and SX based systems to 50 MHz.
 
add comment
Core Frequency:50 MHz
Board Frequency:25 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 07/1994
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ877
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel A80486DX-33, DX Logo (SL enhanced)
Intel A80486DX-33, DX Logo (SL enhanced) Top Side
A80486DX-33
C4170154
&E5V1X SX810
INTEL (M) (c) '89 '92
Intel A80486DX-33, DX Logo (SL enhanced) Back Side
54070790CC
A4
EE 17
'&E' markings: SL enhanced CPU (Processor includes power management features).
 
add comment
Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,185,000
Circuit Size:1.00
Voltage:5 V
Introduced:May 7, 1990
Manufactured:week 17/1994
L1 Cache:8 KB
CPU Code:i486 DX
P4
Intel S-Spec: SX810
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel OverDrive ODPR486DX-33 w/o Cooler
Intel OverDrive ODPR486DX-33 w/o Cooler Top Side
ODPR486DX-33
SZ698
C2522231 B1
INTEL (M) (c) 1989
Intel OverDrive ODPR486DX-33 w/o Cooler Back Side
C2441524CA
A4
BM 52
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 17/1994
L1 Cache:8 KB
CPU Code:i486 ODPR
P4T
Intel S-Spec: SZ698
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel A80486DX2-66
Intel A80486DX2-66 Top Side
A80486DX2-66
L4180048
&E5V1X SX807
INTEL (M) (c) '89 '92
Intel A80486DX2-66 Back Side
'&E' markings: SL enhanced CPU (Processor includes power management features).
 
Comment by Paul Collins (pi314aussie[at]yahoo.com):
When this chip came out, I had a "huge" form-factor (full-AT-size) 486 M/Board. It had sixteen SIMM sockets, but had no clock-crystal socket. This was before end-user jumpers for clock generators were around, thus I was locked into 33MHz, due to the crystal being soldered. I tested a DX2-66 CPU in this giant M/Board, but the (very very) early BIOS didn't let it work. If I wanted to use a 66MHz chip, then I needed a new M/Board that supported such things. By then, the newer M/Boards also had settings for DX4's as well.
The DX4-100 soon followed into the market. As a result, I bypassed the i486DX2-66 altogether, and bought the latest and greatest i486DX4-100. So, I never experienced to joy of owning a -66.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,200,000
Circuit Size:0.80
Voltage:5 V
Introduced:August 10, 1992
Manufactured:week 18/1994
L1 Cache:8 KB
CPU Code:i486 DX2
P24
Intel S-Spec: SX807
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel A80486DX4-100
Intel A80486DX4-100 Top Side
iCOMP index=435
A80486DX4-100
C4190405
&E 3VOLT SX900
INTEL(m)(c)'89'93
Intel A80486DX4-100 Back Side
24061650CB
A4
EE 19
Donated by Christian Lederer. Thanks a lot!  
Comment by Paul Collins (pi314aussie[at]yahoo.com):
When this chip was the latest and greatest new kid on the block, I upgraded from my then 486 33MHz system. I had to replace my then M/Board, as it didn't support "ANY" clock-multiplier CPUs. see comment for A80486DX2-66.
Within months of having my new speed, the AMD 5x86 and Cyrix 5x86 came on sale. The AMD was a clock-quadrupler. The Cyrix was still a clock-tripler, but advanced 5th generation style. Maybe the AMD should be more rightly called an AM486DX5-133, since inside it is still identical to all other 486's. My brand new M/Board's BIOS didn't know these two new chips, so I bought the AMD -133 chip and got a BIOS update at the same time. The AMD behaved unreliably in my system, so I exchanged it with the shop for the Cyrix. (The BIOS update included both). So to end my story, I only got about two-months use from this Intel A80486DX4-100 CPU. N.B. It is nearly a decade later, and I'm still using Cyix 5x86 CPU's.
 
