Xeon E7-4860 vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Xeon E7-4860 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2662	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Series	no data	Intel Xeon E7
Power efficiency	1.07	no data
Architecture codename	Wolfdale (2008−2010)	Westmere (2010−2011)
Release date	1 January 2008 (16 years ago)	5 April 2011 (13 years ago)
Launch price (MSRP)	no data	$3,838

Detailed specifications

Core 2 Duo E8400 and Xeon E7-4860 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	2 (Dual-core)	10 (Deca-Core)
Threads	2	20
Base clock speed	3 GHz	2.26 GHz
Boost clock speed	3 GHz	2.67 GHz
Bus type	no data	QPI
Bus rate	1333 MHz	6.4 GT/s
Multiplier	no data	17
L1 cache	64 KB (per core)	640 KB
L2 cache	6 MB (shared)	2.56 MB
L3 cache	0 KB	24 MB
Chip lithography	45 nm	32 nm
Die size	104 mm2	513 mm2
Maximum core temperature	no data	69 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	2600 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Duo E8400 and Xeon E7-4860 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	1	4 (Multiprocessor)
Socket	LGA775	LGA1567
Power consumption (TDP)	65 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Xeon E7-4860. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2
AES-NI	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	1.0
Hyper-Threading Technology	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Core 2 Duo E8400 and Xeon E7-4860 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Xeon E7-4860 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Xeon E7-4860. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3-800, DDR3-978, DDR3-1066, DDR3-1333, Speed-1066
Maximum memory size	no data	2 TB
Max memory channels	no data	4
Maximum memory bandwidth	no data	34.113 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Xeon E7-4860.

PCIe version

2.0

no data

Pros & cons summary

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Recency	1 January 2008	5 April 2011
Physical cores	2	10
Threads	2	20
Chip lithography	45 nm	32 nm
Power consumption (TDP)	65 Watt	130 Watt

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