| AMD Phenom-II X4-840 CPU HDX840WFGMBOX |  |
| Reviews - Featured Reviews: Processors | |
| Monday, 03 January 2011 | |
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Passmark Performance TestPassMark Performance Test is a PC hardware benchmark utility that allows a user to quickly assess the performance of their computer and compare it to a number of standard 'baseline' computer systems. The Passmark Performance Test CPU tests all benchmark the mathematical operations, compression, encryption, SSE, and 3DNow! instructions of modern processors. In our tests there were several areas of concentration for each benchmark, which are combined into one compound score. This score is referred to as the CPU Mark, and is a composite of the following tests: Integer Math, Floating Point Math, Find Prime Numbers, SSE/3DNow!, Compression, Encryption, Image Rotation, and String Sorting. For this review, we've also decided to run the memory benchmark, which results in a composite score based on the following tests: small block allocation, cached read, uncached read, write performance, and large block allocation.
In the Passmark tests, the Phenom-II X4-840 gives us a surprise showing and outperforms the Athlon-II X4-645 by nearly 7% in the CPU test suite and 5% in the memory test suite. This is quite a bit more than the expected 3% increase due to the clock speed and we are not disappointed with that at all. As with the AIDA64 tests, overclocking the Phenom-II X4-840 to 3.9GHz gave us significant increases in performance over the stock X4-840 with a 21% increase in the CPU tests and 21.8% in the memory tests.
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Comments
However... the Phenom II 840 is not "a wolf in sheep's clothing", as you say, but more of a sheep in wolf's clothing :-)
It should be called a Athlon II 650, without a doubt. This renaming brings shame to AMD.
No doubt we will see the likes of HP and Acer peddling this Phalse Phenom to the gullible masses.
On a different note I am curious how many people complained when the the i5 was moved from the quad core as it originally released to a dual? Did anyone cry foul then?
The difference in actual results is mostly way below the 12.5% expected by the clock speed alone.
Seems like the only reason for spending the extra money on a "real" Phenom II X4 is to get a Black Edition with better overclocking.
Do not forget the L3 cache is suited for memory intensive tasking.
So just a clockspeed application a faster Athlon will beat a lower clocked Phenom,but whenever memory (Cache) comes in play a slower Phenom will beat an even higher clocked Athlon handsdown.
That's why in certain games the smaller P2X2 560 will beat the Athlon 2X4 645 .