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AMD Athlon64 X2 4800+ 65nm Processor Review

AMD Athlon64 X2 4800+ 65nm Processor Review - PCSTATS
Abstract: Today the money is with 65nm SOI processor manufacturing, and with the AMD Athlon64 X2 4800+ the company has finally done the die shrink.
 84% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: AMD Mar 07 2007   Colin Sun  
Home > Reviews > CPU / Processors > AMD Athlon64 X2 4800+

Athlon64 X2 Performance-Per-Watt Metrics

Gone are the days when performance benchmarks settled all Intel vs. AMD processor debates.

The tone of the desktop computing world is palpably shifting towards power conservation, and even individual computer users are starting to ask themselves "just how much power is this going to use?"

Perhaps it's only when we consider the 24x7x365 electrical operating cost of a computer that these small power reductions muster any significance, but there it is. In a sense, what's happening now parallels the transition to from loud computers to the silent PC esthetic. Before hot-running computer processors went quiet, enthusiasts' attempts to reduce the PC noise were exceptions to the rule, rather than the norm.

An entire industry now thrives on selling quiet computer hardware, could the same hold true for energy efficient desktop processors that don't sacrifice performance? That certainly seems to be the direction computers are headed, and frankly this is a much overdue change.

I think we're all still finding our feet on the energy efficient component, but it's certainly a new aspect PCSTATS will be considering as we mull over the benchmark results of the Athlon64 X2 4800+ processor. Now, let's start off with total system power draw tests.

Athlon64 X2 Total System Power Consumption Tests

The cost of energy is increasing world wide, both monetarily and environmentally. Any reduction in the amount of power a CPU requires is a welcome respite. Wading through the technical numbers to figure out the differences can be confusing because Intel and AMD report power values in slightly different ways.

On paper AMD appears to consume more power since its values are higher, however AMD lists its maximum power usage while Intel posts typical. Obviously the two are not comparable and to find out which actually consumes more power, we decided to test things out.

Representing Intel will be the Core 2 Duo E6600, Pentium D 940, Pentium D 840, and Pentium 4 540 processors. Standing in for AMD are the socket AM2 Athlon64 X2 4800+, Sempron 3600+, Athlon64 FX-62, Athlon64 X2 5000+, and socket 939 Athlon64 4000+ and Athlon64 FX-60 processors.

The test specs for each system stayed as constant as possible: Akasa PowerPlus AK-P550FF power supply, Western Digital 74GB Raptor hard drive, an 8x Gigabyte DVD-/+RW drive and a MSI NX6600GT-TD128E videocard.

Cool 'n' Quiet is disabled for these tests because with Cool 'n' Quiet enabled, total system power draw will be even less that what is reported. A picture of the total system power draw test configuration is shown at right. The Extech Power Analyzer is located between the mains 120AC supply and the PC's power supply.

PCSTATS uses an Extech model 380803 Power Analyzer Datalogger for measuring CPU power & total system power draw.

The tool can be found here if you would like to replicate these microprocessor power measurements yourself.

To simulate single-core load, the Prime95 Small FFTs test was run, and two instances launched for dual core loading. Total system power consumption was read with the Extech Power Analyzer Datalogger (model 380803) for both CPU loaded and CPU idle states. These values are measuring an entire system while the processor is running under computational load or idle.

How does the socket AM2 Athlon64 X2 4800+ impact total system power draw? Let's have a look....

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Contents of Article: AMD Athlon64 X2 4800+
 Pg 1.  AMD Athlon64 X2 4800+ 65nm Processor Review
 Pg 2.  65nm manufacturing for AMD at Fab36
 Pg 3.  — Athlon64 X2 Performance-Per-Watt Metrics
 Pg 4.  Athlon64 X2 4800+ AM2 System Power Draw Tests
 Pg 5.  Technologies Behind the Athlon64 X2 4800+
 Pg 6.  Will 65nm improve overclocking potential?
 Pg 7.  Pure 32-Bit Benchmarks: SYSMark 2004
 Pg 8.  Pure 32-Bit Benchmarks: Office Productivity, SiSoft Sandra
 Pg 9.  Pure 32-Bit Benchmarks: Maya Render Test, Super Pi
 Pg 10.  Pure 32-Bit Benchmarks: PCMark05, 3DMark05
 Pg 11.  Pure 32-Bit Benchmarks: 3DMark06, Doom 3
 Pg 12.  Pure 32-Bit Benchmarks: Quake 4, FarCry
 Pg 13.  Pure 32-Bit Benchmarks: FEAR
 Pg 14.  64 Bit Benchmarks: ScienceMark 2
 Pg 15.  64 Bit Benchmarks: Mini-GZip, DiVX Encoding
 Pg 16.  Multi-Threaded Benchmarks: 3DMark05, Doom 3
 Pg 17.  Multi-Threaded Benchmarks: FEAR / Conclusions

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