Xeon E5420 vs A8-6600K

Primary details

Comparing A8-6600K and Xeon E5420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1964	2281
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.23	no data
Market segment	Desktop processor	Server
Series	AMD A-Series (Desktop)	no data
Power efficiency	1.79	1.50
Architecture codename	Richland (2013−2014)	no data
Release date	1 June 2013 (11 years ago)	1 October 2007 (17 years ago)
Launch price (MSRP)	$142	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

A8-6600K and Xeon E5420 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)	no data
Threads	4	no data
Base clock speed	3.9 GHz	2.5 GHz
Boost clock speed	4.2 GHz	no data
L1 cache	192 KB	no data
L2 cache	4096 KB	no data
L3 cache	0 KB	12 MB L2 Cache
Chip lithography	32 nm	45 nm
Die size	246 mm2	no data
Maximum core temperature	74 °C	67 °C
Maximum case temperature (TCase)	74 °C	no data
Number of transistors	1,178 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-
VID voltage range	no data	0.85V-1.35V

Compatibility

Information on A8-6600K and Xeon E5420 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	no data
Socket	FM2	LGA771
Power consumption (TDP)	100 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-6600K and Xeon E5420. You'll probably need this information if you require some particular technology.

AES-NI	+	-
FMA	FMA4	-
AVX	AVX	-
PowerNow	+	-
PowerGating	+	-
VirusProtect	+	-
Enhanced SpeedStep (EIST)	no data	+
Turbo Boost Technology	no data	-
Hyper-Threading Technology	no data	-
Idle States	no data	+
Thermal Monitoring	-	+
Demand Based Switching	no data	+
FSB parity	no data	+

Security technologies

A8-6600K and Xeon E5420 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 A8-6600K and Xeon E5420 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-6600K and Xeon E5420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	no data
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon HD 8570D	no data
Number of pipelines	256	no data
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A8-6600K and Xeon E5420 integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A8-6600K and Xeon E5420 integrated GPUs, sometimes API versions are included.

DirectX

DirectX® 11

no data

Peripherals

Specifications and connection of peripherals supported by A8-6600K and Xeon E5420.

PCIe version

2.0

no data

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	1.89	1.27
Recency	1 June 2013	1 October 2007
Chip lithography	32 nm	45 nm
Power consumption (TDP)	100 Watt	80 Watt

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Should you still have questions on choice between A8-6600K and Xeon E5420, ask them in Comments section, and we shall answer.

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