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AMD Athlon II X2 240e 2.8 GHz Socket AM3 Dual-Core 45W Processor Review

AMD Athlon II X2 240e 2.8 GHz Socket AM3 Dual-Core 45W Processor Review - PCSTATS
Abstract: The AMD Athlon II X2 240e is a 2.8GHz dual-core processor based on the AMD Regor core with a TDP of just 45W. The 'e' behind the Athlon II X2 240e model name indicates that it's one of AMDs Energy Efficient processors.
 72% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: AMD Oct 20 2009   Julian Apong  
Home > Reviews > CPU / Processors > AMD AMD Athlon II X2 240e

Core-by-Core System Power Draw

How much wattage will an energy-efficient processor save?

AMD's Athlon II X2 240e processor has just a 45W TDP rating, one of the lowest wattage processors to be placed on PCSTATS' test bench. Maximum TDP ratings are only half the story though, the processor's idle and single-core power usage are important factors that will determine its overall value.

To determine how much power multi-core processors draw, PCSTATS will be measuring total power consumption what the CPU is in idle and several CPU-stressed states.

To get an accurate measurement, it's necessary to disable AMD and Intel's power saving and CPU clock speed throttling technologies like Cool 'n' Quiet, EIST (speedstep) and C1E power states. To simulate single-core load a program called Stress Prime (SP2004) is used.

PCSTATS set about stressing each processor from one to all cores. This programs gives better insight into different power draw scenarios. The SP2004 program is multi-threaded, allowing individual CPU cores to be stressed by each instance of the program.

Total system power consumption was read with the Extech Power Analyzer Datalogger (model 380803). The Extech Power Analyzer is located between the main 120AC supply and the PC's power supply.

Total System Idle Power Draw
Processor Total System Power Draw
Intel Pentium 4 540 150 Watts
Intel Pentium D 840 165 Watts
Intel Pentium D 940 168 Watts
Intel Core 2 Duo E6600 117 Watts
Intel Core 2 Duo E6750 123 Watts
Intel Core 2 Duo E8400 131 Watts
Intel Core i7 920 144 Watts
AMD Sempron 3600+ 120 Watts
AMD Athlon64 4000+ 163 Watts
AMD Athlon64 FX-60 127 Watts
AMD Athlon64 X2 4800+ 143 Watts
AMD Athlon64 X2 5000+ 156 Watts
AMD Athlon64 FX-62 168 Watts
AMD Athlon II X2 240e 122 Watts
AMD Athlon II X2 250 128 Watts
AMD Athlon II X3 435 128 Watts
AMD Athlon II X4 620 130 Watts
AMD Phenom II X3 720 155 Watts
AMD Phenom II X4 955 148 Watts
AMD Phenom II X4 965 154 Watts

The idle scores of the Athlon II X2 240e are already looking quite promising, the only processors that draw less electricity in this state are the Intel Core 2 Duo E6600 and the AMD Sempron 3600+.

Total System Stressed Power Draw - All Cores/Threads
Processor Total System Power Draw (All Cores)
Intel Pentium 4 540 223 Watts
Intel Pentium D 840 (2 Core ) 240 Watts
Intel Pentium D 940 (2 Core Load) 253 Watts
Intel Core 2 Duo E6600 (2 Core Load) 156 Watts
Intel Core 2 Duo E6750 (2 Core Load) 163 Watts
Intel Core 2 Duo E8400 (2 Core Load) 158 Watts
Intel Core i7 920 (8 Thread Load) 213 Watts
AMD Sempron 3600+ 148 Watts
AMD Athlon64 4000+ 172 Watts
AMD Athlon64 FX-60 (2 Core Load) 196 Watts
AMD Athlon64 X2 4800+ (2 Core Load) 173 Watts
AMD Athlon64 X2 5000+ (2 Core Load) 207 Watts
AMD Athlon64 FX-62 (2 Core Load) 235 Watts
AMD Athlon II X2 240e (1 Core Load) 137 Watts
AMD Athlon II X2 240e (2 Core Load) 153 Watts
AMD Athlon II X2 250 (2 Core Load) 163 Watts
AMD Athlon II X3 435 (3 Core Load) 183 Watts
AMD Athlon II X4 620 (4 Core Load) 195 Watts
AMD Phenom II X3 720 (3 Core Load) 213 Watts
AMD Phenom II X4 955 (4 Core Load) 236 Watts
AMD Phenom II X4 965 (4 Core Load) 264 Watts

Under load, the results are just as good, the Athlon II X2 240e's power draw with both cores active is just 153W, which means that only the AMD Sempron 3600+ draws less power. It really does look like AMD has engineered a properly power-efficient mainstream processor, which has been a thorn in AMD's side during its 65nm days. The 45W Athlon II X2 240e doesn't quite manage a 20W lower power draw when compared to the 65W Athlon II X2 250 processor, but that's more likely because the the latter chip draws less than 65W to begin with.

With the power question settled, it's time to see just how far a low-wattage processor can be overclocked, if at all...

< Previous Page © 2017 PCSTATS.com Next Page >

 

Contents of Article: AMD AMD Athlon II X2 240e
 Pg 1.  AMD Athlon II X2 240e 2.8 GHz Socket AM3 Dual-Core 45W Processor Review
 Pg 2.  — Core-by-Core System Power Draw
 Pg 3.  Energy Effcient CPU Overclocking
 Pg 4.  32-bit CPU System Benchmarks: Sysmark 2007
 Pg 5.  32-bit CPU System Benchmarks: PCMark Vantage
 Pg 6.  32-Bit CPU Synthetic Benchmarks: Sandra 2009 Processor
 Pg 7.  32-Bit CPU Synthetic Benchmarks: Sandra 2009 Memory
 Pg 8.  32-Bit CPU Calculation Benchmarks: Super Pi
 Pg 9.  32-Bit CPU Calculation Benchmarks: wPrime2.0
 Pg 10.  32-Bit CPU Calculation Benchmarks: ScienceMark2.3, WinRAR
 Pg 11.  32-Bit CPU Rendering Benchmarks: Cinebench R10, Bibble 5
 Pg 12.  32-Bit CPU Rendering Benchmarks: POV-Ray
 Pg 13.  32-Bit CPU Rendering Benchmarks: SPECviewPerf 10
 Pg 14.  32-Bit CPU Synthetic Gaming Benchmarks: 3DMark Vantage
 Pg 15.  32-Bit CPU Synthetic Gaming Benchmarks: 3DMark 06
 Pg 16.  32-Bit CPU Gaming Benchmarks: Crysis
 Pg 17.  32-Bit CPU Gaming Benchmarks: FEAR
 Pg 18.  King of Low Wattage?

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