Intel Pentium III 450
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In reality the first Pentium III CPU's (starting from 450MHz) were just Pentium II's with SSE instructions added and an improvement of the L1 cache controller. In my opinion this would still be a Pentium II and starting from the Pentium III 'Coppermine' a real Pentium III. The Pentium III 'Katmai' 450 is slightly faster than the Pentium II 450 in the benchmarks but that difference isn't noticeable during normal work or gaming. Especially back then as SSE optimized applications were scarce.

Specifications
Core / Codename
Katmai
Clockfrequency
450MHz
Front Side Bus
100MHz
Multiplier
4,5x
vCore
2V
L1 cache
32KB
L2 cache
512KB Off-die halfspeed
sSpec
SL37C
Chip date
9941
Stepping
kC0
Socket
Slot 1
Transistor count
9,5M
Condition
CPU only
Engineering sample?
No

Benchmarks
CPU (chipset) CPU Free Bench score
Core 2 Quad Q6600 (iP35)
28.33
Pentium 4 571 (3.8 GHz) (i865PE)
34.34
Xeon 3.73 GHz (iP35)
34.80
Pentium 4 560 (3.6 GHz) (i865PE)
36.91
Pentium 4 650 (3.4 GHz) (i865PE)
38.34
Celeron D 355 (3.33 GHz) (i865PE)
39.08
Pentium 4 3C GHz (i865G)
39.27
Pentium 4 3.2E GHz (i865G)
40.44
Pentium 4 524 (3.06 GHz) (i865PE)
42.47
Pentium 4 530 (3 GHz) (i865PE)
43.43
Pentium D 830 (3 GHz) (i865PE)
43.43
Pentium 4 630 (3 GHz) (i865PE)
43.45
Pentium 4 3E GHz (i865G)
43.76
Pentium 4 2.66 GHz (i865G)
43.92
Pentium D 920 (2.8 GHz) (i865PE)
46.52
Pentium 4 520 (2.8 GHz) (i865PE)
47.09
Celeron D 330 (2.66 GHz) (i865G)
48.66
Celeron 2.4 GHz (i865G)
49.11
Celeron 2.2 GHz (i865G)
53.85
Athlon 64 FX 51 (AMD8111)
56.74
Athlon XP 2400+ (SiS745)
58.33
Celeron 2.0 GHz (i865G)
58.85
Athlon XP 2600+ (nForce2)
61.02
Athlon 64 3200+ (K8T800)
62.24
Athlon XP 2500+ (SiS745)
63.63
Athlon XP 2200+ (SiS745)
64.81
Duron 1800 (SiS745)
64.84
Pentium 4 1.8 GHz (i865G)
66.31
Athlon XP 2100+ (SiS745)
67.30
Opteron 844 (AMD8111)
69.30
Athlon XP 1900+ (SiS745)
72.92
Athlon XP 1800+ (SiS745)
76.08
Pentium III-S 1400 (SiS745)
77.08
Sempron 2200+ (nForce2)
77.80
Athlon XP 1700+ (SiS745)
78.66
Pentium 4 1.5 GHz (i865G)
79.57
Athlon 1400 (SiS745)
81.10
Pentium 4 1.4 GHz (i850)
83.31
Athlon 1333 (SiS745)
85.30
Pentium 4 1.3 GHz (i850)
89.75
Celeron 1200 (i815)
89.96
Athlon HX 1400 (AMD8111 A0)
90.21
Pentium III-S 1133 (i815)
95.25
Celeron 1100A (i815)
98.16
Mobile Athlon 4 1200 (SiS745)
98.22
Duron 1100 (SiS745)
107.15
Pentium III 1000 (SiS745)
109.09
Athlon 1000 (SiS745)
113.74
K6-2+ 550 (ALi Aladdin 5)
127.04
Celeron 850 (i815)
128.42
Athlon 850 (SiS745)
135.00
Pentium III 800EB (SiS745)
136.43
Mobile Duron 850 (SiS745)
138.63
K6-2 500AFX (ALi Aladdin 5)
140.55
Pentium 4 1.x GHz (i850)
146.13
Duron 750 (SiS745)
153.06
K6-2+ 450 (ALi Aladdin 5)
155.29
K6-2 450AHX (ALi Aladdin 5)
156.26
Duron 700 (SiS745)
164.01
C3 1.0A (VT8601T)
165.14
Celeron 667 (i815)
165.15
Celeron 633 (i815)
173.88
K6-III+ 400 (ALi Aladdin 5)
174.93
K6-2 400AFR (ALi Aladdin 5)
176.27
