Phenom II X2 X640 BE vs Athlon X4 950

Place in the ranking	1811	2452
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.66	no data
Market segment	Desktop processor	Laptop
Series	no data	2x AMD Phenom II
Power efficiency	3.30	2.13
Architecture codename	Bristol Ridge (2016−2019)	Champlain (2010−2011)
Release date	27 July 2017 (7 years ago)	12 May 2011 (13 years ago)
Launch price (MSRP)	$60	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon X4 950 and Phenom II X2 X640 BE 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	4 (Quad-Core)	2 (Dual-core)
Threads	4	2
Base clock speed	3.5 GHz	no data
Boost clock speed	3.8 GHz	3.2 GHz
Bus rate	no data	3600 MHz
L1 cache	128 KB (per core)	256 KB
L2 cache	512 KB (per core)	2 MB
L3 cache	0 KB	no data
Chip lithography	28 nm	45 nm
Die size	246 mm²	no data
Maximum case temperature (TCase)	74 °C	no data
Number of transistors	1,178 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Athlon X4 950 and Phenom II X2 X640 BE 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	AM4	S1
Power consumption (TDP)	65 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X4 950 and Phenom II X2 X640 BE. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, 3DNow!, SSE1-3A, AMD64, Enhanced Virus Protection, Virtualization
AES-NI	+	-
FMA	+	-
AVX	+	-
VirusProtect	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X4 950 and Phenom II X2 X640 BE are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X4 950 and Phenom II X2 X640 BE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR4 Dual-channel

DDR3

Gaming performance

Pros & cons summary

Performance score	2.31	1.03
Recency	27 July 2017	12 May 2011
Physical cores	4	2
Threads	4	2
Chip lithography	28 nm	45 nm
Power consumption (TDP)	65 Watt	45 Watt

Athlon X4 950 has a 124.3% higher aggregate performance score, an age advantage of 6 years, 100% more physical cores and 100% more threads, and a 60.7% more advanced lithography process.

Phenom II X2 X640 BE, on the other hand, has 44.4% lower power consumption.

The Athlon X4 950 is our recommended choice as it beats the Phenom II X2 X640 BE in performance tests.

Note that Athlon X4 950 is a desktop processor while Phenom II X2 X640 BE is a notebook one.

Should you still have questions on choice between Athlon X4 950 and Phenom II X2 X640 BE, ask them in Comments section, and we shall answer.