Turion II Ultra M640 vs Turion II Ultra M620

Primary details

Comparing Turion II Ultra M620 and Turion II Ultra M640 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2859	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	AMD Turion II Ultra	AMD Turion II Ultra
Power efficiency	1.38	no data
Architecture codename	Caspian (2009)	Caspian (2009)
Release date	10 September 2009 (15 years ago)	10 September 2009 (15 years ago)

Detailed specifications

Turion II Ultra M620 and Turion II Ultra M640 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
Boost clock speed	2.5 GHz	2.6 GHz
Bus rate	3600 MHz	3600 MHz
L2 cache	2 MB	2 MB
Chip lithography	45 nm	45 nm
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Turion II Ultra M620 and Turion II Ultra M640 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) 638-pin	Socket S1 (s1g3) 638-pin
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Turion II Ultra M620 and Turion II Ultra M640. 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	MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization
PowerNow	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Turion II Ultra M620 and Turion II Ultra M640. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR2

Pros & cons summary

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Should you still have questions on choice between Turion II Ultra M620 and Turion II Ultra M640, ask them in Comments section, and we shall answer.

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