A9-9420 vs Xeon W3520

Primary details

Comparing Xeon W3520 and A9-9420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1891	2397
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.11	no data
Market segment	Server	Laptop
Series	no data	AMD Bristol Ridge
Architecture codename	Bloomfield (2008−2010)	Stoney Ridge (2016−2019)
Release date	March 2009 (15 years ago)	31 May 2016 (8 years ago)
Launch price (MSRP)	$404	no data
Current price	$70 (0.2x MSRP)	$440

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon W3520 and A9-9420 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	8	2
Base clock speed	2.66 GHz	3 GHz
Boost clock speed	2.93 GHz	3.6 GHz
L1 cache	64 KB (per core)	160 KB
L2 cache	256 KB (per core)	1 MB (shared)
L3 cache	8 MB (shared)	no data
Chip lithography	45 nm	28 nm
Die size	263 mm2	125 mm2
Maximum core temperature	68 °C	90 °C
Maximum case temperature (TCase)	no data	74 °C
Number of transistors	731 million	1,200 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon W3520 and A9-9420 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
Socket	FCLGA1366	FT4
Power consumption (TDP)	130 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W3520 and A9-9420. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Single-Channel DDR4-2133, Virtualization,
AES-NI	-	+
FMA	no data	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	-	no data
Demand Based Switching	+	no data
PAE	36 Bit	no data
Status	Discontinued	no data

Security technologies

Xeon W3520 and A9-9420 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 Xeon W3520 and A9-9420 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W3520 and A9-9420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	24 GB	no data
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	+	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Radeon R5

Peripherals

Specifications and connection of peripherals supported by Xeon W3520 and A9-9420.

PCIe version	no data	3.0
PCI Express lanes	no data	8

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.

Xeon W3520 outperforms A9-9420 by 96% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.90	0.97
Physical cores	4	2
Threads	8	2
Chip lithography	45 nm	28 nm
Power consumption (TDP)	130 Watt	15 Watt

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Should you still have questions on choice between Xeon W3520 and A9-9420, ask them in Comments section, and we shall answer.

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