Atom x5-E3940 vs Core 2 Duo T7400

Primary details

Comparing Core 2 Duo T7400 and Atom x5-E3940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	2212
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Duo	5x Intel Atom
Architecture codename	Merom (2006−2008)	Apollo Lake (2016)
Release date	28 August 2006 (17 years ago)	30 August 2014 (9 years ago)
Launch price (MSRP)	$286	no data
Current price	$60 (0.2x MSRP)	$546

Detailed specifications

Core 2 Duo T7400 and Atom x5-E3940 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)	4 (Quad-Core)
Threads	2	4
Base clock speed	2.16 GHz	1.6 GHz
Boost clock speed	2.16 GHz	1.8 GHz
Bus support	667 MHz	no data
L1 cache	64 KB	56K (per core)
L2 cache	4 MB	2 MB (shared)
L3 cache	0 KB	0 KB
Chip lithography	65 nm	14 nm
Die size	143 mm2	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	103 °C
Number of transistors	291 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	1.1625V-1.3V	no data

Compatibility

Information on Core 2 Duo T7400 and Atom x5-E3940 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	1 (Uniprocessor)
Socket	PBGA479,PPGA478	Intel BGA 1296
Power consumption (TDP)	34 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T7400 and Atom x5-E3940. You'll probably need this information if you require some particular technology.

AES-NI	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	-	no data
Demand Based Switching	-	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Core 2 Duo T7400 and Atom x5-E3940 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T7400 and Atom x5-E3940 are enumerated here.

VT-d	no data	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T7400 and Atom x5-E3940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3-1866
Maximum memory size	no data	8 GB

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Intel HD Graphics 500

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T7400 and Atom x5-E3940.

PCIe version	no data	2.0
PCI Express lanes	no data	4

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	28 August 2006	30 August 2014
Physical cores	2	4
Threads	2	4
Chip lithography	65 nm	14 nm
Power consumption (TDP)	34 Watt	10 Watt

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Should you still have questions on choice between Core 2 Duo T7400 and Atom x5-E3940, ask them in Comments section, and we shall answer.

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