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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
CodenameChamplain
Clock Rate2900 MHz
Front Side Bus3600 MHz
Level 1 Cache256 KB
Level 2 Cache2048 KB
Number of Cores / Threads2 / 2
Max. Power Consumption (TDP = Thermal Design Power)35 Watt
Manufacturing Technology45 nm
SocketS1
FeaturesDDR3 memory controller, HyperTransport 3.0, SSE4A, AMD64, Enhanced Virus Protection, Vurtualization
64 Bit64 Bit support
Hardware VirtualizationAMD-V
Announcement Date10/01/2010

Benchmarks

Cinebench R11.5 - CPU Multi 64Bit
0% 100%
min: 1.66      avg: 1.7 (9%)     median: 1.7 (9%)     max: 1.66 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

#0 Did not recreate cache, as it is less than 5 days old +0.001s ... 0.001s

#1 min, max, avg, median took 8.8214874267578E-6s +0.016s ... 0.017s

#2 return log +0s ... 0.017s

Reviews for the AMD Phenom II X2 N640 processor

Toshiba Satellite L675D-S7052 (ATI Radeon HD 4250, 17.3")
» Toshiba Satellite L675D-S7052 - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series AMD Phenom II X2

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

Surrounding CPUs

- Intel Pentium B960
   2.2 GHz / 0.5 MB + 2 MB
- Intel Pentium 3805U
   1.9 GHz / 0.5 MB + 2 MB
- Intel Core M 5Y10c
   0.8 GHz / 0.5 MB + 4 MB
- Intel Core M 5Y10a
   0.8 GHz / 0.5 MB + 4 MB
- Intel Core M 5Y10
   0.8 GHz / 0.5 MB + 4 MB
» AMD Phenom II X2 N640
   2.9 GHz / 2 MB
+ Intel Core 2 Extreme X7800
   2.6 GHz / 4096 KB
+ Intel Core 2 Duo T7800
   2.6 GHz / 4096 KB
+ Intel Core 2 Duo P8700
   2.53 GHz / 3072 KB
+ Intel Core i3 4020Y
   1.5 GHz / 512 KB + 3072 KB
+ Intel Core i3 4012Y
   1.5 GHz / 512 KB + 3072 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > AMD Phenom II X2 N640 Notebook Processor
Author: Klaus Hinum (Update: 2012-05-26)