A4-9120C vs Pentium D 840

Primary details

Comparing Pentium D 840 and A4-9120C processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	2857
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	AMD Bristol Ridge
Power efficiency	no data	8.51
Architecture codename	Smithfield (2005)	Stoney Ridge (2016−2019)
Release date	May 2005 (19 years ago)	6 January 2019 (5 years ago)

Detailed specifications

Pentium D 840 and A4-9120C 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	3.2 GHz	no data
Boost clock speed	3.2 GHz	1.6 GHz
Multiplier	no data	16
L1 cache	28 KB	160 KB
L2 cache	2 MB	1 MB
L3 cache	0 KB	no data
Chip lithography	90 nm	28 nm
Die size	206 mm2	124.5 mm2
Maximum core temperature	70 °C	no data
Number of transistors	169 million	1200 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.2V-1.4V	no data

Compatibility

Information on Pentium D 840 and A4-9120C 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	2	no data
Socket	PLGA775	BGA
Power consumption (TDP)	130 Watt	6 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 840 and A4-9120C. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Virtualization,
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Demand Based Switching	-	no data
PAE	32 Bit	no data
FSB parity	-	no data

Security technologies

Pentium D 840 and A4-9120C 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 Pentium D 840 and A4-9120C are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 840 and A4-9120C. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4
Maximum memory bandwidth	no data	14.936 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon R4 (Stoney Ridge) ( - 600 MHz)

Pros & cons summary

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Chip lithography	90 nm	28 nm
Power consumption (TDP)	130 Watt	6 Watt

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