| AMD Phenom-II X4-840 CPU HDX840WFGMBOX |  |
| Reviews - Featured Reviews: Processors | |
| Monday, 03 January 2011 | |
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Page 9 of 13
Cinebench R11.5 Benchmarks Maxon Cinebench is a real-world test suite that assesses the computer's performance capabilities. Cinebench is based on Maxon's award-winning animation software, Cinema 4D, which is used extensively by studios and production houses worldwide for 3D content creation. Maxon software has been used in blockbuster movies such as Spider-Man, Star Wars, The Chronicles of Narnia and many more. Cinebench Release 11.5 includes the ability to more accurately test the industry's latest hardware, including systems with up to 64 processor threads and the testing environment better reflects the expectations of today's production demands. A more streamlined interface makes testing systems and reading results incredibly straightforward. The Cinebench R11.5 test scenario uses all of a system's processing power to render a photorealistic 3D scene, "No Keyframes" the viral animation by AixSponza. This scene makes use of various algorithms to stress all available processor cores. The OpenGL graphics card testing procedure uses a complex 3D scene depicting a car chase with which the performance of your graphics card in OpenGL mode is measured. During the benchmark tests the graphics card is evaluated by way of displaying an intricate scene that includes complex geometry, high-resolution textures, and a variety of effects to evaluate the performance across a variety of real-world scenarios.
In the CPU Single Core tests, Cinebench focuses on a single thread of processing, so all of the AMD CPU scores are based nearly completely on their clock speeds. You can see this clearly from the results if you exclude the Core i7 and i5 processors. The Phenom-II X4-840 at 3.2GHz sits right between the 3.3GHz Phenom-II X2-560BE and the 3.1GHz Athlon-II X4-645. The performance gain over the Athlon-II X4-645 is about 2.5%. Overclocking gives a 20% increase on the performance of the Phenom-II X4-840. The Intel processors seem to be preferred even by the Single Core Cinebench test. This test focuses on a single thread, so it is surprising that the 2.66GHz Core i7 performs as well as it does. The Core i5-2500K, at the same clock speed as the Phenom-II X2-560BE, easily outperforms all other CPUs. In the Multi-Core Cinebench test the Intel Core i7 can take advantage of multi-threading so the Core i7's four cores turn into eight threads, giving it a higher score than all but the Core i5-2500K. The 2500K doesn't have hyperthreading capabilities, but still destroys even the 8-threaded Core i7-920. The Multi-Core test also brings out the true performance of the $102 Phenom-II X4-840 and it beats the Athlon-II X4-645 by over 2%. When overclocked to 3.9GHz, the Phenom-II X4-840 comes closer to the 8-threaded performance of the Core i7-920 and increases its own performance by over 22%. Not bad for an inexpensive processor with no L3 cache.
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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 .