Xeon E-2456 vs Core 2 Duo T6400

Primary details

Comparing Core 2 Duo T6400 and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	469
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	92.83
Market segment	Laptop	Server
Series	Intel Core 2 Duo	no data
Power efficiency	no data	17.70
Architecture codename	Penryn (2008−2011)	Raptor Lake-S (2023−2024)
Release date	1 January 2009 (15 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	no data	$375

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Duo T6400 and Xeon E-2456 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)	6 (Hexa-Core)
Threads	2	12
Base clock speed	2 GHz	3.3 GHz
Boost clock speed	2 GHz	5.1 GHz
Bus rate	800 MHz	16 GT/s
L1 cache	no data	80 KB (per core)
L2 cache	2 MB	1.25 MB (per core)
L3 cache	2 MB L2 Cache	18 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	no data	163 mm2
Maximum core temperature	105 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	1V-1.25V	no data

Compatibility

Information on Core 2 Duo T6400 and Xeon E-2456 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	PGA478	FCLGA1700
Power consumption (TDP)	35 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T6400 and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	2
Hyper-Threading Technology	-	+
Idle States	no data	+
Thermal Monitoring	-	+
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	-

Security technologies

Core 2 Duo T6400 and Xeon E-2456 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 Core 2 Duo T6400 and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T6400 and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR5-4800
Maximum memory size	no data	128 GB
Max memory channels	no data	2
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T6400 and Xeon E-2456.

PCIe version	no data	5
PCI Express lanes	no data	16

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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Recency	1 January 2009	14 December 2023
Physical cores	2	6
Threads	2	12
Power consumption (TDP)	35 Watt	80 Watt

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Should you still have questions on choice between Core 2 Duo T6400 and Xeon E-2456, ask them in Comments section, and we shall answer.

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