Intel Pentium III 1400 vs AMD Athlon XP 1900+

Comparative analysis of Intel Pentium III 1400 and AMD Athlon XP 1900+ processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Pentium III 1400

AMD Athlon XP 1900+

Differences

Reasons to consider the Intel Pentium III 1400

CPU is newer: launch date 10 month(s) later
Around 71% lower typical power consumption: 31.2 Watt vs 53 Watt

Launch date	December 2001 vs January 2001
Thermal Design Power (TDP)	31.2 Watt vs 53 Watt

Reasons to consider the AMD Athlon XP 1900+

Around 14% higher clock speed: 1.6 GHz vs 1.4 GHz
16x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 15% better performance in PassMark - Single thread mark: 312 vs 272
Around 5% better performance in PassMark - CPU mark: 203 vs 193

Specifications (specs)
Maximum frequency	1.6 GHz vs 1.4 GHz
L1 cache	128 KB vs 8 KB
Benchmarks
PassMark - Single thread mark	312 vs 272
PassMark - CPU mark	203 vs 193

Compare benchmarks

CPU 1: Intel Pentium III 1400
CPU 2: AMD Athlon XP 1900+

PassMark - Single thread mark

CPU 1

CPU 2

272

312

PassMark - CPU mark

CPU 1

CPU 2

193

203

Name	Intel Pentium III 1400	AMD Athlon XP 1900+
PassMark - Single thread mark	272	312
PassMark - CPU mark	193	203

Compare specifications (specs)

	Intel Pentium III 1400	AMD Athlon XP 1900+
Essentials
Architecture codename	Tualatin	Thoroughbred
Launch date	December 2001	January 2001
Place in performance rating	3256	3233
Series	Legacy Intel® Pentium® Processor
Status	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	1.40 GHz
Bus Speed	133 MHz FSB
Die size	80 mm2	80 mm
L1 cache	8 KB	128 KB
L2 cache	256 KB	256 KB
Manufacturing process technology	130 nm	130 nm
Maximum case temperature (TCase)	69 °C
Maximum core temperature	69°C
Maximum frequency	1.4 GHz	1.6 GHz
Number of cores	1	1
Transistor count	44 million	37 million
VID voltage range	1.5V
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Sockets supported	PPGA370	A
Thermal Design Power (TDP)	31.2 Watt	53 Watt
Advanced Technologies
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)