Pentium D 820 vs Athlon 64 2650e

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Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated3317
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Seriesno dataPentium D
Power efficiencyno data0.12
DesignerAMDIntel
Architecture codenameLima (2008−2009)Smithfield (2005)
Release date1 January 2009 (16 years ago)May 2005 (20 years ago)

Detailed specifications

Athlon 64 2650e and Pentium D 820 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 cores1 (Single-Core)2 (Dual-core)
Threads12
Base clock speedno data2.8 GHz
Boost clock speed1.6 GHz2.8 GHz
Bus rateno data800 MHz
L1 cache128 KB28 KB
L2 cache512 KB2 MB
L3 cache0 KB0 KB
Chip lithography65 nm90 nm
Die size77 mm2206 mm2
Maximum core temperatureno data64 °C
Number of transistors122 million169 million
64 bit support++
Windows 11 compatibility--
VID voltage rangeno data1.2V-1.4V

Compatibility

Information on Athlon 64 2650e and Pentium D 820 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 configuration12
SocketAM2PLGA775
Power consumption (TDP)15 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon 64 2650e and Pentium D 820. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)no data-
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
Idle Statesno data+
Demand Based Switchingno data-
PAEno data32 Bit
FSB parityno data-

Security technologies

Athlon 64 2650e and Pentium D 820 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon 64 2650e and Pentium D 820 are enumerated here.

VT-dno data-
VT-xno data-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 2650e and Pentium D 820. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR2DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)no data

Peripherals

Specifications and connection of peripherals supported by Athlon 64 2650e and Pentium D 820.

PCIe version2.0no data

Pros & cons summary


Physical cores 1 2
Threads 1 2
Chip lithography 65 nm 90 nm
Power consumption (TDP) 15 Watt 95 Watt

Athlon 64 2650e has a 38.5% more advanced lithography process, and 533.3% lower power consumption.

Pentium D 820, on the other hand, has 100% more physical cores and 100% more threads.

We couldn't decide between AMD Athlon 64 2650e and Intel Pentium D 820. We've got no test results to judge.

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AMD Athlon 64 2650e
Athlon 64 2650e
Intel Pentium D 820
Pentium D 820

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Community ratings

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2.9 29 votes

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