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FX is a MAJOR downgrade from Phenom 2  

post #1 of 32
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When first bulldozer reviews arrived i have decided to quick check Anandtech review and was not impressed - thought that i will wait when later processors will arrive, since i was not interested in FX 8150 anyway... I bought a Gigabyte 990X motherboard this year in order to have SLI, hi quality sound and perhaps a future upgrade for a FX 6 core CPU. From time to time i do heavy video editing, and my UltraISO program also works alot with all the extraction and conversion stuff, so i definitely needed a 6 core CPU, not only for games.

I thought about upgrading my Phenom II 1075T to FX 6100 - in other words an older 6 core 3 - 3,5 GHz CPU to 3,3 - 3,6 GHz CPU. If there had been at least 10 % performance increase clock per clock, i would have been satisfied. So yesterday i have decided to read a through-out review about FX 6100 HERE and was horshacked.

Are you kidding me? FX 6100 being totally trashed by Phenom II 1100T by an average 33 % in almost all the tests! Only FX 8150 is roughly equal to 1100T?
Adding salt to the flesh i tested my Phenom 2 X6 at 3600 MHz VS Core 2 Duo E8400 at 3600 MHz in Crysis and Avatar and E8400 was 10 to 15 % faster.

Seeing tests that Core 2 Duo E8400 is roughly equal or slightly slower than Nehalem Core i3 540, which is, of course, considerably behind a Sandy Bridge Core i3 equivalent CPU, i am thinking how all the reviewers even dare to compare the AMD FX CPU with the Sandy Bridge CPU. The Phenom II processors never have beaten Nehalem Core i7 in the first place, and seeing how FX processors are even weaker than Phenom II, it is disgusting that FX processors are even mentioned in the same line with Sandy Bridge.

I don't feel like i need to upgrade my Pheom II, but if it will come to it, the only way i see is selling it with my 990X mobo and getting a 1155 system.

Please take my thoughts cool, i did not mean to offend any AMD fans, just stating my experience and observations..
Edited by Marshock - 4/30/12 at 2:24am
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post #2 of 32
You're 6 months late
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post #3 of 32
Welcome to 2011. Bulldozer also OC's to 4.6-4.8ghz on average it seems. Compare to 4-4.2ghz with Phenom II X6. FX 6-core was never meant to be an upgrade from Phenom II X6 - the logical step would be FX 8120 or 8150, seeing how those start in the $250-300 range, and Thuban 6-cores started in the $300 range at release. Anyways, FX-8120 at 4.8ghz is definitely a mild upgrade over Phenom II X6 at 4ghz, assuming you can use all 8 cores. Clearly a 6- or 8-core AMD CPU was never meant for gaming (cheap man's i5/i7 quad if you only care about the multi-threaded is the best I can say.). And clearly when the 8150 roughly matches the 2600k at multi-threaded, and gets blown away in single-threaded, again.. it's pretty obvious. Really, what did you expect in terms of single-threaded from a $300 8-core? Intel charges double that for a 6-core.
 
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post #4 of 32
Seriously dude you are so late to this..
/thread

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post #5 of 32
These guys are right. Especially post #2 tongue.gif.

4 options:
-Sell the fx6100 and use your old x6, oc it to 4.0.
-Sell the fx6100 and get an 8120, OC it to 4.8ish
-keep the fx6100 (its really not that bad), OC it some more, wait until Piledriver (next AMD gen)
-Sell everything, waste a bunch of money and go Intel. (not calling Intel a waste... but it would be a waste to sell new parts for another new system....)
 
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post #6 of 32
http://altfx.weebly.com

the fx processors enable future instructions(fma4, xop, cvt16) and are not specially great at older software, specially fpu-heavy ones.
there's a reason why CRAY EOL'd their HPC line of big box xeons/snady bridges. they offer AMD across their supercomputer lines.
post #7 of 32
Meh....i'm still happy with my 4100, does everything i ask it to and then some biggrin.gif
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post #8 of 32
Sorry but thats just not the case. A FX-8120 is faster than a Phenom X6 in the majority of benchmarks and applications. Add to that the Microsoft hotfix and the fact that a FX chip overclocks significantly better than a Phenom and its a definite upgrade. Yeah its not a huge upgrade and yeah its still slower than Intel but theyre still great processors and you can build a great performing rig with one.
post #9 of 32
Actually an 8120 is like 160$ on newegg right now, OC it to 4.8 and you will beat a 3.6 thuban, take into consideration extra heat and power. You have to weigh the loss of single threaded performance into the equation as well, then make your choice.
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post #10 of 32
d00d you are ..eight months late to the party :lachen.gif:
Hang in there...the next release might actually do something biggrin.gif

Best part of this thread="Horshacked" :lachen.gif:
PS..I bet my Zosma will outperform a lot of things..especially unlocked thumbsupsmiley.png
yeah yeah..a few less fps..big whoop...at least there's no "choppiness" in games
like with a ::cough cough:: dual-core Intel ph34r-smiley.gif
Edited by Schmuckley - 5/1/12 at 6:18pm
 
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