Turion II Ultra M640 vs Core 2 Duo T5900

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	3302	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Duo	AMD Turion II Ultra
Power efficiency	0.47	no data
Designer	Intel	AMD
Architecture codename	Merom (2006−2008)	Caspian (2009)
Release date	1 October 2008 (17 years ago)	10 September 2009 (16 years ago)

Detailed specifications

Basic parameters of Core 2 Duo T5900 and Turion II Ultra M640: 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	2.2 GHz	2.6 GHz
Bus rate	800 MHz	3600 MHz
L1 cache	128 KB	no data
L2 cache	2 MB	2 MB
Chip lithography	65 nm	45 nm
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core 2 Duo T5900 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 P	Socket S1 (s1g3) 638-pin
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T5900 and Turion II Ultra M640. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization
PowerNow	-	+
Enhanced SpeedStep (EIST)	+	no data
AMT	+	no data

Security technologies

Core 2 Duo T5900 and Turion II Ultra M640 technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T5900 and Turion II Ultra M640. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR2

Pros & cons summary

---

Recency	1 October 2008	10 September 2009
Chip lithography	65 nm	45 nm