AMD Opteron 142 vs Intel Xeon 2.66

Comparative analysis of AMD Opteron 142 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.

AMD Opteron 142

Intel Xeon 2.66

Differences

Reasons to consider the AMD Opteron 142

CPU is newer: launch date 7 month(s) later
8x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 5% lower typical power consumption: 85 Watt vs 89 Watt

Launch date	June 2003 vs November 2002
L1 cache	128 KB vs 16 KB
L2 cache	1024 KB vs 512 KB
Thermal Design Power (TDP)	85 Watt vs 89 Watt

Reasons to consider the Intel Xeon 2.66

Around 66% higher clock speed: 2.66 GHz vs 1.6 GHz
Around 2% better performance in PassMark - CPU mark: 435 vs 428

Specifications (specs)
Maximum frequency	2.66 GHz vs 1.6 GHz
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	435 vs 428

Compare benchmarks

CPU 1: AMD Opteron 142
CPU 2: Intel Xeon 2.66

PassMark - CPU mark

CPU 1

CPU 2

428

435

Name	AMD Opteron 142	Intel Xeon 2.66
PassMark - Single thread mark	0	0
PassMark - CPU mark	428	435

Compare specifications (specs)

	AMD Opteron 142	Intel Xeon 2.66
Essentials
Architecture codename	SledgeHammer	Prestonia
Launch date	June 2003	November 2002
Place in performance rating	3345	3349
Vertical segment	Server	Server
Performance
64 bit support
Die size	193 mm	217 mm
L1 cache	128 KB	16 KB
L2 cache	1024 KB	512 KB
Manufacturing process technology	130 nm	130 nm
Maximum frequency	1.6 GHz	2.66 GHz
Number of cores	1	1
Transistor count	106 million	55 million
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	940	604
Thermal Design Power (TDP)	85 Watt	89 Watt