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Monday, 03 January 2011
Table of Contents: Page Index
AMD Phenom-II X4-840 CPU HDX840WFGMBOX
Features and Specifications
Closer Look: Phenom-II X4-840
Testing and Results
AIDA64 Extreme Edition v1.1 Benchmark Tests
Passmark PerformanceTest
PCMark Vantage Benchmark Tests
SiSoftware Sandra
Cinebench R11.5 Benchmarks
Street Fighter IV Benchmark
Video Transcoding Tests
AMD Phenom-II X4-840 Final Thoughts
AMD Phenom-II X4-840 Conclusion

Street Fighter IV Benchmark

PC-based video games can depend heavily on the CPU if the attached GPU (Graphics Processing Unit) is less powerful, or the graphics settings are configured so low that they create no strain on the video card and must rely purely on system processing speed; a phenomenon known as CPU-dependence. The opposite is true when the video game has a powerful video card installed, and can handle all graphical demands without receiving assistance from the CPU. Benchmark Reviews has proven consistently that, with a high end GPU in use, frame rates are not often noticeably impacted by changes in processor or RAM.

Capcom's Street Fighter IV is part of the now-famous Street Fighter series that began in 1987. The 2D Street Fighter II was one of the most popular fighting games of the 1990s, and now gets a 3D face-lift to become Street Fighter 4. The Street Fighter 4 benchmark utility was released as a novel way to test your system's ability to run the game. It uses a few dressed-up fight scenes where combatants fight against each other using various martial arts disciplines. Feet, fists and magic fill the screen with a flurry of activity. Due to the rapid pace, varied lighting and the use of music this is one of the more enjoyable benchmarks.

Street Fighter IV uses a proprietary Capcom SF4 game engine, which is enhanced over previous versions of the game. In terms of 3D graphical demand, Street Fighter IV is considered very low-end for most desktop GPUs. While modern desktop computers with discrete graphics have no problem playing Street Fighter IV at its highest graphical settings, integrated and mobile GPUs have a difficult time producing playable frame rates with the lowest settings configured.

While PC games are generally playable regardless of CPU, the Street Fighter IV game is surprisingly dependent on the CPU. That is why it is included here.

Phenom_II_X4_840_SF4.jpeg

It looks like Street Fighter IV really gives the advantage to the Intel Core processors, with the Core i7-920 taking the cake here. You can see, though, how CPU performance makes a significant (though probably not recognizable by the human eye) difference in the frame rates of SFIV. Oddly enough, the Phenom-II X4-840 is outperformed by the Athlon-II X4-645 in this test.



 

Comments 

 
# You tell it like it isBernardP 2011-01-04 06:09
Congrats for telling it like it is. I have read another review that glosses over the renaming trickery.

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.
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# Marketing at it's finestComputer Ed 2011-01-04 07:52
That in the end was the reason for it. My sources at AMD hinted that the name change was asked for by the partners. However as I understand it the 800 series will be the replacement as it where for the Athlon II line.

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?
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# I agreeHank 2011-01-04 12:10
I mentioned in my review of the i5-2500K that I was glad for the newer transparency with the Sandy Bridge CPUs where all i5 chips are quad-core with no hyperthreading. It's disappointing that they don't have hyperthreading, but at least we know what to expect when buying an i5 this time.
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# What about the "real" Phenom II?Olle P 2011-01-14 06:37
I think the most intriguing result of this test is how little extra performance is gained by adding 6MB L3 cache and hiking up the clock speed from 3.2 to 3.6 GHz (the specs of the 975).

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.
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# replyNormal 2011-01-20 14:17
@Olle P

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 .
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# MrDavid Richmond 2011-05-20 10:24
I built a new pc around a 840 cpu.I was going to use a i3 clarkdale originally but when I went to buy the supplyer only had the new sandybridge as I was on a tight budget I took the amd route instead.A great choice fsst at most tasks and cheap.
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