The first desktop CPU's using AMD's 'Quantispeed' architecture. Otherwise said: we are dealing with a 'Palomino' core.

AMD claims the AMD Athlon XP is faster per MHz comparing with the regular AMD Athlon 'Thunderbird'. The AMD Athlon XP at 1400MHz has model number 1600+ and should be as fast as an AMD Athlon 'Thunderbird' at 1600MHz. Unfortunatly I don't have an 1400MHz Athlon to compare but by looking at the 1000MHz Athlon I can say the Athlon XP is faster per MHz. Some benchmarks are quite a lot faster but the fact that the Athlon 'Thunderbird' doesn't have SSE plays a role, too. Besides being faster the AMD Athlon XP runs cooler as well. A 1733MHz AMD Athlon XP 2100+ will consume almost exact as much energy as the 1400MHz AMD Athlon 'Thunderbird'.

The CPU on the picture shows some discoloration. The previous owner probably ran it in a hot environment or didn't use much cooling. Luckily the AMD Athlon XP is known to run very well in hot conditions so I'm sure the CPU didn't suffer a lot .

CPU (chipset)	Cinebench 2003 (Multi CPU rendering)	score
Core 2 Quad Q6600 (iP35)		19.50
Opteron 2218 (nV3600)		39.09
Pentium D 830 (3 GHz) (i865PE)		48.20
Pentium D 920 (2.8 GHz) (i865PE)		56.80
Pentium 4 Extreme Ed. 3.46GHz (PT880)		63.60
Pentium 4 571 (3.8 GHz) (i865PE)		65.50
Xeon 3.73 GHz (iP35)		66.99
Pentium 4 560 (3.6 GHz) (i865PE)		69.70
Pentium 4 650 (3.4 GHz) (i865PE)		73.20
Pentium 4 3C GHz (i865G)		73.70
Pentium 4 3.2E GHz (i865G)		78.20
Pentium 4 530 (3 GHz) (i865PE)		82.80
Pentium 4 630 (3 GHz) (i865PE)		82.90
Pentium 4 3E GHz (i865G)		83.80
Athlon 64 FX 51 (AMD8111)		86.20
Pentium 4 520 (2.8 GHz) (i865PE)		89.90
Athlon 64 3200+ (K8T800)		93.70
Pentium 4 2.66 GHz (i865G)		98.30
Pentium 4 524 (3.06 GHz) (i865PE)		98.40
Celeron D 355 (3.33 GHz) (i865PE)		102.20
Pentium 4 2.53 GHz (i865G)		104.00
Athlon XP 2400+ (SiS745)		104.40
Opteron 844 (AMD8111)		104.70
Athlon XP 2600+ (nForce2)		108.30
Pentium 4 2.4B GHz (i865G)		108.60
Pentium 4 2.4B GHz (i845G)		110.20
Athlon XP 2500+ (SiS745)		112.90
Athlon XP 2200+ (SiS745)		115.50
Celeron D 335 (2.8 GHz) (i865G)		117.20
Duron 1800 (SiS745)		118.00
Athlon XP 2100+ (SiS745)		120.20
Celeron D 330 (2.66 GHz) (i865G)		125.20
Athlon XP 1900+ (SiS745)		130.00
Pentium 4 2.0A GHz (i865G)		131.60
Pentium 4 2.0A GHz (i845G)		132.40
Athlon HX 1400 (AMD8111 A0)		135.00
Athlon XP 1800+ (SiS745)		135.80
Sempron 2200+ (nForce2)		138.00
Athlon XP 1700+ (SiS745)		141.80
Celeron 2.7 GHz (i865G)		144.50
Pentium 4 1.8A GHz (i865G)		146.80
Athlon XP 1600+ (SiS745)		149.70
Athlon 1400 (SiS745)		150.40
Pentium 4 1.8 GHz (i865G)		152.70
Celeron 2.4 GHz (i865G)		156.00
Athlon 1333 (SiS745)		157.90
Pentium 4 1.7 GHz (i865G)		160.10
Pentium III-S 1400 (i815)		160.90
Pentium 4 1.7 GHz (i845G)		161.90