Duron 650 (SiS745)
176.61
Celeron 600 (i815)
183.54
Duron 600 (SiS745)
191.37
Celeron 566 (i815)
194.37
Pentium III 500 (i440BX)
219.02
Athlon 500 (Irongate)
228.79
Pentium II Xeon 450 (450NX)
242.81
Pentium II 450 (i440BX)
243.50
Pentium III 450 (i440BX)
243.50
Cyrix III 600 (i815)
245.52
Celeron 433 (i440BX)
252.86
K6 266AFR (ALi Aladdin 5)
264.79
Celeron 400 (i440BX)
273.97
Pentium II 400 (i440BX)
274.08
Celeron 366 (i440BX)
299.07
K6 233ANR (ALi Aladdin 5)
302.97
Pentium II 350 (i440BX)
313.40
Cyrix III 466 (i815)
317.06
Celeron 333 (i440BX)
329.13
MII 300GP (ALi Aladdin 5)
374.16
Pentium II 266 (i440BX)
412.05
Celeron 266 (i440BX)
413.42
K6 166ALR (ALi Aladdin 5)
427.21
6x86MX PR233 (ALi Aladdin 5)
477.69
6x86MX PR200 (ALi Aladdin 5)
493.63
Pentium MMX 233 (ALi Aladdin 5)
521.97
Winchip 2 233 (ALi Aladdin 5)
525.49
Pentium MMX 200 (ALi Aladdin 5)
610.07
Pentium 200 (ALi Aladdin 5)
612.93
Pentium MMX 166 (ALi Aladdin 5)
733.64
Pentium 166 (ALi Aladdin 5)
742.00
Winchip C6 200 (ALi Aladdin 5)
815.35
Pentium 133 (ALi Aladdin 5)
929.67
Pentium 100 (ALi Aladdin 5)
1248.33
CPU (chipset) CPUBench score
Duron 1100 (SiS745)
9.50
Athlon 1000 (SiS745)
9.40
Pentium 4 1.5 GHz (i865G)
8.60
Pentium 4 1.4 GHz (i850)
8.00
Athlon 850 (SiS745)
7.80
Mobile Duron 850 (SiS745)
7.60
Pentium 4 1.3 GHz (i850)
7.50
Celeron 850 (i815)
6.80
Duron 750 (SiS745)
6.70
Duron 700 (SiS745)
6.30
Duron 650 (SiS745)
5.90
Pentium III 667 (i815)
5.70
Duron 600 (SiS745)
5.50
Celeron 667 (i815)
5.30
K6-2+ 550 (ALi Aladdin 5)
5.10
Celeron 633 (i815)
5.00
Pentium 4 1.x GHz (i850)
5.00
Celeron 600 (i815)
4.80
Pentium III 500 (i440BX)
4.60
Celeron 566 (i815)
4.60
Athlon 500 (Irongate)
4.50
K6-2+ 450 (ALi Aladdin 5)
4.40
Pentium III 450 (i440BX)
4.20
K6-III+ 400 (ALi Aladdin 5)
4.10
K6-2 500AFX (ALi Aladdin 5)
4.10
Pentium II 450 (i440BX)
4.10
Pentium II Xeon 450 (450NX)
3.80
Pentium II 400 (i440BX)
3.70
K6-2 450AHX (ALi Aladdin 5)
3.70
Celeron 433 (i440BX)
3.60
C3 1.0A (VT8601T)
3.50
Celeron 400 (i440BX)
3.40
K6-2 400AFR (ALi Aladdin 5)
3.40
Pentium II 350 (i440BX)
3.20
Celeron 366 (i440BX)
3.20
Celeron 333 (i440BX)
2.90
Pentium II 266 (i440BX)
2.50
K6 266AFR (ALi Aladdin 5)
2.30
Celeron 266 (i440BX)
2.20
K6 233ANR (ALi Aladdin 5)
1.90
MII 300GP (ALi Aladdin 5)
1.60
K6 166ALR (ALi Aladdin 5)
1.50
Pentium MMX 233 (ALi Aladdin 5)
1.50
Cyrix III 600 (i815)
1.30
Pentium MMX 200 (ALi Aladdin 5)
1.30
6x86MX PR233 (ALi Aladdin 5)
1.30
Pentium 200 (ALi Aladdin 5)
1.30
Winchip 2 233 (ALi Aladdin 5)
1.20
6x86MX PR200 (ALi Aladdin 5)
1.20
Pentium MMX 166 (ALi Aladdin 5)
1.10
Pentium 166 (ALi Aladdin 5)
1.10
Cyrix III 466 (i815)
1.10
Winchip C6 200 (ALi Aladdin 5)
0.90
Pentium 133 (ALi Aladdin 5)
0.90
Pentium 100 (ALi Aladdin 5)
0.70
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
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
Athlon XP 2600+ (nForce2)
186.00
Pentium 4 3.2E GHz (i865G)
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 3E GHz (i865G)
