Intel Pentium 4 HT 571 vs AMD Opteron X2 265

Comparative analysis of Intel Pentium 4 HT 571 and AMD Opteron X2 265 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization.

Intel Pentium 4 HT 571

AMD Opteron X2 265

Differences

Reasons to consider the Intel Pentium 4 HT 571

CPU is newer: launch date 1 month(s) later
Around 111% higher clock speed: 3.8 GHz vs 1.8 GHz

Launch date	June 2005 vs May 2005
Maximum frequency	3.8 GHz vs 1.8 GHz

Reasons to consider the AMD Opteron X2 265

1 more cores, run more applications at once: 2 vs 1
8x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 21% lower typical power consumption: 95 Watt vs 115 Watt

Number of cores	2 vs 1
L1 cache	128 KB vs 16 KB
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	95 Watt vs 115 Watt

Compare specifications (specs)

	Intel Pentium 4 HT 571	AMD Opteron X2 265
Essentials
Architecture codename	Prescott	Italy
Launch date	June 2005	May 2005
Place in performance rating	not rated	not rated
Processor Number	571
Series	Legacy Intel® Pentium® Processor
Status	Discontinued
Vertical segment	Desktop	Server
Performance
64 bit support
Base frequency	3.80 GHz
Bus Speed	800 MHz FSB
Die size	112 mm2
L1 cache	16 KB	128 KB
L2 cache	1024 KB	1024 KB
Manufacturing process technology	90 nm	90 nm
Maximum core temperature	72.8°C
Maximum frequency	3.8 GHz	1.8 GHz
Number of cores	1	2
Transistor count	125 million	233 million
VID voltage range	1.200V-1.425V
Memory
Supported memory types	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm
Sockets supported	PLGA775	940
Thermal Design Power (TDP)	115 Watt	95 Watt
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)