Opteron 842 vs Xeon E5-2640 v2

Primary details

Comparing Xeon E5-2640 v2 and Opteron 842 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1250	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.29	no data
Market segment	Server	Server
Power efficiency	4.76	no data
Architecture codename	Ivy Bridge-EP (2013)	SledgeHammer (2003−2005)
Release date	1 September 2013 (11 years ago)	June 2003 (21 year ago)
Launch price (MSRP)	$728	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5-2640 v2 and Opteron 842 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
Base clock speed	2 GHz	no data
Boost clock speed	2.5 GHz	1.6 GHz
Bus rate	7.2 GT/s	no data
L1 cache	64 KB (per core)	128 KB
L2 cache	256 KB (per core)	1 MB
L3 cache	20 MB (shared)	0 KB
Chip lithography	22 nm	130 nm
Die size	160 mm2	193 mm2
Maximum core temperature	75 °C	no data
Number of transistors	1,400 million	106 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E5-2640 v2 and Opteron 842 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	8
Socket	FCLGA2011	940
Power consumption (TDP)	95 Watt	85 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2640 v2 and Opteron 842. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon E5-2640 v2 and Opteron 842 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2640 v2 and Opteron 842 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2640 v2 and Opteron 842. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	768 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	51.2 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2640 v2 and Opteron 842.

PCIe version	3.0	no data
PCI Express lanes	40	no data

Pros & cons summary

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Physical cores	8	1
Threads	16	1
Chip lithography	22 nm	130 nm
Power consumption (TDP)	95 Watt	85 Watt

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Should you still have questions on choice between Xeon E5-2640 v2 and Opteron 842, ask them in Comments section, and we shall answer.

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