Ryzen 7 4980U vs Pentium D 945

Primary details

Comparing Pentium D 945 and Ryzen 7 4980U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	703
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	AMD Renoir (Ryzen 4000 APU)
Power efficiency	no data	69.40
Architecture codename	Presler (2005−2007)	Renoir-U (Zen 2) (2020−2021)
Release date	23 July 2006 (18 years ago)	13 April 2021 (3 years ago)
Launch price (MSRP)	$163	no data

Detailed specifications

Pentium D 945 and Ryzen 7 4980U 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)	8 (Octa-Core)
Threads	2	16
Base clock speed	3.4 GHz	2 GHz
Boost clock speed	3.4 GHz	4.4 GHz
Multiplier	no data	20
L1 cache	16 KB (per core)	512 KB
L2 cache	2 MB (per die)	4 MB
L3 cache	0 KB	8 MB
Chip lithography	65 nm	7 nm
Die size	2x 81 mm2	156 mm2
Maximum core temperature	no data	105 °C
Maximum case temperature (TCase)	63 °C	no data
Number of transistors	376 million	9800 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.2V-1.3375V	no data

Compatibility

Information on Pentium D 945 and Ryzen 7 4980U 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,PLGA775	FP6
Power consumption (TDP)	95 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 945 and Ryzen 7 4980U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA
AES-NI	-	+
FMA	-	+
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 945 and Ryzen 7 4980U 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 945 and Ryzen 7 4980U 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 945 and Ryzen 7 4980U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4
Maximum memory size	no data	64 GB
Maximum memory bandwidth	no data	68.27 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

AMD Radeon RX Vega 8 (Ryzen 4000/5000)

Pros & cons summary

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Recency	23 July 2006	13 April 2021
Physical cores	2	8
Threads	2	16
Chip lithography	65 nm	7 nm
Power consumption (TDP)	95 Watt	15 Watt

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