174.00
Pentium 4 630 (3 GHz) (i865PE)
174.00
Athlon XP 2200+ (SiS745)
167.00
Pentium 4 520 (2.8 GHz) (i865PE)
163.00
Celeron D 355 (3.33 GHz) (i865PE)
163.00
Pentium D 920 (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 1.8 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
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
Pentium III 1000 (i815)
88.70
Pentium 4 1.4 GHz (i850)
87.40
Duron 1100 (SiS745)
83.90
Pentium 4 1.3 GHz (i850)
81.60
Athlon 850 (SiS745)
79.40
Pentium III 800EB (i815)
72.10
Mobile Duron 850 (SiS745)
69.90
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
Pentium II 266 (i440BX)
21.30
Celeron 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) FPUMark '99 score
Pentium III-S 1400 (SiS745)
7700.00
Athlon 1400 (SiS745)
7690.00
Athlon 1333 (SiS745)
7310.00
Celeron 1200 (i815)
6600.00
Mobile Athlon 4 1200 (SiS745)
6550.00
Pentium III-S 1133 (i815)
6230.00
Pentium 4 1.8 GHz (i865G)
6190.00
Celeron 1100A (i815)
6050.00
Duron 1100 (SiS745)
6000.00
Athlon 1000 (SiS745)
5480.00
Pentium III 1000 (SiS745)
5350.00
Pentium 4 1.5 GHz (i865G)
5160.00
Pentium 4 1.4 GHz (i850)
4690.00
Athlon 850 (SiS745)
4630.00
Mobile Duron 850 (SiS745)
4630.00
Celeron 850 (i815)
4540.00
Pentium 4 1.3 GHz (i850)
4360.00
Pentium III 800EB (SiS745)
4240.00
Duron 750 (SiS745)
4090.00
Duron 700 (SiS745)
3790.00
Duron 650 (SiS745)
3540.00
Celeron 667 (i815)
3530.00
Celeron 633 (i815)
3330.00
Duron 600 (SiS745)
3270.00
Celeron 600 (i815)
3170.00
Celeron 566 (i815)
2980.00
Athlon 500 (Irongate)
2730.00
Pentium 4 1.x GHz (i850)
2680.00
Pentium III 500 (i440BX)
2550.00
Pentium II Xeon 450 (450NX)
2340.00
Celeron 433 (i440BX)
2310.00
Pentium III 450 (i440BX)
2290.00
Pentium II 450 (i440BX)
2290.00
C3 1.0A (VT8601T)
2200.00
Celeron 400 (i440BX)
2130.00
Pentium II 400 (i440BX)
2050.00
Celeron 366 (i440BX)
1960.00
K6-2+ 550 (ALi Aladdin 5)
1820.00
Pentium II 350 (i440BX)
1800.00
Celeron 333 (i440BX)
1780.00
K6-2 500AFX (ALi Aladdin 5)
1570.00
K6-2+ 450 (ALi Aladdin 5)
1490.00
K6-2 450AHX (ALi Aladdin 5)
1420.00
Pentium II 266 (i440BX)
1370.00
K6-III+ 400 (ALi Aladdin 5)
1320.00
Celeron 266 (i440BX)
1270.00
K6-2 400AFR (ALi Aladdin 5)
1270.00
Cyrix III 600 (i815)
986.00
Pentium MMX 233 (ALi Aladdin 5)
833.00
K6 266AFR (ALi Aladdin 5)
832.00
Cyrix III 466 (i815)
767.00
Pentium 200 (ALi Aladdin 5)
723.00
Pentium MMX 200 (ALi Aladdin 5)
723.00
K6 233ANR (ALi Aladdin 5)
714.00
Winchip 2 233 (ALi Aladdin 5)
667.00
Pentium MMX 166 (ALi Aladdin 5)
614.00
Pentium 166 (ALi Aladdin 5)
576.00
K6 166ALR (ALi Aladdin 5)
519.00
MII 300GP (ALi Aladdin 5)
514.00
Pentium 133 (ALi Aladdin 5)
468.00
6x86MX PR233 (ALi Aladdin 5)
404.00
Pentium 100 (ALi Aladdin 5)
368.00
6x86MX PR200 (ALi Aladdin 5)
365.00
Winchip C6 200 (ALi Aladdin 5)
310.00
CPU (chipset) Quake 2 640x480 software (demo1) score
Core 2 Quad Q6600 (iP35)
160.10
Pentium 4 650 (3.4 GHz) (i865PE)
145.00
Xeon 3.73 GHz (iP35)
