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AMD Phenom II X3 P840

The AMD Phenom II X3 P840 is a tripple core processor for laptops that clocks with 1.9 GHz. It is based on the desktop Athlon II X3 processors (at a lower clock speed) and therefore features no level 3 cache. The low clock speed and missing level 3 cache leads to a rather slow performance, but enables the use in smaller laptops (14", 15") due to the TDP of 25 Watt. The performance should be on average between a 1.8 GHz and 2.4 GHz Core 2 Duo depending on how many cores are used.

The Phenom II P840 features an integrated DDR3 memory controller (on die).

SeriesAMD Phenom II X3
CodenameChamplain
Clock Rate1900 MHz
Front Side Bus3600 MHz
Level 1 Cache384 KB
Level 2 Cache1565 KB
Number of Cores / Threads3 / 3
Max. Power Consumption (TDP = Thermal Design Power)25 Watt
Manufacturing Technology45 nm
SocketS1
Featuresintegrated DDR3 Memory Controller, Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a)
64 Bit64 Bit support
Hardware VirtualizationAMD-V
Announcement Date10/04/2010

CPU Benchmarks

wPrime 2.0x: 1024m
0% 100%
min: 869.3     avg: 869.3 (91.12%)     max: 869.3 seconds*
wPrime 2.0x: 32m
0% 100%
min: 27.7     avg: 27.7 (95.3%)     max: 27.7 seconds*
Cinebench R10: Rendering Multiple CPUs 32Bit
0% 100%
min: 4425     avg: 4425 (12.72%)     max: 4425 Points
Super Pi mod 1.5 XS 1M:
0% 100%
min: 40.4     avg: 40.4 (93.08%)     max: 40.4 Seconds*
Super Pi mod 1.5 XS 2M:
0% 100%
min: 92.3     avg: 92.3 (96.92%)     max: 92.3 Seconds*
SiSoft Sandra Dhrystone (MIPS):
0% 100%
min: 17640     avg: 17640 (8.37%)     max: 17640 MIPS
SiSoft Sandra Whetstone (MFLOPS):
0% 100%
min: 18740     avg: 18740 (14.37%)     max: 18740 MFLOPS
- Range of benchmarks for this CPU
- Average benchmark score

Reviews for the AMD Phenom II X3 P840 processor

Samsung R525-JT05 (ATI Mobility Radeon HD 5470, 15.6")
» Samsung R525-JT05 - External Review

Sony Vaio VPC-EE3S1E/xx (ATI Mobility Radeon HD 5145, 15.5")
» Sony Vaio VPC-EE3S1E/xx - 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 X3

» AMD Phenom II X3 N870
   2.3 GHz / 1.5 MB
» AMD Phenom II X3 N850
   2.2 GHz / 1.5 MB
» AMD Phenom II X3 N830
   2.1 GHz / 1.5 MB
» AMD Phenom II X3 P860
   2 GHz / 1.5 MB
» AMD Phenom II X3 P840
   1.9 GHz / 1.5 MB
» AMD Phenom II X3 P820
   1.8 GHz / 1.5 MB

Surrounding CPUs

- Intel Pentium Dual Core T4500
   2.3 GHz / 1 MB
- Intel Core 2 Duo T7500
   2.2 GHz / 4 MB
- AMD Athlon 64 X2 (Desktop) FX-60
   2.6 GHz / 2 MB
- 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 / 2048 KB
+ AMD Turion II N550
   2.6 GHz / 2048 KB
+ AMD Turion II Ultra M640
   2.6 GHz / 2048 KB
+ Intel Core 2 Duo T7400
   2.16 GHz / 4096 KB
+ Intel Core 2 Duo T6670
   2.2 GHz / 2048 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > AMD Phenom II X3 P840 Notebook Processor
Author: Klaus Hinum (Update: 2012-05-26)