AMD Phenom II X4 905E

AMD's Phenom II 905E is an energy efficient desktop processor and so helps to reduce your PC's power consumption

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AMD Phenom II X4 905E The 'E' signifies that this is an energy efficient processor
By  Jason Saundalkar Published  March 29, 2010

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Key Specs

Cache memory: 512KB L1, 2MB L2, 6MB L3
Clock speed: 2.5GHz
Number of cores: 4
Power consumption: 65-Watts
Price: $195

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The small ‘e' tacked onto this Phenom II's model denotes that it is an energy efficient CPU.

Looking at the chip's maximum thermal design power (TDP) confirms this, as it is rated for a maximum consumption of just 65-Watts. When strapped into our test bed this processor proved to be a cool operator; it's idle and load temperatures were just 39- and 44-degrees Celsius, using a stock AMD cooler. As a result this CPU is a decent buy for those looking to build a compact and silent HTPC machine using an AMD platform. It'll also save you money in the long run - despite its initial high price - because of its restricted appetite for power.

Unfortunately despite its cool-running nature the 905e isn't an overclocking beast because unlike the Phenom II X4 940 Black Edition, this CPU isn't multiplier unlocked.

Running the CPU through our benchmarking gauntlet the 905e proved the slowest processor in this grouptest; it simply couldn't keep pace with Intel's Core i5 and Core i7 CPUs.
However, considering its 500MHz clock deficit it kept pace quite well with the faster clocked Phenom II X4 940 Black Edition. Whereas the 940 took 121, 34, 49 and 175 seconds to complete the WinRAR compression, MPEG to DivX conversion, TMPGenc encode and Lame WAV to MP3 encode tests, the 905e finished just marginally slower with times of 115, 37, 56 and 208 seconds respectively.

Verdict: If you’re looking to build a cool and quiet HTPC or you just want to trim your electricity bill, the 905e is a great buy.

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