EPYC 9654 vs Pentium D 950

Primary details

Comparing Pentium D 950 and EPYC 9654 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	6
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	1.28
Market segment	Desktop processor	Server
Series	no data	AMD EPYC
Power efficiency	no data	19.89
Architecture codename	Presler (2005−2007)	Genoa (2022−2023)
Release date	16 January 2006 (18 years ago)	10 November 2022 (2 years ago)
Launch price (MSRP)	$637	$11,805

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium D 950 and EPYC 9654 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)	96
Threads	2	192
Base clock speed	3.4 GHz	2.4 GHz
Boost clock speed	3.4 GHz	2.4 GHz
Multiplier	no data	24
L1 cache	16 KB (per core)	6 MB
L2 cache	2 MB (per die)	96 MB
L3 cache	0 KB	384 MB (shared)
Chip lithography	65 nm	5 nm, 6 nm
Die size	2x 81 mm2	12x 72 mm2
Maximum core temperature	C1+D0=63 °C, B1=69 °C	no data
Number of transistors	376 million	78,840 million
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	1.2V-1.3375V	no data

Compatibility

Information on Pentium D 950 and EPYC 9654 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	2
Socket	LGA775,PLGA775	SP5
Power consumption (TDP)	130 Watt	360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 950 and EPYC 9654. You'll probably need this information if you require some particular technology.

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
Precision Boost 2	no data	+

Security technologies

Pentium D 950 and EPYC 9654 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 950 and EPYC 9654 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 950 and EPYC 9654. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR5-4800
Maximum memory size	no data	6 TiB
Maximum memory bandwidth	no data	460.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Pentium D 950 and EPYC 9654.

PCIe version	no data	5.0
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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Recency	16 January 2006	10 November 2022
Physical cores	2	96
Threads	2	192
Chip lithography	65 nm	5 nm
Power consumption (TDP)	130 Watt	360 Watt

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