A9-9420e vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and A9-9420e processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2541	2580
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.86	no data
Market segment	Desktop processor	Laptop
Series	no data	AMD Bristol Ridge
Architecture codename	Wolfdale (2008−2010)	Stoney Ridge (2016−2019)
Release date	1 January 2008 (16 years ago)	1 June 2018 (5 years ago)
Current price	$67	$380

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Duo E8400 and A9-9420e 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)	2 (Dual-core)
Threads	2	2
Base clock speed	3 GHz	no data
Boost clock speed	3 GHz	no data
L1 cache	64 KB (per core)	no data
L2 cache	6 MB (shared)	1 MB
L3 cache	0 KB	no data
Chip lithography	45 nm	28 nm
Die size	104 mm2	124.5 mm2
Maximum core temperature	72 °C	90 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	1200 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Duo E8400 and A9-9420e 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	LGA775	BGA
Power consumption (TDP)	65 Watt	no data

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and A9-9420e. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Single-Channel DDR4-2133?, Virtualization,
AES-NI	-	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
Demand Based Switching	-	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Core 2 Duo E8400 and A9-9420e 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 Core 2 Duo E8400 and A9-9420e are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and A9-9420e. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

DDR4

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

AMD Radeon R5 (Stoney Ridge)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and A9-9420e.

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.

Core 2 Duo E8400 outperforms A9-9420e by 6% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	0.75	0.71
Recency	1 January 2008	1 June 2018
Chip lithography	45 nm	28 nm

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Should you still have questions on choice between Core 2 Duo E8400 and A9-9420e, ask them in Comments section, and we shall answer.

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