Celeron 2.2 GHz (i865G)		165.60
Pentium 4 1.6GHz (i865G)		170.60
Pentium 4 1.5A GHz (i865G)		175.50
Pentium 4 1.5A GHz (i845G)		176.40
Celeron 2.0 GHz (i865G)		176.70
Mobile Athlon 4 1200 (SiS745)		176.80
Pentium 4 1.5 GHz (i865G)		181.60
Celeron 1.8 GHz (i865G)		184.40
Pentium 4 1.5 GHz (i850)		185.00
Celeron 1.7 GHz (i865G)		194.40
Celeron 1200 (i815)		194.50
Pentium 4 1.4 GHz (i850)		194.90
Duron 1100 (SiS745)		197.10
Pentium III-S 1133 (i815)		197.70
Pentium 4 1.3 GHz (i850)		209.00
Celeron 1100A (i815)		209.40
Athlon 1000 (SiS745)		210.50
Pentium III 1000 (i815)		234.30
Pentium III 933 (i815)		248.40
Athlon 850 (SiS745)		252.00
Mobile Duron 850 (SiS745)		252.60
Pentium III 900 (i815)		259.30
Pentium III 866 (i815)		267.00
Pentium III 850 (i815)		274.00
Duron 750 (SiS745)		291.10
Pentium III 800EB (i815)		295.80
Duron 700 (SiS745)		307.60
Celeron 900 (i815)		319.30
Pentium III 733 (i815)		322.20
Duron 650 (SiS745)		331.20
Celeron 850 (i815)		340.30
Pentium 4 1.x GHz (i850)		347.50
Pentium III 667 (i815)		353.70
Duron 600 (SiS745)		357.40
Celeron 667 (i815)		436.00
Celeron 633 (i815)		461.80
Celeron 600 (i815)		467.00
Celeron 566 (i815)		499.80

CPU (chipset)	CPUMark '99	score
Core 2 Quad Q6600 (iP35)		339.00
Opteron 2218 (nV3600)		335.00
Athlon 64 FX 51 (AMD8111)		280.00
Athlon 64 3200+ (K8T800)		254.00
Pentium 4 Extreme Ed. 3.46GHz (PT880)		246.00
Opteron 844 (AMD8111)		230.00
Pentium 4 571 (3.8 GHz) (i865PE)		223.00
Xeon 3.73 GHz (iP35)		217.00
Pentium 4 560 (3.6 GHz) (i865PE)		209.00
Pentium 4 3C GHz (i865G)		200.00
Pentium 4 650 (3.4 GHz) (i865PE)		195.00
Pentium 4 3.2E GHz (i865G)		186.00
Athlon XP 2600+ (nForce2)		186.00
Athlon XP 2400+ (SiS745)		182.00
Athlon XP 2500+ (SiS745)		180.00
Pentium 4 524 (3.06 GHz) (i865PE)		179.00
Pentium 4 530 (3 GHz) (i865PE)		176.00
Pentium D 830 (3 GHz) (i865PE)		176.00
Pentium 4 2.66 GHz (i865G)		175.00
Athlon HX 1400 (AMD8111 A0)		175.00
Pentium 4 630 (3 GHz) (i865PE)		174.00
Pentium 4 3E GHz (i865G)		174.00
Pentium 4 2.53 GHz (i865G)		168.00
Athlon XP 2200+ (SiS745)		167.00
Pentium D 920 (2.8 GHz) (i865PE)		163.00
Celeron D 355 (3.33 GHz) (i865PE)		163.00
Pentium 4 520 (2.8 GHz) (i865PE)		163.00
Athlon XP 2100+ (SiS745)		161.00
Pentium 4 2.4B GHz (i865G)		161.00
Pentium 4 2.4B GHz (i845G)		152.00
Athlon XP 1900+ (SiS745)		151.00
Sempron 2200+ (nForce2)		147.00
Athlon XP 1800+ (SiS745)		146.00
Duron 1800 (SiS745)		143.00
Celeron D 335 (2.8 GHz) (i865G)		141.00
Athlon XP 1700+ (SiS745)		140.00
Celeron D 330 (2.66 GHz) (i865G)		137.00
Athlon XP 1600+ (SiS745)		128.00
Pentium 4 2.0A GHz (i865G)		127.00
Athlon 1400 (SiS745)		127.00
Pentium III-S 1400 (i815)		125.00
Athlon 1333 (SiS745)		123.00
Pentium 4 2.0A GHz (i845G)		122.00
Pentium 4 1.8A GHz (i865G)		116.00
