Intel Xeon X5260 vs Intel Pentium III 1266S

Comparative analysis of Intel Xeon X5260 and Intel Pentium III 1266S processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon X5260

Intel Pentium III 1266S

Differences

Reasons to consider the Intel Xeon X5260

1 more cores, run more applications at once: 2 vs 1
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 130 nm
16x more L1 cache, more data can be stored in the L1 cache for quick access later
12x more L2 cache, more data can be stored in the L2 cache for quick access later

Number of cores	2 vs 1
Manufacturing process technology	45 nm vs 130 nm
L1 cache	128 KB vs 8 KB
L2 cache	6 MB vs 512 KB

Reasons to consider the Intel Pentium III 1266S

Around 5% higher maximum core temperature: 69°C vs 66°C
2.7x lower typical power consumption: 30.4 Watt vs 80 Watt

Maximum core temperature	69°C vs 66°C
Thermal Design Power (TDP)	30.4 Watt vs 80 Watt

Compare benchmarks

CPU 1: Intel Xeon X5260
CPU 2: Intel Pentium III 1266S

Name	Intel Xeon X5260	Intel Pentium III 1266S
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.436
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	31.038
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.121
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.907
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.139
PassMark - Single thread mark		0
PassMark - CPU mark		309

Compare specifications (specs)

	Intel Xeon X5260	Intel Pentium III 1266S
Essentials
Architecture codename	Wolfdale	Tualatin
Launch date	11 Nov 2007	Q4'01
Launch price (MSRP)	$851
Place in performance rating	3207	3272
Processor Number	X5260
Series	Legacy Intel Xeon Processors	Legacy Intel® Pentium® Processor
Status	Launched	Discontinued
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.33 GHz	1.26 GHz
Bus Speed	1333 MHz	133 MHz FSB
Die size	107 mm2	80 mm
L1 cache	128 KB	8 KB
L2 cache	6 MB	512 KB
Manufacturing process technology	45 nm	130 nm
Maximum core temperature	66°C	69°C
Number of cores	2	1
Number of threads	2
Transistor count	410 million	44 million
VID voltage range	0.8500V-1.3500V	1.5V
Maximum case temperature (TCase)		69 °C
Maximum frequency		1.27 GHz
Compatibility
Package Size	37.5mm x 37.5mm
Sockets supported	LGA771	PPGA370
Thermal Design Power (TDP)	80 Watt	30.4 Watt
Low Halogen Options Available
Max number of CPUs in a configuration		1
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)