Core i7-620UM vs A4 Micro-6400T

Primary details

Comparing A4 Micro-6400T and Core i7-620UM processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2602	2640
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	AMD A-Series	Intel Core i7
Architecture codename	Mullins (2014)	Arrandale (2010−2011)
Release date	29 April 2014 (10 years ago)	7 January 2010 (14 years ago)
Launch price (MSRP)	no data	$278
Current price	$340	no data

Detailed specifications

A4 Micro-6400T and Core i7-620UM 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)	2 (Dual-core)
Threads	4	4
Base clock speed	1 GHz	1.06 GHz
Boost clock speed	1.6 GHz	2.13 GHz
Bus support	no data	1 × 2.5 GT/s
L1 cache	no data	128 KB
L2 cache	2048 KB	512 KB
L3 cache	no data	4 MB
Chip lithography	28 nm	32 nm
Die size	no data	81+114 mm2
Maximum core temperature	no data	105 °C
Number of transistors	no data	382+177 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on A4 Micro-6400T and Core i7-620UM 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	FT3b	BGA1288
Power consumption (TDP)	4.5 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A4 Micro-6400T and Core i7-620UM. You'll probably need this information if you require some particular technology.

Instruction set extensions	86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, Single-Channel DDR3L-1333a	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	+
FMA	FMA4	+
AVX	+	no data
PowerTune	-	no data
TrueAudio	-	no data
PowerNow	+	no data
PowerGating	+	no data
Out-of-band client management	-	no data
VirusProtect	+	no data
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
Turbo Boost Technology	no data	+
Hyper-Threading Technology	no data	+
Idle States	no data	+
Thermal Monitoring	no data	+
Flex Memory Access	no data	+
PAE	no data	36 Bit
FDI	no data	+
Fast Memory Access	no data	+
Status	no data	Discontinued

Security technologies

A4 Micro-6400T and Core i7-620UM technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by A4 Micro-6400T and Core i7-620UM are enumerated here.

AMD-V	1	no data
VT-d	no data	+
VT-x	no data	+
EPT	no data	+
IOMMU 2.0	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by A4 Micro-6400T and Core i7-620UM. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1333	DDR3-800
Maximum memory size	no data	8 GB
Max memory channels	1	2
Maximum memory bandwidth	no data	12.8 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R3 Graphics	Intel® HD Graphics for Previous Generation Intel® Processors
Clear Video	no data	+
Clear Video HD	no data	+
Enduro	+	no data
Switchable graphics	1	no data
UVD	+	no data
VCE	+	no data
Graphics max frequency	no data	500 MHz

Graphics interfaces

Available interfaces and connections of A4 Micro-6400T and Core i7-620UM integrated GPUs.

Number of displays supported	no data	2
DisplayPort	+	no data
HDMI	+	no data

Graphics API support

APIs supported by A4 Micro-6400T and Core i7-620UM integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	1	no data

Peripherals

Specifications and connection of peripherals supported by A4 Micro-6400T and Core i7-620UM.

PCIe version	2.0	2.0
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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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.

A4 Micro-6400T outperforms Core i7-620UM by 8% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	0.70	0.65
Recency	29 April 2014	7 January 2010
Physical cores	4	2
Chip lithography	28 nm	32 nm
Power consumption (TDP)	4 Watt	18 Watt

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Should you still have questions on choice between A4 Micro-6400T and Core i7-620UM, ask them in Comments section, and we shall answer.

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