EPYC 7343 vs Pentium D 820

Primary details

Comparing Pentium D 820 and EPYC 7343 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	149
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	21.26
Market segment	Desktop processor	Server
Series	Pentium D	AMD EPYC
Architecture codename	Smithfield (2005)	Milan (2021)
Release date	May 2005 (19 years ago)	12 January 2021 (3 years ago)
Launch price (MSRP)	no data	$1,565
Current price	$169	$1111 (0.7x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium D 820 and EPYC 7343 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)	16 (Hexadeca-Core)
Threads	2	32
Base clock speed	2.8 GHz	3.2 GHz
Boost clock speed	2.8 GHz	3.9 GHz
Bus support	800 MHz	no data
L1 cache	28 KB	1 MB
L2 cache	2 MB	8 MB
L3 cache	0 KB	128 MB (shared)
Chip lithography	90 nm	7 nm+
Die size	206 mm2	4x 81 mm2
Maximum core temperature	64 °C	no data
Number of transistors	169 million	16,600 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes
VID voltage range	1.2V-1.4V	no data

Compatibility

Information on Pentium D 820 and EPYC 7343 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	2
Socket	PLGA775	SP3
Power consumption (TDP)	95 Watt	190 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 820 and EPYC 7343. You'll probably need this information if you require some particular technology.

AES-NI	-	+
AVX	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
PAE	32 Bit	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Pentium D 820 and EPYC 7343 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 820 and EPYC 7343 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 Pentium D 820 and EPYC 7343. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4-3200
Maximum memory size	no data	4 TiB
Maximum memory bandwidth	no data	204.795 GB/s
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Pentium D 820 and EPYC 7343.

PCIe version	no data	4.0
PCI Express lanes	no data	128

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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Pros & cons summary

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Physical cores	2	16
Threads	2	32
Chip lithography	90 nm	7 nm
Power consumption (TDP)	95 Watt	190 Watt

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Should you still have questions on choice between Pentium D 820 and EPYC 7343, ask them in Comments section, and we shall answer.

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