Celeron 2.7 GHz (i865G)		114.00
Pentium 4 1.8 GHz (i865G)		113.00
Celeron 2.4 GHz (i865G)		107.00
Pentium 4 1.7 GHz (i865G)		107.00
Mobile Athlon 4 1200 (SiS745)		106.00
Pentium III-S 1133 (i815)		105.00
Pentium 4 1.7 GHz (i845G)		102.00
Pentium 4 1.6GHz (i865G)		101.00
Celeron 2.2 GHz (i865G)		99.40
Celeron 1200 (i815)		98.50
Pentium 4 1.5A GHz (i865G)		97.10
Athlon 1000 (SiS745)		96.10
Celeron 2.0 GHz (i865G)		95.60
Pentium 4 1.5A GHz (i845G)		94.80
Pentium 4 1.5 GHz (i865G)		94.50
Pentium 4 1.5 GHz (i850)		92.60
Celeron 1100A (i815)		92.30
Celeron 1.8 GHz (i865G)		91.30
Pentium III 1000 (i815)		88.70
Celeron 1.7 GHz (i865G)		87.70
Pentium 4 1.4 GHz (i850)		87.40
Pentium III 933 (i815)		84.50
Duron 1100 (SiS745)		83.90
Pentium 4 1.3 GHz (i850)		81.60
Pentium III 866 (i815)		79.50
Athlon 850 (SiS745)		79.40
Pentium III 900 (i815)		78.80
Pentium III 850 (i815)		75.30
Pentium III 800EB (i815)		72.10
Mobile Duron 850 (SiS745)		69.90
Pentium III 733 (i815)		66.80
Celeron 900 (i815)		64.60
Duron 750 (SiS745)		64.50
Celeron 850 (i815)		62.30
Duron 700 (SiS745)		62.20
Pentium III 667 (i815)		61.30
C3 1.0A (VT8601T)		59.00
Duron 650 (SiS745)		58.60
Duron 600 (SiS745)		54.10
Pentium 4 1.x GHz (i850)		51.60
Celeron 667 (i815)		48.30
Athlon 500 (Irongate)		48.10
Celeron 633 (i815)		45.80
Celeron 600 (i815)		45.00
Celeron 566 (i815)		42.50
K6-III+ 400 (ALi Aladdin 5)		40.00
K6-2+ 450 (ALi Aladdin 5)		39.70
Pentium III 500 (i440BX)		38.40
Pentium II Xeon 450 (450NX)		37.80
Pentium III 450 (i440BX)		34.70
Pentium II 450 (i440BX)		34.10
Celeron 433 (i440BX)		33.60
Pentium II 400 (i440BX)		31.70
Celeron 400 (i440BX)		31.20
K6-2+ 550 (ALi Aladdin 5)		30.20
Celeron 366 (i440BX)		29.00
Pentium II 350 (i440BX)		27.90
Celeron 333 (i440BX)		26.90
Cyrix III 600 (i815)		23.00
Cyrix III 466 (i815)		22.30
Celeron 266 (i440BX)		21.30
Pentium II 266 (i440BX)		21.30
K6-2 500AFX (ALi Aladdin 5)		18.60
K6-2 450AHX (ALi Aladdin 5)		18.00
K6-2 400AFR (ALi Aladdin 5)		17.80
MII 300GP (ALi Aladdin 5)		14.80
Winchip 2 233 (ALi Aladdin 5)		13.40
6x86MX PR233 (ALi Aladdin 5)		13.10
K6 266AFR (ALi Aladdin 5)		12.60
6x86MX PR200 (ALi Aladdin 5)		12.40
K6 233ANR (ALi Aladdin 5)		12.00
K6 166ALR (ALi Aladdin 5)		11.40
Winchip C6 200 (ALi Aladdin 5)		10.50
Pentium MMX 233 (ALi Aladdin 5)		9.43
Pentium MMX 200 (ALi Aladdin 5)		9.04
6x86 P200+ (ALi Aladdin 5)		8.93
Pentium MMX 166 (ALi Aladdin 5)		8.44
Pentium 200 (ALi Aladdin 5)		8.12
Pentium 166 (ALi Aladdin 5)		7.60
Pentium 133 (ALi Aladdin 5)		6.97
Pentium 100 (ALi Aladdin 5)		5.96

CPU (chipset)	Hexus PiFast!	score
Core 2 Quad Q6600 (iP35)		39.31
Opteron 2218 (nV3600)		49.47
Pentium 4 Extreme Ed. 3.46GHz (PT880)		57.56
Xeon 3.73 GHz (iP35)		58.61
Pentium 4 571 (3.8 GHz) (i865PE)		61.73