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Core Frequency:100 MHz
Board Frequency:33 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,600,000
Circuit Size:0.60
Voltage:3 V
Introduced:March 7, 1994
Manufactured:week 19/1994
L1 Cache:8 KB
CPU Code:i486 DX4
P24C
Intel S-Spec: SX900
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel A80486SX-33
Intel A80486SX-33 Top Side
A80486SX-33
L4190737
&E5V1X SX797
INTEL (M) (C)'89'92
Intel A80486SX-33 Back Side
add comment
Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,185,000
Circuit Size:1.00
Voltage:5 V
Introduced:04/1991
Manufactured:week 19/1994
L1 Cache:8 KB
CPU Code:i486 SX
P23
Intel S-Spec: SX797
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel A80860XP-50
Intel A80860XP-50 Top Side
i860 XP
A80860XP-50
L4190197
SX657
(M)(C)1988 1990
Intel A80860XP-50 Back Side
94075906AC
MALAY
A 419
add comment
Core Frequency:50 MHz
Board Frequency:50 MHz
Data bus (ext.):64 Bit
Address bus:64 Bit
Transistors:2,500,000
Circuit Size:0.80
Introduced:1988
Manufactured:week 19/1994
L1 Cache:16+16 KB
CPU Code:N11
Intel S-Spec: SX657
Package Type:Ceramic
PGA-262
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Intel A80486DX-33, DX Logo
Intel A80486DX-33, DX Logo Top Side
A80486DX-33
L4201158
SX729
INTEL (M)(C)1989
Intel A80486DX-33, DX Logo Back Side
7407438FAA
MALAY
CJ 420
INTEL (M)(C) 1989
Donated by Jorge Segovia. Thanks a lot!  
add comment
Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,185,000
Circuit Size:1.00
Voltage:5 V
Introduced:May 7, 1990
Manufactured:week 20/1994
L1 Cache:8 KB
CPU Code:i486 DX
P4
Intel S-Spec: SX729
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel SB80486SX-33
Intel SB80486SX-33 Top Side
SB80486SX-33
L4282009
&E3V1X SX855
INTEL (M) (C)'89'92
Intel SB80486SX-33 Back Side
add comment
Core Frequency:33 MHz
Board Frequency:33 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,185,000
Circuit Size:1.00
Voltage:3.3 V
Introduced:04/1991
Manufactured:week 28/1994
L1 Cache:8 KB
CPU Code:i486 SX
P23
Intel S-Spec: SX855
Package Type:Plastic
PQFP-208
Socket: 1/2/3
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Intel A80960CF-30
Intel A80960CF-30 Top Side
A80960CF-30
L4302570
SW215
(M)(C)1989 1992
This CPU is inside my HP Envizex X-terminal.
 
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Core Frequency:30 MHz
Board Frequency:30 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Introduced:1989
Manufactured:week 30/1994
L1 Cache:4+1 KB
Intel S-Spec: SW215
Package Type:Ceramic
PGA-168
top of page
Intel OverDrive DX4ODPR100 (V1.0)
Intel OverDrive DX4ODPR100 (V1.0) Top Side
DX4ODPR100
C43507058
SZ926 V1.0
INTEL(M)(C) '89'93
Intel OverDrive DX4ODPR100 (V1.0) Back Side
24231670-Z
A4
36
Upgrades 33 MHz Intel 486DX & SX based systems to 100 MHz.
 
add comment
Core Frequency:100 MHz
Board Frequency:33 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:10/1994
Manufactured:week 35/1994
L1 Cache:16 KB
CPU Code:i486 DPR
P4T
Intel S-Spec: SZ926
Package Type:Ceramic
PGA-168
Socket: 1/2/3
top of page
Intel KU80386EX25
Intel KU80386EX25 Top Side
KU80386EX25
L4371441A
SA
(M)(C)'85'91
i386 EX
Intel KU80386EX25 Back Side
842862F
AB FS37
add comment
Core Frequency:25 MHz
Board Frequency:25 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:275,000
Circuit Size:0.80
Voltage:5 V
Manufactured:week 37/1994
CPU Code:i386 EX
Package Type:Plastic
PQFP-132
top of page
Intel A80486DX2-50
Intel A80486DX2-50 Top Side
A80486DX2-50
L4370115
&E5V1X SX808
INTEL (M) (c) '89 '92
Intel A80486DX2-50 Back Side
94234804AA
MALAY
ET 437
INTEL (M)(C) 89 92
Comment by Paul Collins (pi314aussie[at]yahoo.com):
This chip was the great saviour for OEMs and system builders. Unlike the DX-50, the DX2-50 didn't demand a heatsink for use. Unlike the DX-50, the DX2-50 didn't demand OEMs to build quality advanced 50MHz-throughout M/Boards. Many early VESA VL-BUS add-on cards would mis-behave when the M/Board was running at 50MHz-throughout. By building a system based on a DX2-50, system builders could sell stable reliable 50MHz-CPU-systems that were only 3% to 15% slower in "real-world" apps. than when using same-for-same BIOS and logic M/Boards, built using DX-50 CPUs. Any DX2-50 end-consumer system (with VL-BUS cards) always ran all programs faster than any 33/40MHz end-consumer system using only 16-bit ISA cards. Thus the DX2 -50 was the saviour.
N.B. once the DX2-66 was common, slower 50MHz systems were "always" built with the DX2-50 or (rarely) the SX2-50. The DX-50 systems fell into non-supply except for the vary rare EISA BUS M/boards (they were mostly 50MHz, except for the EISA circuitry, which was still at 33MHz even then).
With Intel supplying the DX2-50 cheaper than it supplied the DX-50, it was one really really great chip.
 
