AMD Athlon 64 X2 4000+ vs Intel Pentium D 950

General info

Comparing Pentium D 950 and Athlon 64 X2 4000+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance rating	2596	2598
Value for money	0.35	1.45
Market segment	Desktop processor	Desktop processor
Architecture codename	Presler (2006−2007)	Windsor (2006−2009)
Release date	January 2006 (17 years old)	May 2006 (16 years old)
Current price	$156	$130

Technical specs

Pentium D 950 and Athlon 64 X2 4000+ 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	3.4 GHz	no data
Boost clock speed	3.4 GHz	2 GHz
L1 cache	28 KB	256 KB
L2 cache	4 MB	512K
L3 cache	0 KB	0 KB
Chip lithography	65 nm	90 nm
Die size	140 mm2	220 mm2
Maximum core temperature	C1+D0=63 °C, B1=69 °C	no data
Number of transistors	376 million	154 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	no data
VID voltage range	1.2V-1.3375V	no data

Compatibility

Information on Pentium D 950 and Athlon 64 X2 4000+ 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	1
Socket	PLGA775	AM2
Thermal design power (TDP)	130 Watt	89 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 950 and Athlon 64 X2 4000+. You'll probably need this information if you require some particular technology.

AES-NI	-	no data
Enhanced SpeedStep (EIST)	+	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

Security technologies

Pentium D 950 and Athlon 64 X2 4000+ 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 Athlon 64 X2 4000+ are enumerated here.

VT-d	-	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 950 and Athlon 64 X2 4000+. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	no data
ECC memory support	-	no data

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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Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Advantages and disadvantages

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Boost clock speed	3400	2000
Chip lithography	65 nm	90 nm
Thermal design power (TDP)	130 Watt	89 Watt

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Should you still have questions on choice between Pentium D 950 and Athlon 64 X2 4000+, ask them in Comments section, and we shall answer.

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