Pentium 4 660 vs Xeon E5-2640 v4

Primary details

Comparing Xeon E5-2640 v4 and Pentium 4 660 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	945	3198
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.75	no data
Market segment	Server	Desktop processor
Series	Intel Xeon E5	Pentium 4
Power efficiency	8.26	0.17
Architecture codename	Broadwell (2015−2019)	Prescott 2M
Release date	20 June 2016 (8 years ago)	no data (2024 years ago)
Launch price (MSRP)	$939	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5-2640 v4 and Pentium 4 660 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	10 (Deca-Core)	1 (Single-Core)
Threads	20	1
Base clock speed	2.4 GHz	3.6 GHz
Boost clock speed	3.4 GHz	3.6 GHz
Bus type	QPI	no data
Bus rate	2 × 8 GT/s	800 MHz
Multiplier	24	no data
L2 cache	2.5 MB	no data
L3 cache	25 MB	2 MB L2 Cache
Chip lithography	14 nm	90 nm
Die size	246.24 mm2	no data
Maximum core temperature	76 °C	71 °C
Number of transistors	3200 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	1.2V-1.4V

Compatibility

Information on Xeon E5-2640 v4 and Pentium 4 660 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	2 (Multiprocessor)	no data
Socket	FCLGA2011	PLGA775,PPGA775
Power consumption (TDP)	90 Watt	115 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2640 v4 and Pentium 4 660. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	no data
Demand Based Switching	+	-
PAE	46 Bit	no data
FSB parity	no data	-

Security technologies

Xeon E5-2640 v4 and Pentium 4 660 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2640 v4 and Pentium 4 660 are enumerated here.

VT-d	+	no data
VT-x	+	-
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2640 v4 and Pentium 4 660. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133	no data
Maximum memory size	1.5 TB	no data
Max memory channels	4	no data
Maximum memory bandwidth	68.3 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2640 v4 and Pentium 4 660.

PCIe version	3.0	no data
PCI Express lanes	40	no data

Pros & cons summary

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Performance score	7.86	0.21
Physical cores	10	1
Threads	20	1
Chip lithography	14 nm	90 nm
Power consumption (TDP)	90 Watt	115 Watt

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