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AMD Phenom II X2 N640

The AMD Phenom II Dual-Core Mobile N640 is a dual core processor for laptops that clocks with 2.9 GHz. Due to the missing level 3 cache, the architecture is similar to the desktop Athlon II X2 (Athlon II X2 245 - Regor).

The performance should be similar to a 2.7 GHz Core 2 Duo (because of the larger Cache of the Core 2 series in this clock range). Compared to current Intel Core-i processors, the Phenom II N640 is only as fast as an entry level Core i3-350M in synthetic benchmarks.

As a difference to the Core 2 series, the Phenom II offers an integrated DDR3 memory controller on the processor die.

SeriesAMD Phenom II X2

Series: Phenom II X2 Champlain

AMD Phenom II X2 X640 BE compare3.2 GHz2 / 2 cores
AMD Phenom II X2 X620 BE compare3.1 GHz2 / 2 cores
AMD Phenom II X2 N660 compare3 GHz2 / 2 cores
AMD Phenom II X2 N640 « 2.9 GHz2 / 2 cores
AMD Phenom II X2 P650 compare2.8 GHz2 / 2 cores
AMD Phenom II X2 N620 compare2.8 GHz2 / 2 cores
Clock Rate2900 MHz
Front Side Bus3600
Level 1 Cache256 KB
Level 2 Cache2 MB
Number of Cores / Threads2 / 2
Power Consumption (TDP = Thermal Design Power)35 Watt
Manufacturing Technology45 nm
FeaturesDDR3 memory controller, HyperTransport 3.0, SSE4A, AMD64, Enhanced Virus Protection, Vurtualization
64 Bit64 Bit support
Announcement Date10/01/2010


- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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show all (including archived), 2024, 2023
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#2 did not recreate cache, as it is less than 5 days old! Created at Tue, 13 Feb 2024 05:33:17 +0100 +0.001s ... 0.001s

#3 composed specs +0.006s ... 0.007s

#4 did output specs +0s ... 0.007s

#5 getting avg benchmarks for device 1458 +0.003s ... 0.01s

#6 got single benchmarks 1458 +0.008s ... 0.017s

#7 got avg benchmarks for devices +0s ... 0.017s

#8 min, max, avg, median took s +0.027s ... 0.044s

#9 return log +0.024s ... 0.068s

Reviews for the AMD Phenom II X2 N640 processor

Toshiba Satellite L675D-S7052: ATI Radeon HD 4250, 17.30", 3 kg
  External Review » Toshiba Satellite L675D-S7052

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Other CPUs of the series Phenom II X2

» AMD Phenom II X2 X640 BE
   2x 3.2 GHz
» AMD Phenom II X2 X620 BE
   2x 3.1 GHz
» AMD Phenom II X2 N660
   2x 3 GHz
» AMD Phenom II X2 N640
   2x 2.9 GHz
» AMD Phenom II X2 P650
   2x 2.8 GHz
» AMD Phenom II X2 N620
   2x 2.8 GHz

Surrounding CPUs

+ Intel Core i3-350M
   2x 2.26 GHz
+ Intel Pentium Gold 4410Y
   2x 1.5 GHz
+ Intel Celeron 3965Y
   2x 1.5 GHz
+ Intel Pentium B960
   2x 2.2 GHz
+ Intel Pentium 3805U
   2x 1.9 GHz
» AMD Phenom II X2 N640
   2x 2.9 GHz
- Intel Core 2 Extreme X7800
   2x 2.6 GHz
- Intel Core 2 Duo T7800
   2x 2.6 GHz
- Intel Core 2 Duo P8700
   2x 2.53 GHz
- Intel Core i3-4020Y
   2x 1.5 GHz
- Intel Core i3-4012Y
   2x 1.5 GHz
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Notebook Processors > AMD Phenom II X2 N640 Notebook Processor
Klaus Hinum (Update: 2017-09- 5)