Phenom II X3 P840 vs Athlon II M300

Place in the ranking	2984	2600
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	AMD Athlon II	3x AMD Phenom II
Power efficiency	1.14	3.10
Architecture codename	Caspian (2009)	Champlain (2010−2011)
Release date	10 September 2009 (15 years ago)	4 October 2010 (14 years ago)

Detailed specifications

Athlon II M300 and Phenom II X3 P840 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)	3 (Tri-Core)
Threads	2	3
Boost clock speed	2 GHz	1.9 GHz
Bus rate	3200 MHz	3600 MHz
L1 cache	128 KB	384 KB
L2 cache	1 MB	1.5 MB
Chip lithography	45 nm	45 nm
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon II M300 and Phenom II X3 P840 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.

Socket	Socket S1 (S1g3)	S1
Power consumption (TDP)	35 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II M300 and Phenom II X3 P840. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization	Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a)
PowerNow	+	-
VirusProtect	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II M300 and Phenom II X3 P840 are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II M300 and Phenom II X3 P840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR2

DDR3

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark 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.

Athlon II M300 0.42

Phenom II X3 P840 0.82
+95.2%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Athlon II M300 3319

Phenom II X3 P840 4425
+33.3%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Athlon II M300 39.24

Phenom II X3 P840 27.7
+41.7%

Gaming performance

Pros & cons summary

Performance score	0.42	0.82
Recency	10 September 2009	4 October 2010
Physical cores	2	3
Threads	2	3
Power consumption (TDP)	35 Watt	25 Watt

Phenom II X3 P840 has a 95.2% higher aggregate performance score, an age advantage of 1 year, 50% more physical cores and 50% more threads, and 40% lower power consumption.

The Phenom II X3 P840 is our recommended choice as it beats the Athlon II M300 in performance tests.

Should you still have questions on choice between Athlon II M300 and Phenom II X3 P840, ask them in Comments section, and we shall answer.