Athlon 64 3200+ (K8T800)		62.41
Pentium 4 560 (3.6 GHz) (i865PE)		64.50
Athlon 64 FX 51 (AMD8111)		64.77
Pentium 4 650 (3.4 GHz) (i865PE)		66.27
Pentium 4 3C GHz (i865G)		68.80
Pentium 4 3.2E GHz (i865G)		70.86
Celeron D 355 (3.33 GHz) (i865PE)		73.23
Athlon XP 2600+ (nForce2)		73.97
Pentium 4 630 (3 GHz) (i865PE)		74.02
Pentium D 830 (3 GHz) (i865PE)		74.20
Opteron 844 (AMD8111)		74.69
Pentium 4 3E GHz (i865G)		75.03
Pentium 4 524 (3.06 GHz) (i865PE)		75.05
Athlon XP 2500+ (SiS745)		75.72
Pentium 4 530 (3 GHz) (i865PE)		75.83
Pentium D 920 (2.8 GHz) (i865PE)		77.28
Athlon XP 2400+ (SiS745)		79.37
Pentium 4 520 (2.8 GHz) (i865PE)		80.17
Celeron D 335 (2.8 GHz) (i865G)		83.47
Pentium 4 2.53 GHz (i865G)		83.91
Athlon XP 2200+ (SiS745)		84.25
Pentium 4 2.66 GHz (i865G)		85.20
Athlon XP 2100+ (SiS745)		85.89
Celeron 2.7 GHz (i865G)		85.98
Celeron D 330 (2.66 GHz) (i865G)		86.86
Pentium 4 2.4B GHz (i865G)		87.81
Sempron 2200+ (nForce2)		90.53
Athlon XP 1900+ (SiS745)		91.36
Athlon HX 1400 (AMD8111 A0)		91.42
Celeron 2.4 GHz (i865G)		92.67
Duron 1800 (SiS745)		92.94
Athlon XP 1800+ (SiS745)		93.89
Athlon XP 1700+ (SiS745)		96.58
Celeron 2.2 GHz (i865G)		98.97
Pentium 4 2.0A GHz (i865G)		103.61
Pentium 4 2.4B GHz (i845G)		106.50
Celeron 2.0 GHz (i865G)		110.23
Pentium 4 1.8A GHz (i865G)		113.39
Athlon XP 1600+ (SiS745)		114.14
Pentium 4 1.8 GHz (i865G)		115.11
Pentium 4 2.0A GHz (i845G)		118.36
Celeron 1.8 GHz (i865G)		119.52
Pentium 4 1.7 GHz (i865G)		121.31
Athlon 1400 (SiS745)		121.99
Celeron 1.7 GHz (i865G)		125.61
Athlon 1333 (SiS745)		125.70
Pentium 4 1.6GHz (i865G)		127.67
Pentium 4 1.5A GHz (i865G)		133.86
Pentium 4 1.5 GHz (i865G)		135.14
Pentium III-S 1400 (i815)		137.44
Pentium 4 1.5 GHz (i850)		138.56
Pentium 4 1.7 GHz (i845G)		138.64
Mobile Athlon 4 1200 (SiS745)		140.77
Pentium 4 1.5A GHz (i845G)		146.45
Pentium 4 1.4 GHz (i850)		147.07
Pentium III-S 1133 (i815)		153.68
Athlon 1000 (SiS745)		156.00
Pentium 4 1.3 GHz (i850)		157.03
Duron 1100 (SiS745)		166.63
Celeron 1200 (i815)		178.25
Celeron 1100A (i815)		187.15
Mobile Duron 850 (SiS745)		194.28
Athlon 850 (SiS745)		194.28
Pentium III 1000 (i815)		194.43
Pentium III 933 (i815)		200.59
Pentium III 866 (i815)		209.74
Pentium III 900 (i815)		220.10
Pentium III 800EB (i815)		224.79
Pentium III 850 (i815)		226.37
Duron 750 (SiS745)		232.05
Duron 700 (SiS745)		236.78
Pentium III 733 (i815)		238.48
Pentium 4 1.x GHz (i850)		246.40
Duron 650 (SiS745)		247.75
Celeron 900 (i815)		250.25
Pentium III 667 (i815)		255.23
Celeron 850 (i815)		255.27
Duron 600 (SiS745)		261.61
Celeron 667 (i815)		321.77
Celeron 633 (i815)		337.22
Celeron 600 (i815)		340.09
Celeron 566 (i815)		357.57

CPU (chipset)	Lame 3.98.2 MP3 encoding (6:15 WAV)	score
Core 2 Quad Q6600 (iP35)		16.00
