programm CPUinfo detects following 121 processor types
plus their codename, technology process, platform,
instruction sets, internal clock and cache system.
On some types detects processor signature and features,
original clock, multiplier and bus clock.

Intel i386SL
Intel i386DX
Intel i386SX (P9)
Intel RapidCAD
Intel i486SL
Intel i486DX (P4)
Intel i486DX-S (P4S)
Intel i486SX (P23)
Intel i486SX-S (P23S)
Intel i486DX2 (P24 and P24D)
Intel i486DX2-S (P24S)
Intel i486SX2
Intel i486DX4 (P24C)
Intel i486DX4 OverDrive (P4T, for DX)
Intel Pentium OverDrive (P24T, for 486)
Intel Pentium (P5)
Intel Pentium (P54C)
Intel Pentium (P54CS)
Intel Pentium (P54VRT, mobile)
Intel Pentium MMX (P55C)
Intel Pentium MMX (Tillamook, mobile)
Intel Pentium OverDrive (P5T)
Intel Pentium OverDrive (P54CT)
Intel Pentium MMX OverDrive (P54CTB)
Intel Pentium Pro (P6)
Intel Pentium II OverDrive (P6T)
Intel Celeron (Covington)
Intel Celeron (Mendocino)
Intel Celeron (Mendocino, mobile)
Intel Celeron (Coppermine-128)
Intel Celeron (Coppermine-128, mobile)
Intel Pentium II (Klamath)
Intel Pentium II (Deschutes)
Intel Pentium II (Tonga, mobile)
Intel Pentium II PE (Dixon, mobile)
Intel Pentium II Xeon (Drake)
Intel Pentium III (Katmai)
Intel Pentium III (Coppermine)
Intel Pentium III (Coppermine, mobile)
Intel Pentium III Xeon (Tanner)
Intel Pentium III Xeon (Cascades)
Intel Pentium 4 (Willamette)
Intel Itanium (Merced)

AMD Am386DX
AMD Am386SX
AMD Am486DX4
AMD Enhanced Am486DX2
AMD Enhanced Am486DX4
AMD Elan SC400 Microcontroller
AMD Am5x86 (X5)
AMD K5 (SSA5)
AMD K5 (5k86)
AMD K6
AMD K6 (Little Foot)
AMD K6-2 (Chomper)
AMD K6-2 (Chomper XT)
AMD K6-III (Sharptooth)
AMD K6-2+
AMD K6-III+
AMD Athlon (K7)
AMD Athlon (K75)
AMD Duron (Spitfire)
AMD Athlon (Thunderbird)
AMD K8 (Claw- / Sledgehammer)

Cyrix Cx486SLC
Cyrix Cx486DLC
Cyrix Cx486SLC2
Cyrix Cx486DLC2
Cyrix Cx486SRx
Cyrix Cx486DRx
Cyrix Cx486SRx2
Cyrix Cx486DRx2
Cyrix Cx486SRu
Cyrix Cx486DRu
Cyrix Cx486SRu2
Cyrix Cx486DRu2
Cyrix Cx486S (M5)
Cyrix Cx486S2
Cyrix Cx486Se
Cyrix Cx486S2e
Cyrix Cx486DX (M6)
Cyrix Cx486DX2 (M7)
Cyrix Cx486DX4 (M9)
Cyrix 5x86 (M1sc)
Cyrix 6x86 (M1)
Cyrix 6x86L (M1L)
Cyrix MediaGX (GX)
Cyrix GXm
Cyrix 6x86MX (M2)
Cyrix MII (M2)
VIA Cyrix III (Joshua)

IDT WinChip (C6)
IDT Winchip 2 (W2)
IDT Winchip 2 (W2A)
IDT Winchip 2 (W2B)
IDT Winchip 3 (W3)
IDT Winchip 4 (C4)
VIA Cyrix III (Samuel - C5A)
VIA C3 (Samuel 2 - C5B)

Transmeta Crusoe (TM3200)
Transmeta Crusoe (TM5400)
Transmeta Crusoe (TM5600)
Transmeta Crusoe (TM5800)

National Semiconductor Geode GXm
National Semiconductor Geode GXLV
National Semiconductor Geode GX1

Rise iDragon (mP6)
Rise iDragon II (mP6-II)

NexGen Nx586
NexGen Nx686 (HA)

UMC U5D
UMC U5S
UMC U486DX2
UMC U486SX2

Texas Instruments Ti486SXL (Potomac)
Texas Instruments Ti486DX
Texas Instruments Ti486DX2
Texas Instruments Ti486DX4

IBM 486SLC2
IBM 486DLC2
IBM 486BL3 (Blue Lightning)

and following 11 external coprocessor types:

Intel 80287
Intel 80387
IIT 2C87
IIT 3C87
IIT 4C87
ULSI 83x87
ULSI 84x87
Cyrix 82x87
Cyrix 83x87
Cyrix 84x87
Cyrix EMC87