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Core Frequency:50 MHz
Board Frequency:25 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,200,000
Circuit Size:0.80
Voltage:5 V
Introduced:March 3, 1992
Manufactured:week 37/1994
L1 Cache:8 KB
CPU Code:i486 DX2
P24
Intel S-Spec: SX808
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel FC80486DX4-75 Mobile Module
Intel FC80486DX4-75 Mobile Module Top Side
intel DX4
iCOMP index=319
FC80486DX4-75
4370668
& 3VOLT SX883
INTEL (M)(C) '89'93
Intel FC80486DX4-75 Mobile Module Top Side Intel FC80486DX4-75 Mobile Module Back Side
This CPU-module is the processor inside my IBM Thinkpad 755C from 1995. To take a picture of it about 40 screws and lots of circuit boards, cables, plugs and shieldings had to be removed inside the Thinkpad - hard work.
 
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Core Frequency:75 MHz
Board Frequency:25 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,600,000
Circuit Size:0.60
Voltage:3 V
Introduced:March 7, 1994
Manufactured:week 37/1994
L1 Cache:8 KB
CPU Code:i486 DX4
P24C
Intel S-Spec: SX883
Package Type:Plastic
PQFP-208
top of page
Intel OverDrive DX2ODPR66 (V3.0)
Intel OverDrive DX2ODPR66 (V3.0) Top Side
DX2ODPR66
C4370275
SZ904 V3.0
(M)(C)1989 1992
Intel OverDrive DX2ODPR66 (V3.0) Back Side
94394054CC
A4
AG 49
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
There is not much difference between an DX2ODPR66 and a standard 486DX2-66. Intel was marketing their speed doubling technology in different products. DX2 chips were sold to Intel OEMs and OverDrive chips were sold directly to end-users. The DX2 chips typically have no built-in heatsink and have a distinctive DX2 label. The OverDrive chips have a distinctive OverDrive label and may have a built-in heatsink.
The 'V3.0' and 'V4.0' marks the third and fourth stepping of the processor since introduction.
 
References:  pcguide.com  Intel
 
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Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 37/1994
L1 Cache:8 KB
CPU Code:i486 ODP
P23T
Intel S-Spec: SZ904
Package Type:Ceramic
PGA-168
Cooler
Socket: 1/2/3
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Intel KU80960CA-25
Intel KU80960CA-25 Top Side
KU80960CA-25
L4371787 D2
(M)(C)1989 1994
Intel KU80960CA-25 Back Side
943050506
AC BB 37
add comment
Core Frequency:25 MHz
Board Frequency:25 MHz
Data bus (ext.):32 Bit
Address bus:32 Bit
Introduced:1989
Manufactured:week 37/1994
Package Type:Plastic
PQFP-196
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Intel A80486DX4-75
Intel A80486DX4-75 Top Side
Intel DX4
iCOMP index=319
A80486DX4-75
C439106W
&E 3VOLT SX884
INTEL (M)(C) '89'93
Intel A80486DX4-75 Back Side
24290790CA
A4
39
add comment
Core Frequency:75 MHz
Board Frequency:25 MHz
Clock Multiplier:3.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,600,000
Circuit Size:0.60
Voltage:3 V
Introduced:March 7, 1994
Manufactured:week 39/1994
L1 Cache:8 KB
CPU Code:i486 DX4
P24C
Intel S-Spec: SX884
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel A80486DX2-66 (write-back cache)
Intel A80486DX2-66 (write-back cache) Top Side
A80486DX2-66
L4452189
&EW5V1X SX955
INTEL (M)(C) '89 '93
Intel A80486DX2-66 (write-back cache) Back Side
94356286NA
MALAY
ES 446
INTEL (m) (c) 89 93
'&EW' markings: SL enhanced CPU (Processor includes power management features) with write-back cache.
 
