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AMD Turion II Ultra M640

The AMD Turion II Ultra M640 is a middle class Dual Core CPU by AMD for laptops. The Caspian called core should be based on the K10 architecture (maybe only partly) and therefore similar to the desktop Athlon II (which performs better at the same clock rate). The performance of the Turion M640 should be comparable to a 2.2-2.3 Ghz clocked Core 2 Duo like the P7450 (which have more Level 2 Cache) and therefore not in the high end class. The M640 features an integrated memory controller (dual channel for 400MHz DDR2).

SeriesAMD Turion II Ultra
CodenameCaspian
Series: Turion II Ultra Caspian
AMD Turion II Ultra M660 (compare)2700 MHz2 / 2
» AMD Turion II Ultra M6402600 MHz2 / 2
AMD Turion II Ultra M620 (compare)2500 MHz2 / 2
AMD Turion II Ultra M600 (compare)2400 MHz2 / 2
Clock Rate2600 MHz
Front Side Bus3600
Level 2 Cache2 MB
Number of Cores / Threads2 / 2
Max. Power Consumption (TDP = Thermal Design Power)35 Watt
Manufacturing Technology45 nm
SocketSocket S1 (s1g3) 638-Pin
FeaturesDual-channel DDR2 memory controller, MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization
64 Bit64 Bit support
Announcement Date09/10/2009

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Reviews for the AMD Turion II Ultra M640 processor

HP Pavilion dv6-3143cl (ATI Radeon HD 4250, 15.6")
» HP Pavilion dv6-3143cl - External Review

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Other CPUs of the series AMD Turion II Ultra

» AMD Turion II Ultra M660
   2.7 GHz / 2 MB L2
» AMD Turion II Ultra M640
   2.6 GHz / 2 MB L2
» AMD Turion II Ultra M620
   2.5 GHz / 2 MB L2
» AMD Turion II Ultra M600
   2.4 GHz / 2 MB L2

Surrounding CPUs

- Intel Core 2 Duo SL9600
   2.13 GHz / 6 MB
- Intel Core 2 Duo P7450
   2.13 GHz / 3 MB
- AMD Phenom II X3 P840
   1.9 GHz / 1.5 MB
- AMD Phenom II X4 P920
   1.6 GHz / 2 MB
- AMD Turion II N550
   2.6 GHz / 2 MB
» AMD Turion II Ultra M640
   2.6 GHz / 2 MB L2
+ Intel Core 2 Duo T7400
   2.16 GHz / 4096 KB
+ Intel Core 2 Duo T6670
   2.2 GHz / 2048 KB
+ Intel Core 2 Duo T6600
   2.2 GHz / 2048 KB
+ AMD Turion II P560
   2.5 GHz / 2048 KB
+ AMD Turion II N530
   2.5 GHz / 2048 KB
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > AMD Turion II Ultra M640 Notebook Processor
Klaus Hinum (Update: 2017-09- 5)