144.70
Pentium 4 560 (3.6 GHz) (i865PE)
142.60
Pentium 4 571 (3.8 GHz) (i865PE)
142.50
Pentium 4 3.2E GHz (i865G)
141.50
Pentium 4 3C GHz (i865G)
134.50
Pentium 4 3E GHz (i865G)
134.10
Pentium 4 630 (3 GHz) (i865PE)
131.80
Pentium D 830 (3 GHz) (i865PE)
128.10
Pentium 4 530 (3 GHz) (i865PE)
126.80
Pentium 4 524 (3.06 GHz) (i865PE)
125.70
Athlon 64 3200+ (K8T800)
124.40
Pentium D 920 (2.8 GHz) (i865PE)
124.30
Celeron D 355 (3.33 GHz) (i865PE)
123.90
Pentium 4 520 (2.8 GHz) (i865PE)
121.50
Celeron D 330 (2.66 GHz) (i865G)
112.80
Pentium 4 2.66 GHz (i865G)
110.80
Athlon XP 2600+ (nForce2)
110.50
Athlon XP 2500+ (SiS745)
108.30
Athlon XP 2400+ (SiS745)
102.40
Athlon HX 1400 (AMD8111 A0)
97.80
Athlon XP 2200+ (SiS745)
97.40
Athlon XP 2100+ (SiS745)
95.20
Sempron 2200+ (nForce2)
93.50
Celeron 2.4 GHz (i865G)
93.10
Athlon XP 1900+ (SiS745)
91.30
Duron 1800 (SiS745)
89.70
Athlon XP 1800+ (SiS745)
89.40
Celeron 2.2 GHz (i865G)
87.70
Athlon XP 1700+ (SiS745)
87.60
Celeron 2.0 GHz (i865G)
82.50
Pentium 4 1.8 GHz (i865G)
76.40
Athlon 1400 (SiS745)
72.40
Athlon 1333 (SiS745)
70.50
Pentium III-S 1400 (SiS745)
66.90
Pentium 4 1.5 GHz (i865G)
66.70
Mobile Athlon 4 1200 (SiS745)
61.30
Athlon 1000 (SiS745)
60.50
Pentium III-S 1133 (i815)
59.50
Duron 1100 (SiS745)
54.00
Celeron 1200 (i815)
52.20
Pentium III 1000 (SiS745)
50.40
Celeron 1100A (i815)
50.00
Athlon 850 (SiS745)
48.90
Mobile Duron 850 (SiS745)
47.50
Pentium III 800EB (SiS745)
43.30
Duron 750 (SiS745)
43.10
Duron 700 (SiS745)
41.50
Duron 650 (SiS745)
40.00
Pentium 4 1.4 GHz (i850)
38.80
Duron 600 (SiS745)
38.10
Pentium 4 1.3 GHz (i850)
36.40
Athlon 500 (Irongate)
35.50
Celeron 850 (i815)
35.40
Celeron 667 (i815)
32.00
Celeron 633 (i815)
30.80
Celeron 600 (i815)
30.10
C3 1.0A (VT8601T)
29.00
Pentium III 500 (i440BX)
28.80
Celeron 566 (i815)
28.70
Pentium III 450 (i440BX)
26.20
Pentium II 450 (i440BX)
25.80
Pentium II Xeon 450 (450NX)
25.40
Pentium II 400 (i440BX)
23.80
Celeron 433 (i440BX)
23.60
Celeron 400 (i440BX)
22.10
Pentium 4 1.x GHz (i850)
21.90
Pentium II 350 (i440BX)
21.20
Celeron 366 (i440BX)
20.80
K6-2+ 550 (ALi Aladdin 5)
20.50
Celeron 333 (i440BX)
19.40
K6-2+ 450 (ALi Aladdin 5)
18.70
K6-III+ 400 (ALi Aladdin 5)
18.20
K6-2 500AFX (ALi Aladdin 5)
16.00
Pentium II 266 (i440BX)
16.00
K6-2 450AHX (ALi Aladdin 5)
15.20
K6-2 400AFR (ALi Aladdin 5)
14.50
Cyrix III 600 (i815)
14.10
Celeron 266 (i440BX)
14.10
Cyrix III 466 (i815)
12.00
Pentium MMX 233 (ALi Aladdin 5)
10.60
MII 300GP (ALi Aladdin 5)
9.90
Pentium MMX 200 (ALi Aladdin 5)
9.80
Winchip 2 233 (ALi Aladdin 5)
9.80
K6 266AFR (ALi Aladdin 5)
9.50
Pentium MMX 166 (ALi Aladdin 5)
9.10
K6 233ANR (ALi Aladdin 5)
8.80
Pentium 200 (ALi Aladdin 5)
8.60
6x86MX PR233 (ALi Aladdin 5)
8.10
6x86MX PR200 (ALi Aladdin 5)
7.70
Pentium 166 (ALi Aladdin 5)
7.40
Pentium 133 (ALi Aladdin 5)
7.00
K6 166ALR (ALi Aladdin 5)
7.00
Winchip C6 200 (ALi Aladdin 5)
6.90
Pentium 100 (ALi Aladdin 5)
5.80