add comment
Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Transistors:1,200,000
Circuit Size:0.80
Voltage:5 V
Introduced:August 10, 1992
Manufactured:week 45/1994
Made in:Malaysia
L1 Cache:8 KB
CPU Code:i486 DX2
P24
Intel S-Spec: SX955
Package Type:Ceramic
PGA-168
Socket: 1/2/3
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Intel Pentium A80501-60 Goldcap
Intel Pentium A80501-60 Goldcap Top Side A80501-60 SX974
ICOMP INDEX=510
L4473529-0948
INTEL (M) (c) 1992
Intel Pentium A80501-60 Goldcap Back Side 94421454NA
MALAY 452 R
INTEL (M) (c) 1992
A80501-60
SX974
add comment
Core Frequency:60 MHz
Board Frequency:60 MHz
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:3,100,000
Circuit Size:0.80
Voltage:5 V
Introduced:March 22, 1993
Manufactured:week 47/1994
Made in:Malaysia
L1 Cache:8+8 KB
CPU Code:Pentium
P5
Intel S-Spec: SX974
Package Type:Ceramic
PGA-273
Goldcap
Socket: 4
top of page
Intel OverDrive DX2ODP66 (V4.0)
Intel OverDrive DX2ODP66 (V4.0) Top Side
DX2ODP66
C4500207
SZ933 V4.0
INTEL (M) (c) '89 '92
Intel OverDrive DX2ODP66 (V4.0) Back Side
94394054CC
A4
AG 49
This is an OverDrive processor for an additional OverDrive socket on the mainboard.
Upgrades 33 MHz Intel 486DX and SX based systems to 66 MHz.
 
Comment by Paul Collins (pi314aussie[at]yahoo.com):
Note the extra pin. It is a kind of "tell the other guy to shut down" pin. Implemented so that the end-user can just "add" this new chip into the spare upgrade socket, without any need of interfering with the originally supplied SX CPU. Ie. what end-user can remove a PLCC or even PQFP chip.
 
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Core Frequency:66 MHz
Board Frequency:33 MHz
Clock Multiplier:2.0
Data bus (ext.):32 Bit
Address bus:32 Bit
Voltage:5 V
Introduced:06/1993
Manufactured:week 50/1994
L1 Cache:8 KB
CPU Code:i486 ODP
P23T
Intel S-Spec: SZ933
Package Type:Ceramic
PGA-169
Cooler
Socket: 1/2/3
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Intel Pentium A80502-100 Goldcap
Intel Pentium A80502-100 Goldcap Top Side
A80502-100 SX962
ICOMP INDEX=810
L4502210-0299
INTEL (M) (c) '92 '93
Intel Pentium A80502-100 Goldcap Back Side
E4404894AA
MALAY 451 U
INTEL(M)(C) 92 93
A80502-100
SX962
A not-so common version of the Pentium 100 - with head spreader. This was AFAIK the last ceramic PGA Pentium to use a head spreader.
 
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Core Frequency:100 MHz
Board Frequency:66 MHz
Clock Multiplier:1.5
Data bus (ext.):64 Bit
Address bus:32 Bit
Transistors:3,200,000
Circuit Size:0.60
Voltage:3.3 V
Introduced:March 7, 1994
Manufactured:week 50/1994
Made in:Malaysia
L1 Cache:8+8 KB
CPU Code:Pentium
P54
Intel S-Spec: SX962
Package Type:Ceramic
PGA-296
Goldcap
Socket: 5/7
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