Intel Pentium 4 HT 640 vs Intel Pentium 4 HT 650

Comparative analysis of Intel Pentium 4 HT 640 and Intel Pentium 4 HT 650 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization.

Intel Pentium 4 HT 640

Intel Pentium 4 HT 650

Differences

Reasons to consider the Intel Pentium 4 HT 650

Around 6% higher clock speed: 3.4 GHz vs 3.2 GHz

Maximum frequency	3.4 GHz vs 3.2 GHz

Compare specifications (specs)

	Intel Pentium 4 HT 640	Intel Pentium 4 HT 650
Essentials
Architecture codename	Prescott	Prescott
Launch date	February 2005	February 2005
Place in performance rating	not rated	not rated
Processor Number	640	650
Series	Legacy Intel® Pentium® Processor	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.20 GHz	3.40 GHz
Bus Speed	800 MHz FSB	800 MHz FSB
Die size	135 mm2	135 mm2
L1 cache	28 KB	28 KB
L2 cache	2048 KB	2048 KB
Manufacturing process technology	90 nm	90 nm
Maximum core temperature	66.6°C	66.6°C
Maximum frequency	3.2 GHz	3.4 GHz
Number of cores	1	1
Transistor count	169 million	169 million
VID voltage range	1.200V-1.400V	1.200V-1.400V
Memory
Supported memory types	DDR1, DDR2, DDR3	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	PLGA775	PLGA775
Thermal Design Power (TDP)	84 Watt	84 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)