Pentium 4 Extreme Ed. 3.46GHz (PT880)		18.00
Pentium 4 571 (3.8 GHz) (i865PE)		19.00
Opteron 2218 (nV3600)		19.00
Pentium 4 560 (3.6 GHz) (i865PE)		20.00
Xeon 3.73 GHz (iP35)		20.00
Pentium 4 3C GHz (i865G)		21.00
Pentium 4 650 (3.4 GHz) (i865PE)		22.00
Celeron D 355 (3.33 GHz) (i865PE)		23.00
Athlon 64 FX 51 (AMD8111)		23.00
Pentium 4 3.2E GHz (i865G)		23.00
Pentium D 830 (3 GHz) (i865PE)		24.00
Pentium 4 524 (3.06 GHz) (i865PE)		24.00
Pentium 4 2.66 GHz (i865G)		24.00
Pentium 4 3E GHz (i865G)		25.00
Pentium 4 530 (3 GHz) (i865PE)		25.00
Athlon 64 3200+ (K8T800)		25.00
Pentium 4 630 (3 GHz) (i865PE)		25.00
Pentium 4 2.53 GHz (i865G)		26.00
Pentium D 920 (2.8 GHz) (i865PE)		26.00
Pentium 4 520 (2.8 GHz) (i865PE)		26.00
Pentium 4 2.4B GHz (i865G)		27.00
Pentium 4 2.4B GHz (i845G)		27.00
Celeron D 335 (2.8 GHz) (i865G)		27.00
Athlon XP 2400+ (SiS745)		27.00
Celeron 2.7 GHz (i865G)		27.00
Opteron 844 (AMD8111)		28.00
Athlon XP 2600+ (nForce2)		28.00
Athlon XP 2500+ (SiS745)		29.00
Celeron D 330 (2.66 GHz) (i865G)		29.00
Celeron 2.4 GHz (i865G)		30.00
Athlon XP 2200+ (SiS745)		30.00
Athlon XP 2100+ (SiS745)		31.00
Celeron 2.2 GHz (i865G)		32.00
Duron 1800 (SiS745)		32.00
Pentium 4 2.0A GHz (i845G)		33.00
Pentium 4 2.0A GHz (i865G)		33.00
Athlon XP 1900+ (SiS745)		33.00
Athlon XP 1800+ (SiS745)		35.00
Athlon HX 1400 (AMD8111 A0)		36.00
Pentium III-S 1400 (i815)		36.00
Athlon XP 1700+ (SiS745)		36.00
Sempron 2200+ (nForce2)		36.00
Celeron 2.0 GHz (i865G)		36.00
Pentium 4 1.8A GHz (i865G)		36.00
Pentium 4 1.8 GHz (i865G)		37.00
Celeron 1.8 GHz (i865G)		38.00
Athlon 1400 (SiS745)		39.00
Athlon XP 1600+ (SiS745)		39.00
Pentium 4 1.7 GHz (i865G)		40.00
Celeron 1.7 GHz (i865G)		41.00
Athlon 1333 (SiS745)		41.00
Pentium 4 1.7 GHz (i845G)		41.00
Pentium 4 1.6GHz (i865G)		42.00
Pentium 4 1.5A GHz (i865G)		43.00
Pentium III-S 1133 (i815)		44.00
Pentium 4 1.5A GHz (i845G)		44.00
Mobile Athlon 4 1200 (SiS745)		45.00
Pentium 4 1.5 GHz (i850)		45.00
Celeron 1200 (i815)		45.00
Pentium 4 1.5 GHz (i865G)		45.00
Pentium 4 1.4 GHz (i850)		48.00
Celeron 1100A (i815)		49.00
Pentium 4 1.3 GHz (i850)		52.00
Pentium III 1000 (i815)		54.00
Duron 1100 (SiS745)		54.00
Athlon 1000 (SiS745)		55.00
Pentium III 933 (i815)		57.00
Pentium III 900 (i815)		59.00
Pentium III 866 (i815)		61.00
Pentium III 850 (i815)		63.00
Athlon 850 (SiS745)		66.00
Mobile Duron 850 (SiS745)		67.00
Pentium III 800EB (i815)		67.00
Celeron 900 (i815)		67.00
Celeron 850 (i815)		70.00
Pentium III 733 (i815)		73.00
Pentium III 667 (i815)		80.00
Duron 750 (SiS745)		81.00
Pentium 4 1.x GHz (i850)		84.00
Duron 700 (SiS745)		85.00
Celeron 667 (i815)		90.00
Duron 650 (SiS745)		91.00
Celeron 633 (i815)		95.00
Duron 600 (SiS745)		98.00
Celeron 600 (i815)		98.00
Celeron 566 (i815)		105.00