Intel Xeon 3.06 vs Intel Xeon 2.66

Comparative analysis of Intel Xeon 3.06 and Intel Xeon 2.66 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon 3.06

Intel Xeon 2.66

Differences

Reasons to consider the Intel Xeon 3.06

CPU is newer: launch date 7 month(s) later
Around 15% higher clock speed: 3.07 GHz vs 2.66 GHz
Around 13% better performance in PassMark - CPU mark: 491 vs 435

Specifications (specs)
Launch date	July 2003 vs November 2002
Maximum frequency	3.07 GHz vs 2.66 GHz
Benchmarks
PassMark - CPU mark	491 vs 435

Reasons to consider the Intel Xeon 2.66

2x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 9% lower typical power consumption: 89 Watt vs 97 Watt

L1 cache	16 KB vs 8 KB
Thermal Design Power (TDP)	89 Watt vs 97 Watt

Compare benchmarks

CPU 1: Intel Xeon 3.06
CPU 2: Intel Xeon 2.66

PassMark - CPU mark

CPU 1

CPU 2

491

435

Name	Intel Xeon 3.06	Intel Xeon 2.66
PassMark - Single thread mark	0	0
PassMark - CPU mark	491	435

Compare specifications (specs)

	Intel Xeon 3.06	Intel Xeon 2.66
Essentials
Architecture codename	Gallatin	Prestonia
Launch date	July 2003	November 2002
Place in performance rating	3250	3266
Vertical segment	Server	Server
Performance
Die size	237 mm	217 mm
L1 cache	8 KB	16 KB
L2 cache	512 KB	512 KB
L3 cache	2048 KB
Manufacturing process technology	130 nm	130 nm
Maximum frequency	3.07 GHz	2.66 GHz
Number of cores	1	1
Transistor count	286 million	55 million
Compatibility
Max number of CPUs in a configuration	2	2
Sockets supported	604	604
Thermal Design Power (TDP)	97 Watt	89 Watt