Pentium Dual-Core E2140 vs Pentium 4 660

Place in the ranking	3198	3059
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Series	Pentium 4	no data
Power efficiency	0.17	0.50
Architecture codename	Prescott 2M	Allendale (2006−2009)
Release date	no data (2024 years ago)	June 2007 (17 years ago)

Detailed specifications

Pentium 4 660 and Pentium Dual-Core E2140 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	1 (Single-Core)	2 (Dual-core)
Threads	1	2
Base clock speed	3.6 GHz	no data
Boost clock speed	3.6 GHz	1.6 GHz
Bus rate	800 MHz	no data
L1 cache	no data	64 KB (per core)
L2 cache	no data	1 MB (shared)
L3 cache	2 MB L2 Cache	0 KB
Chip lithography	90 nm	65 nm
Die size	no data	77 mm²
Maximum core temperature	71 °C	no data
Number of transistors	no data	105 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.2V-1.4V	no data

Compatibility

Information on Pentium 4 660 and Pentium Dual-Core E2140 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	no data	1
Socket	PLGA775,PPGA775	775
Power consumption (TDP)	115 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 4 660 and Pentium Dual-Core E2140. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Pentium 4 660 and Pentium Dual-Core E2140 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 4 660 and Pentium Dual-Core E2140 are enumerated here.

VT-x

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 4 660 and Pentium Dual-Core E2140. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR1, DDR2, DDR3

Gaming performance

Pros & cons summary

Performance score	0.21	0.34
Physical cores	1	2
Threads	1	2
Chip lithography	90 nm	65 nm
Power consumption (TDP)	115 Watt	65 Watt

Pentium Dual-Core E2140 has a 61.9% higher aggregate performance score, 100% more physical cores and 100% more threads, a 38.5% more advanced lithography process, and 76.9% lower power consumption.

The Pentium Dual-Core E2140 is our recommended choice as it beats the Pentium 4 660 in performance tests.

Should you still have questions on choice between Pentium 4 660 and Pentium Dual-Core E2140, ask them in Comments section, and we shall answer.