A4 Micro-6400T vs i7-2840QM

Primary details

Comparing Core i7-2840QM and A4 Micro-6400T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1779	2739
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	AMD A-Series
Power efficiency	5.09	14.29
Architecture codename	Sandy Bridge (2011−2013)	Mullins (2014)
Release date	4 September 2011 (13 years ago)	29 April 2014 (10 years ago)

Detailed specifications

Core i7-2840QM and A4 Micro-6400T 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	4 (Quad-Core)	4 (Quad-Core)
Threads	8	4
Base clock speed	no data	1 GHz
Boost clock speed	2.4 GHz	1.6 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	24	no data
L1 cache	256 KB	no data
L2 cache	1 MB	2048 KB
L3 cache	8 MB	no data
Chip lithography	32 nm	28 nm
Die size	216 mm2	no data
Number of transistors	1160 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-2840QM and A4 Micro-6400T 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 (Uniprocessor)	no data
Socket	Socket G2	FT3b
Power consumption (TDP)	45 Watt	4.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2840QM and A4 Micro-6400T. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX
AES-NI	+	+
FMA	+	FMA4
AVX	+	+
PowerNow	-	+
PowerGating	-	+
VirusProtect	-	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data

Security technologies

Core i7-2840QM and A4 Micro-6400T technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-2840QM and A4 Micro-6400T are enumerated here.

AMD-V	-	+
VT-d	+	no data
VT-x	+	no data
IOMMU 2.0	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2840QM and A4 Micro-6400T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3-1333
Maximum memory size	32 GB	no data
Max memory channels	no data	1
Maximum memory bandwidth	25.598 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 3000	AMD Radeon R3 Graphics
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
VCE	-	+

Graphics interfaces

Available interfaces and connections of Core i7-2840QM and A4 Micro-6400T integrated GPUs.

DisplayPort	-	+
HDMI	-	+

Graphics API support

APIs supported by Core i7-2840QM and A4 Micro-6400T integrated GPUs, sometimes API versions are included.

DirectX	no data	DirectX® 12
Vulkan	-	+

Peripherals

Specifications and connection of peripherals supported by Core i7-2840QM and A4 Micro-6400T.

PCIe version

no data

2.0

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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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	2.42	0.68
Recency	4 September 2011	29 April 2014
Threads	8	4
Chip lithography	32 nm	28 nm
Power consumption (TDP)	45 Watt	4 Watt

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Should you still have questions on choice between Core i7-2840QM and A4 Micro-6400T, ask them in Comments section, and we shall answer.

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