Pentium 4 2.66 vs Xeon E5-2620 v4

Primary details

Comparing Xeon E5-2620 v4 and Pentium 4 2.66 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1082	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.01	no data
Market segment	Server	Desktop processor
Series	Intel Xeon E5	no data
Architecture codename	Broadwell (2014−2019)	Northwood (2002−2004)
Release date	20 June 2016 (8 years ago)	August 2002 (22 years ago)
Launch price (MSRP)	$417	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5-2620 v4 and Pentium 4 2.66 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	8 (Octa-Core)	1 (Single-Core)
Threads	16	1
Boost clock speed	2.1 GHz	2.66 GHz
Bus type	QPI	no data
Bus rate	2 × 8 GT/s	no data
Multiplier	21	no data
L1 cache	no data	8 KB
L2 cache	2 MB	512 KB
L3 cache	20 MB	0 KB
Chip lithography	14 nm	130 nm
Die size	246.24 mm2	146 mm2
Maximum core temperature	74 °C	no data
Number of transistors	3200 Million	55 million
64 bit support	+	-
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E5-2620 v4 and Pentium 4 2.66 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)	1
Socket	no data	478
Power consumption (TDP)	85 Watt	110 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2620 v4 and Pentium 4 2.66. You'll probably need this information if you require some particular technology.

AES-NI	+	no data
AVX	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
TSX	+	no data

Security technologies

Xeon E5-2620 v4 and Pentium 4 2.66 technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2620 v4 and Pentium 4 2.66. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR1, DDR2
Maximum memory size	1,536 GB	no data
Maximum memory bandwidth	68.3 GB/s	no data
ECC memory support	+	no data

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2620 v4 and Pentium 4 2.66.

PCIe version	3.0	no data
PCI Express lanes	40	no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Physical cores	8	1
Threads	16	1
Chip lithography	14 nm	130 nm
Power consumption (TDP)	85 Watt	110 Watt

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Should you still have questions on choice between Xeon E5-2620 v4 and Pentium 4 2.66, ask them in Comments section, and we shall answer.

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